School of Medicine


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  • Oliver O. Aalami, MD

    Oliver O. Aalami, MD

    Clinical Associate Professor, Surgery - Vascular Surgery

    Current Research and Scholarly Interests We launched a national precision medicine PAD trial called, VascTrac (http://vasctrac.stanford.edu/). This trial is mobile phone based and leverages Apple's ResearchKit Platform to monitor a patient's activity both pre- and post-intervention. We are validating mobile phone surveillance for PAD patients and are currently enrolling.

  • Shipra Arya

    Shipra Arya

    Associate Professor of Surgery (Vascular Surgery) at the Stanford University Medical Center

    Bio Shipra Arya, MD SM FACS is an Associate Professor of Surgery at the Stanford University School of Medicine and section chief of vascular surgery at VA Palo Alto Healthcare System. She has a Master?s degree in epidemiology from the Harvard School of Public Health with focus on research methodology and cardiovascular epidemiology. She completed her General Surgery Residency at Creighton University Medical Center followed by a Vascular Surgery Fellowship at University of Michigan. She recently completed an American Heart Association (AHA) grant on risk prediction of cardiovascular outcomes and limb loss in Peripheral Arterial Disease (PAD) patients. She is currently funded by the NIH/NIA GEMSSTAR grant studying the impact of frailty on quality of surgical care in PAD and aortic aneurysm patients. The accumulated evidence from her research all points to the fact that frailty is a versatile tool that can be utilized to guide surgical decision making, inform patient consent and design quality improvement initiatives at the patient and hospital level. The field of frailty research in surgical population is still relatively nascent and her current work focuses on streamlining frailty evaluation, and implementation of patient and system level interventions to improve surgical outcomes and enhance patient centered care.

  • Jennifer Avise

    Jennifer Avise

    Clinical Assistant Professor, Surgery - Vascular Surgery

    Bio Dr. Avise is a board certified general surgeon and vascular surgeon specializing in cutting edge treatments of vascular disease. She completed her training at Emory University (MD, general surgery residency) and Wake Forest School of Medicine (2 year vascular surgery research fellowship) and joined the faculty of Stanford University Division of Vascular Surgery in 2016 as an Assistant Professor of Vascular Surgery. She is establishing a practice at Stanford Healthcare - Valleycare Hospital in Pleasanton and Outpatient Surgery Center in Emeryville to extend the Stanford quality and innovation in vascular surgery to the East Bay communities.

  • John Randol Bergquist

    John Randol Bergquist

    Clinical Instructor, Surgery - General Surgery

    Current Research and Scholarly Interests Dr. Bergquist's research interests are driven by his clinical practice and his background as an engineer. Clinical research interests are focused on improving outcomes for cancer patients. Dr. Bergquist has published on the utilization of biomarkers in particular CA 19-9 as a means to appropriately triage the multidisciplinary management of patients with advanced GI cancers. In addition, he is interested in improving understanding of optimal surgical management through the utilization of big data to understand trends in treatment and incidence as well as genomic patterns in cancer. Dr. Bergquist is also interested in surgical education and has been active in the production of educational videos focused on technical aspects of HPB surgery and in particular minimally invasive techniques. Finally, Dr. Bergquist's background as an engineer drives him to focus on the intersection between technology and clinical care. To this end, he is passionate about innovation in both hardware and software, and the potential impact of innovative design on the field of medicine.

  • C. Andrew Bonham

    C. Andrew Bonham

    Associate Professor of Surgery (Abdominal Transplantation) at the Stanford University Medical Center

    Current Research and Scholarly Interests Tolerance induction in liver transplantation.
    Hepatocyte transplantation.

  • Matias Bruzoni, MD FACS

    Matias Bruzoni, MD FACS

    Associate Professor of Surgery (Pediatric Surgery) at the Stanford University Medical Center

    Current Research and Scholarly Interests Minimal Access Surgery
    Neonatal Surgery
    Sutured vs Sutureless Gastroschisis Closure
    Ultrasound vs anatomic landmark central line placement
    Hispanic Center for Pediatric Surgery

  • Stephan Busque

    Stephan Busque

    Professor of Surgery (Abdominal Transplantation) at the Stanford University Medical Center

    Current Research and Scholarly Interests My research interest is focused on the improvement of clinical immunosuppression. I am involved in the evaluation of new immunosuppressive drugs, potentially more efficacious or less toxic. My ultimate goal is to achieve tolerance, a state that would obviate the need for any drugs. I am an investigator part of a multidisciplinary tolerance induction project using total lymphoid irradiation and donor hematopoietic stem cells infusion after living donor kidney transplantation.

  • Venita Chandra

    Venita Chandra

    Clinical Associate Professor, Surgery - Vascular Surgery

    Bio Dr. Chandra is a board certified vascular surgeon who specializes in cutting edge approaches to aortic aneurysmal disease, peripheral vascular disease and limb salvage.

  • Crystal Chang

    Crystal Chang

    Clinical Assistant Professor, Surgery - Plastic & Reconstructive Surgery

    Bio Dr. Crystal Chang is a Hospital Dentist and Clinical Instructor in Dental Oncology and Dental Medicine & Surgery. She focuses on maintaining oral health through the management of infection, trauma and secondary comorbidities to the dentition and its supporting structures. She performs medically necessary dental extractions in the context of cardiac disease, orthopedic surgery, cancer therapy and organ transplants.

    Clinical Focus:
    Hospital Dentistry
    Dental Surgery
    Dental Oncology
    Oral Pathology

  • James Chang, MD

    James Chang, MD

    Johnson and Johnson Professor of Surgery and Professor, by courtesy, of Orthopaedic Surgery at the Palo Alto Veterans Affairs Health Care System

    Current Research and Scholarly Interests My role in research is to apply novel advances in tissue engineering and microsurgery to the clinical problems of hand trauma, peripheral nerve injuries, and congenital hand problems. I am interested in developing new tissues and techniques that will allow optimal reconstruction of form and function to those patients requiring reconstructive surgery.

  • Stephanie Chao

    Stephanie Chao

    Assistant Professor of Surgery (Pediatric Surgery) at the Stanford University Medical Center

    Current Research and Scholarly Interests Dr. Chao's research focuses on preventing surgical diseases minimizing the impact of surgery. She works with the Asian Liver Center towards the global eradication of hepatitis B, the leading cause of liver cancer and liver disease globally. Dr. Chao helped launch the Jade Ribbon Campaign in 2001 to improve public and physician awareness about hepatitis B. Dr. Chao also serves as the Trauma Medical Director of LPCH and is interested in preventing pediatric traumatic injuries.

  • Tiffany Erin Chao

    Tiffany Erin Chao

    Academic Staff - Hourly - CSL, Surgery - General Surgery

    Bio Tiffany E. Chao, MD, MPH, FACS

    Tiffany Chao is a board-certified general/trauma surgeon at Santa Clara Valley Medical Center, an Adjunct Professor of Surgery in the Department of Surgery/Division of General Surgery in the School of Medicine, and a Faculty Fellow at the Stanford Center for Innovation in Global Health. She is the co-director of the undergraduate course HUMBIO 129S: Global Public Health and the medical school seminar SURG 236: Seminar in Global Surgery and Anesthesia, both Winter Quarter classes. She is also the associate director of Global Health: Beyond Diseases and International Organizations, a two-week intensive Spring Quarter course for Stanford residents and fellows.

    Prior to her current roles, she served as a Paul Farmer Global Surgery Research Fellow with Harvard Medical School's Program in Global Surgery and Social Change. There, she conducted cost-effectiveness analyses and pursued expansion of surgical delivery for indigent populations through surgical workforce and infrastructure development internationally, working primarily in Liberia, Kenya, and Haiti. She completed the CTSA/Lucile Packard Innovation Fellowship at Stanford Biodesign, eventually becoming a co-founder of Zenflow, Inc., a venture-backed medical device company working in minimally-invasive therapy for prostate disease.

    Dr. Chao holds dual Bachelor's degrees in Symbolic Systems and Psychology from Stanford University, as well as MD and MPH degrees from Mount Sinai School of Medicine, where she graduated with Alpha Omega Alpha honors. She completed General Surgery residency at the Massachusetts General Hospital in Boston.

  • Robert Chase

    Robert Chase

    Emile Holman Professor of Surgery, Emeritus

    Current Research and Scholarly Interests Research in teaching technology
    Computer assisted teaching programs

  • Christopher Cheng

    Christopher Cheng

    Adjunct Professor, Surgery - Vascular Surgery

    Current Research and Scholarly Interests Our research laboratory focuses on understanding the mechanics of the cardiovascular system, especially with respect to interactions between medical devices and the dynamic cardiovascular environment. We use medical imaging, 3D geometric modeling, and custom deformation quantification techniques to investigate disease processes and medical device performance. We are interested in the dynamics of the heart, aorta, and peripheral vasculature, and are always seeking ways to apply our research to current and emerging therapies. While our research pursuits seek to add to the fundamental understanding of cardiovascular biomechanics, all of our projects are directly related to improving medical device design, evaluation, regulation, and their use in clinical practice.

  • Bill Chiu

    Bill Chiu

    Associate Professor of Surgery (Pediatric Surgery) at the Stanford University Medical Center

    Bio Dr. Chiu obtained his B.S. degree in Biological Sciences and graduated with Honors from Stanford University. After graduating, he received his Medical Degree at Northwestern University Feinberg School of Medicine, where he remained for his internship and General Surgery residency training. Dr. Chiu completed his Pediatric Surgery training at The Children?s Hospital of Philadelphia. He is an Associate Professor at Stanford University School of Medicine where he has an active research program studying innovative approaches to treat patients with neuroblastoma.

  • William Choi

    William Choi

    Clinical Assistant Professor, Surgery - Plastic & Reconstructive Surgery

    Bio Clinical focus in Hospital Dentistry serving as needed for hospital inpatients, dental oncology, special needs and emergency room patients who need dental consultation or treatment.

  • Kirk Churukian

    Kirk Churukian

    Clinical Assistant Professor, Surgery - Plastic & Reconstructive Surgery

    Bio Kirk A. Churukian MD, FACS is board certified by the American Board of Plastic Surgery. Dr. Churukian completed training in general surgery, plastic surgery, and hand surgery. He was board certified in general surgery and is currently board certified in plastic surgery.

    Dr. Churukian is a member of several local, state, and national professional societies and has practiced in the Los Gatos/San Jose areas for more than 20 years. He tries to bring a friendly, creative, and patient focused approach to his cosmetic and reconstructive surgery practice.

    In addition to his private cosmetic practice, Dr. Churukian serves the community as a trauma specialist at San Jose Regional Medical Center. At this level II Trauma Center, he specializes in facial and orbital fracture repair and complex reconstructive surgery of the trunk and extremities. He also maintains an ongoing commitment to enhancing self-image with breast reconstruction for cancer survivors.

    Dr. Churukian grew up as a first generation eldest son of Armenian parents in Southern California and attended the University of Southern California, graduating with a degree in Psychobiology. Always interested in athletics, He participated in swimming and water polo throughout high school and played club water polo in college. This interest in aquatics was transferred to his children, all of whom are swimmers, and two of whom are avid water polo players. He currently resides in Menlo Park, California and is currently still married to his first wife ;-). He enjoys supporting Stanford athletics, except when the USC Trojans come to town!

  • Robin Cisco, MD

    Robin Cisco, MD

    Clinical Assistant Professor, Surgery - General Surgery

    Bio Dr. Robin Cisco is a board certified general surgeon and fellowship-trained endocrine surgeon. She specializes in surgery of the thyroid, parathyroid and adrenal glands and has expertise in lymph node dissection for thyroid cancer. Dr Cisco received her medical degree at Duke University before moving to Stanford for general surgery residency. During her residency, she completed a two-year research fellowship in surgical oncology, with a focus on cancer immunology.

    After residency, she completed an endocrine surgery fellowship with the internationally recognized UCSF Division of Endocrine Surgery. She is the author of multiple publications related to endocrine surgery and surgical oncology and has an interest in minimally invasive approaches to thyroid, parathyroid and adrenal surgery. She is currently co-director of Stanford's multidisciplinary Adrenal Tumors Program.

    Dr. Cisco focuses on providing outstanding surgical care in an environment that is supportive of her patients and their families. She enjoys patient education and preoperative counseling, and seeks to lessen the anxiety that often comes with a recommendation for surgery. She currently sees patients both in San Jose at Stanford's Cancer Center South Bay and in Palo Alto in the Endocrine Oncology and Surgery clinic.

  • Catherine Curtin

    Catherine Curtin

    Professor of Surgery (Plastic & Reconstructive Surgery) and, by courtesy, of Orthopaedic Surgery at the Stanford University Medical Center

    Current Research and Scholarly Interests Maintaining and optimizing upper limb function in people with spinal cord injury and other nerve disorders.
    Improving pain and general well being after severe hand injuries.
    Improving treatment and recognition of pain.

  • Ronald L. Dalman MD

    Ronald L. Dalman MD

    Walter Clifford Chidester and Elsa Rooney Chidester Professor of Surgery

    Current Research and Scholarly Interests Vascular biology, arterial remodeling, aneurysm development; innovative treatment strategies for AAA, animal models of arterial disease, arterial remodeling and flow changes in spinal cord injury, genetic regulation of arterial aneurysm formation

  • Frederick M. Dirbas, MD

    Frederick M. Dirbas, MD

    Associate Professor of Surgery (General Surgery) at the Stanford University Medical Center

    Current Research and Scholarly Interests My research interests are focused on minimizing the impact of breast cancer from a diagnostic and therapuetic standpoint. Breast MRI is a powerful tool to facilitate the screening for and staging of breast cancer, and can be valuable adjunct to guide breast surgery. Oncoplastic surgical techniques optimize cosmesis after breast cancer surgery. Accelerated radiotherapy after lumpectomy decreases radiotherapy treatment times from 6 weeks to just 1 to 5 days.

  • Monica M. Dua, MD

    Monica M. Dua, MD

    Clinical Associate Professor, Surgery - General Surgery

    Current Research and Scholarly Interests Technical aspects of minimally invasive pancreatic and liver surgery
    Minimally invasive strategies for the management of pancreatic necrosis
    Management of severe acute pancreatitis ? academic vs community treatment
    Multidisciplinary treatment of HCC; institutional barriers to appropriate referral/ care
    Endocrine/exocrine insufficiency after pancreatectomy; volumetric assessment
    Natural history and management of pancreatic cysts

  • James Dunn

    James Dunn

    Professor of Surgery (Pediatric Surgery) at the Lucile Salter Packard Children's Hospital and, by courtesy, of Bioengineering

    Current Research and Scholarly Interests Intestinal lengthening for short bowel syndrome
    Intestinal stem cell therapy for intestinal failure
    Skin derived precursor cell therapy for enteric neuromuscular dysfunction
    Intestinal tissue engineering

  • Dan Eisenberg, MD

    Dan Eisenberg, MD

    Associate Professor of Surgery (General Surgery) at the Palo Alto Veterans Administration Health Care Center

    Current Research and Scholarly Interests Minimally Invasive Surgery
    Metabolic-Bariatric Surgery

  • Yasser El-Sayed, Professor

    Yasser El-Sayed, Professor

    Charles B. and Ann L. Johnson Professor and Professor, by courtesy, of Pediatrics (Neonatology) and of Surgery at the Stanford University Medical Center

    Current Research and Scholarly Interests High Risk Obstetrics: preterm labor, preeclampsia, medical and surgical complications of pregnancy, prenatal diagnosis and therapy

  • Carlos O. Esquivel, M.D., Ph.D.,FACS

    Carlos O. Esquivel, M.D., Ph.D.,FACS

    Arnold and Barbara Silverman Professor in Pediatric Transplantation in the School of Medicine, Professor of Surgery (Abdominal Transplantation) and of Pediatrics (Gastroenterology) at the Stanford University Medical Center

    Current Research and Scholarly Interests 1) Induction of immunotolerance
    2) Rejection of liver and intestinal transplantation.
    3) Clinical outcomes of children with unresectable liver tumors.

  • Micaela Esquivel

    Micaela Esquivel

    Clinical Assistant Professor, Surgery - General Surgery

    Bio Micaela Esquivel, MD is a Clinical Assistant Professor of Surgery at Stanford University Medical Center and is the Director of Community Outreach and Engagement within the Stanford Department of Surgery. She is a bariatric and minimally invasive surgeon, who specializes in foregut surgery, robotic surgery and therapeutic surgical endoscopy. Dr. Esquivel completed both her General Surgery Residency and her Minimally Invasive Gastrointestinal and Bariatric Surgery Fellowship at Stanford University Medical Center. She earned her medical degree at the University of New Mexico School of Medicine. Dr. Esquivel has a special interest in natural orifice transluminal endoscopic surgery (NOTES), or incisionless surgery through endoscopic techniques. She is actively building the Bariatric Endoscopy Program at Stanford to offer procedures such as endoscopic sleeve gastroplasty and endoscopic suturing of the gastric pouch and outlet after gastric bypass for patients who experience weight regain. Dr. Esquivel believes everyone should have access to the highest quality of care they need, and her passion is minimizing health disparities and promoting health equity. As the Director of Community Outreach and Engagement she works directly with community organizations to form long-term partnerships and to implement and oversee programs aimed at reaching underserved populations. She speaks English and Spanish and enjoys adventuring across California with her wife and their three children.

  • Joseph (Joe) D Forrester MD MSc

    Joseph (Joe) D Forrester MD MSc

    Clinical Instructor, Surgery - General Surgery

    Current Research and Scholarly Interests I am broadly interested in research exploring the care of the injured patient both in high- and low-resource settings. I have specific on-going projects assessing surgical site infection surveillance in low-resource settings, and surgical management of acute and chronic non-union rib fractures.

  • Paige Fox

    Paige Fox

    Assistant Professor of Surgery (Plastic and Reconstructive Surgery) at the Stanford University Medical Center

    Bio Dr. Paige Fox is Board Certified Plastic Surgeon who specialized in hand surgery, reconstructive microsurgery, as well as peripheral nerve and brachial plexus surgery. She is an Assistant Professor in the Division of Plastic and Reconstructive surgery in the Department of Surgery. She works with adult and pediatric patients. Her research focuses on wound healing, disorders of the upper extremity, and surgical biosensors.

  • Eri Fukaya

    Eri Fukaya

    Clinical Associate Professor, Surgery - Vascular Surgery

    Bio Dr. Fukaya practices Vascular Medicine at the Stanford Vascular Clinics and Advanced Wound Care Center. She received her medical education in Tokyo and completed her medical training both in the US and Japan. She joined Stanford in 2015.

    Vascular Medicine covers a wide range of vascular disorders including chronic venous insufficiency, varicose veins, deep vein thrombosis, post thrombotic syndrome, peripheral artery disease, carotid artery disease, cardiovascular risk evaluation, fibromuscular dysplasia, rare vascular disease, lymphedema, arterial/venous/diabetic ulcers, and wound care.

    Dr. Fukaya has a special interest in venous disease and started the Stanford Vascular and Vein Clinic in 2016.

    Board Certified in Vascular Medicine
    Board Certified in Internal Medicine
    Board Certified in Internal Medicine (Japan)
    Board Certified in Plastic and Reconstructive Surgery (Japan)

  • John V. Gahagan, MD

    John V. Gahagan, MD

    Clinical Assistant Professor, Surgery - General Surgery

    Bio John Gahagan, MD is a Clinical Assistant Professor of Surgery in the Section of Colorectal Surgery. He has extensive training in advanced minimally invasive surgical techniques including robotic and laparoscopic surgery. He has authored several textbook chapters and original articles in peer-reviewed journals. His clinical practice is focused on the surgical treatment of colon and rectal cancers, inflammatory bowel disease (ulcerative colitis and Crohn?s disease), and benign colon and anorectal diseases (diverticulitis, hemorrhoids, fistulas, fissures). He believes in patient-centered care and multi-disciplinary approach to the treatment of diseases of the colon, rectum and anus. He joined Stanford in 2019 and is excited to build a Stanford colorectal surgery practice in the East Bay and Tri-Valley area at Stanford ? ValleyCare in Pleasanton.

  • Manuel Garcia Toca

    Manuel Garcia Toca

    Clinical Associate Professor, Surgery - Vascular Surgery

    Current Research and Scholarly Interests Open and endovascular management of vascular trauma, aortic dissection, complex thoracic and abdominal aortic aneurysm disease, critical limb ischemia, extracranial cerebrovascular disease and dialysis access.

  • Dyani Gaudilliere

    Dyani Gaudilliere

    Clinical Assistant Professor, Surgery - Plastic & Reconstructive Surgery

    Bio Dr. Dyani Gaudilliere specializes in Dental Surgery and Oral Oncology in a hospital setting. As a hospital dentist she performs surgical treatment of infection and trauma to the teeth and supporting alveolar bone. She also performs medically necessary dental clearance and extractions in the context of larger medical conditions, such as cardiac disease, joint replacement, or organ transplantation. As an oral oncologist, she specializes in surgical dental treatment prior to, during, and following radiation therapy and chemotherapy.

  • John Gosling

    John Gosling

    Professor (Teaching) of Anatomy in Surgery, Emeritus

    Current Research and Scholarly Interests My main research interest lies in the functional anatomy of the urogenital system particularly in the human. We are using numerous histochemical and immunocytochemical methods to establish the normal pattern and type of autonomic nerve which supply selected regions of the urogenital system including the urinary bladder, ureter and prostate.

  • Brooke Gurland, MD, FACS

    Brooke Gurland, MD, FACS

    Clinical Professor, Surgery - General Surgery

    Bio Pelvic floor and functional bowel disorders refer to a series of symptoms and anatomic findings that effect men and women of all ages. These may include: constipation, difficult evacuation, fecal incontinence, irritable bowel disorders, diarrhea, pelvic organ prolapse, urinary and sexual dysfunction and pain. Although not life threatening, these disorders can severely affect quality of life and individual performance.

    Over the past two decades I have dedicated my career to working with other specialists for comprehensive care for individuals with pelvic floor disorders. In July 2017, I joined The Department of Surgery, Division of Colorectal Surgery at Stanford University as the Medical Director of the Pelvic Health Center. I previously spent the prior decade at Cleveland Clinic running a multidisciplinary clinic and performing over 200 combined procedures in conjunction with colleagues in urology and urogynecology. We developed a robotic surgical approach to woman with vaginal and rectal prolapse and performed many surgeries to repair intestinal and rectal fistula (abnormal communications between the intestine and vagina).

    Prior to that I established a Pelvic Floor Center at Maimonides Medical Center received a Jahnigan Career Development Award looking at multicompartment prolapse in elderly women. In addition to performing surgery and teaching throughout my career, I have maintained a commitment to long-term follow up of patients after surgery.
    Although my training and focus is around surgical techniques and solutions for anorectal disorders and pelvic health, I believe that prevention, non-surgical alternatives, diet, exercise, and behavior management are vitally important to patient success.

    One of my many goals is to educate patients, health care providers, and trainees about pelvic floor disorders.
    When I am not at work I enjoy quality time with my three teenagers, dog, friends and I practice yoga.

  • Geoffrey Gurtner

    Geoffrey Gurtner

    Johnson & Johnson Professor of Surgery and Professor, by courtesy, of Bioengineering and of Materials Science and Engineering

    Current Research and Scholarly Interests Geoffrey Gurtner's Lab is interested in understanding the mecahnism of new blood vessel growth following injury and how pathways of tissue regeneration and fibrosis interact in wound healing.

  • Beth Habelow

    Beth Habelow

    Lecturer, Surgery - Anatomy

    Bio Physical therapist, lecturer

  • E. John Harris Jr.

    E. John Harris Jr.

    Professor of Surgery (Vascular) at the Stanford University Medical Center

    Current Research and Scholarly Interests I am interested in thrombosis and the role of thrombin and its receptor in venous wall remodeling following venous thrombosis. I am also interested in vascular hemodynamics and the use of ultrasound, MRI and computational modeling in evaluating arterial flow in exercise conditions.

  • Gary E Hartman, MD, MBA

    Gary E Hartman, MD, MBA

    Clinical Professor, Surgery - Pediatric Surgery

    Current Research and Scholarly Interests Minimal Access and Robotic Surgery
    Neonatal Surgery
    Childhood Oncology

  • Mary Hawn, MD, FACS

    Mary Hawn, MD, FACS

    Emile Holman Professor in Surgery

    Current Research and Scholarly Interests My area of research is health services researcher focusing on surgical quality measurement and policy. I have a background and training in epidemiology coupled with my leadership roles in surgical quality measurement. My expertise and extensive experience in evaluation of surgical quality process and outcome linkage has impacted national policy and changed guidelines. We performed a comprehensive evaluation of the Surgical Care Improvement Project (SCIP) implementation using national VA data. Defining robust metrics of surgical quality that are actionable and can lead to sustained improvement in our field are of utmost importance. I also have experience with risk prediction modeling for surgical patients. Our Decision Support for Safer Surgery study developed models of real-time risk prediction for major complications and prospectively validated our models in patients and with expert surgeons. We were able to discern where computational risk prediction has added value and where it falls short. We currently have a national study investigating readmissions following major surgical procedures to identify opportunities for improving care and reducing costs.

  • Jill Helms

    Jill Helms

    Professor of Surgery (Plastic & Reconstructive Surgery)

    Current Research and Scholarly Interests Dr. Helms' research interests center around regenerative medicine and craniofacial development.

  • Rod Hentz

    Rod Hentz

    Professor of Surgery, Emeritus

    Current Research and Scholarly Interests 1. Nerve regeneration and repair, evaluation of repair methods, modalities to enhance peripheral nerve regeneration, development of improved methods to analyze nerve regeneration.

    2. Implementation of functional neuromuscular stimulation to paralytic deformities.

    3. Computer modeling of upper limb function.

  • Tina Hernandez-Boussard

    Tina Hernandez-Boussard

    Associate Professor (Research) of Medicine (Biomedical Informatics), of Biomedical Data Science and of Surgery

    Current Research and Scholarly Interests My background and expertise is in the field of computational biology, with concentration in health services research. A key focus of my research is to apply novel methods and tools to large clinical datasets for hypothesis generation, comparative effectiveness research, and the evaluation of quality healthcare delivery. My research involves managing and manipulating big data, which range from administrative claims data to electronic health records, and applying novel biostatistical techniques to innovatively assess clinical and policy related research questions at the population level. This research enables us to create formal, statistically rigid, evaluations of healthcare data using unique combinations of large datasets.

  • Robert K. Jackler, MD

    Robert K. Jackler, MD

    Edward C. and Amy H. Sewall Professor in Otorhinolaryngology and Professor, by courtesy, of Neurosurgery and of Surgery

    Current Research and Scholarly Interests Tobacco advertising - please see below for details

    Clinical: Development of innovative surgical methods, via the cranial base, to expose inaccessible intracranial disease. Surgical simulation and robotics. Evidence based outcomes analysis in acoustic neuroma and other tumors of the cerebellopontine angle.

    Medical history - especially the history of otology, neurosurgery, deafness, and quackery.

  • Stefanie S. Jeffrey, MD

    Stefanie S. Jeffrey, MD

    John and Marva Warnock Professor

    Current Research and Scholarly Interests Dr. Jeffrey led the multidisciplinary team from the Schools of Medicine, Engineering, and Genome Technology Center that invented the MagSweeper, an automated device that immunomagnetically captures live circulating tumor cells (CTCs) from cancer patient blood for single cell analysis or culture. Her lab also works on microfluidic technologies for tumor cell capture, characterization, and growth - with the goal of defining individual patient response to newer biologically-based cancer therapies.

  • David Kahn

    David Kahn

    Clinical Associate Professor, Surgery - Plastic & Reconstructive Surgery

    Current Research and Scholarly Interests Cosmetic surgery and the study of changes associated with the aging appearance of the face.

    1. Analysis and development of new procedures for aesthetic surgery of the face
    2. Analysis of the changes the face undergoes with age in the bone and soft tissues
    3. Analysis of techniques for rhinoplasty
    4. Evaluation of optimal techniques for aesthetic and reconstructive breast surgery

  • Nathan Kalinowski

    Nathan Kalinowski

    Clinical Instructor, Surgery - Plastic & Reconstructive Surgery

    Bio Dr. Nathan Kalinowski is a Hospital Dentist and Clinical Instructor in Dental Medicine and Surgery. He performs medically necessary dental clearance and extractions for patients preparing for cardiac surgery, radiation therapy, or organ transplantation. He also performs surgical treatment of infection and trauma to the teeth and supporting alveolar bone.

  • Mardi Karin, MD, FACS

    Mardi Karin, MD, FACS

    Clinical Associate Professor, Surgery - General Surgery

    Bio Dr. Mardi R. Karin is a board certified surgeon with over 20 years of experience and the clinical director of breast cancer care at Stanford Cancer Center South Bay. Dr. Karin specializes in the diagnosis and treatment of breast diseases and cancer. Her focus and leadership in breast cancer care includes improving coordinated care for breast cancer treatment, developing optimal survivorship plans, and extensive experience in building strong relationships with community physicians. Dr. Karin has extensive experience in a wide variety of general surgery procedures and all types of breast surgery, including breast conservation treatment. In addition, Dr. Karin is well experienced in complex breast cancer skin and nipple sparing procedures in coordination with the plastic surgeon for immediate breast reconstruction and optimal appearance with excellent outcomes.

  • Karthikeshwar Kasirajan (Kasi)

    Karthikeshwar Kasirajan (Kasi)

    Clinical Professor, Surgery - Vascular Surgery

    Bio Dr. Kasirajan is a board-certified, fellowship-trained vascular surgeon. Also known as Dr. Kasi, he is a clinical professor of vascular surgery at Stanford University School of Medicine.

    Dr. Kasirajan preserves limbs, facilitates access to dialysis, and helps his patients manage conditions such as aneurysms, varicose veins, thoracic outlet syndrome, and deep vein thrombosis. Many of his limb preservation patients smoke, have diabetes, or are experiencing renal failure. Dr. Kasirajan?s experience also centers around the treatment of aneurysms and prevention of strokes.

    In all cases, his goal is to provide either noninvasive or minimally invasive management whenever possible. He performs open surgery only when it is the best option. Dr. Kasirajan treats many patients with stents and stent grafts, which can shorten hospital stays and recovery times.

    Dr. Kasirajan (Kasi) receives referrals of patients from primary care physicians, nephrologists, podiatrists, cardiologists, woundcare specialists, diabetologists, neurologists, and other specialists. He welcomes referrals as early as possible, ideally before patients become symptomatic. A strong proponent of doing early screening for peripheral artery disease, Dr. Kasirajan advocates for the use of the ankle-brachial index (ABI) in routine physical examinations. When providers detect an imbalance between leg and arm blood pressure, Dr. Kasirajan can help create customized strategies to address the cause before the problem worsens.

    In addition to offering excellent vascular care to the community, Dr. Kasirajan joined Stanford to continue pursuing his research interests. He has conducted research into advances in minimally invasive procedures for stroke prevention and for aneurysm management. His research has also focused on how to improve surgery outcomes to help patients suffering from peripheral vascular disease. Dr. Kasirajan has been the investigator in over 40 multicenter studies involving new stent graphs, thrombectomy catheters, and other advances in endovascular technology.

    Dr. Kasirajan has made more than 100 presentations worldwide on minimally invasive vascular surgery techniques and preventive care in the vascular patient. He has spoken at multiple conferences including the Society for Vascular Surgery, Peripheral Vascular Society, and the South Asian American Vascular Society. He has earned numerous honors for his academic achievements, including the prestigious Alpha Omega Alpha award for medical student and resident education.

    As the author of more than 120 journal articles, Dr. Kasirajan?s work has appeared in the Journal of Vascular Surgery, Endovascular Today, Pharmacogenomics Journal, Catheter Cardiovascular Intervention, and many other publications. He also has authored 20 book chapters in textbooks including Medical Management of the Surgical Patient 5th Edition, Advances in Phlebology and Venus Surgery Volume 1, Current Therapy in Vascular Surgery, Mastery of Surgery, and many more.

    Dr. Kasirajan has served on the editorial boards of the Journal of Endovascular Therapy, Annals of Vascular Surgery, International Journal of Angiology, and other publications.

  • Electron Kebebew, MD, FACS

    Electron Kebebew, MD, FACS

    Harry A. Oberhelman, Jr. and Mark L. Welton Professor

    Current Research and Scholarly Interests Dr. Kebebew?s translational and clinical investigations have three main scientific goals: 1) to develop effective therapies for fatal, rare and neglected endocrine cancers, 2) to identify new methods, strategies and technologies for improving the diagnosis and treatment of endocrine neoplasms and the prognostication of endocrine cancers, and 3) to develop methods for precision treatment of endocrine tumors.

  • Lisa Marie Knowlton, MD, MPH

    Lisa Marie Knowlton, MD, MPH

    Assistant Professor of Surgery (General Surgery) at the Stanford University Medical Center

    Bio Dr. Knowlton is a trauma and critical care surgeon and public health researcher whose focus is on improving access to and quality of care for trauma and surgical patients. She obtained her medical degree at McGill University and completed her general surgery residency at the University of British Columbia in Vancouver, Canada. Her desire to understand varied healthcare systems and develop solutions for vulnerable surgical populations led her to obtain an M.P.H. at the Harvard T.H. Chan School of Public Health and complete a research fellowship at the Harvard Humanitarian Initiative. Most recently, she trained as a Surgical Critical Care fellow at Stanford University Medical Center and joined the faculty as an Assistant Professor of Surgery in early 2018. Dr. Knowlton's research focuses on addressing barriers in access to care and reducing disparities among vulnerable surgical populations, including underinsured trauma patients. She is also investigating the financial burden that injury imposes upon both patients and hospitals, with the goal of finding economically sustainable strategies for ensuring best outcomes among trauma patients. These include the study of emergency Medicaid programs at the state and national level. She was recently awarded the 17th C. James Carrico Faculty Research Fellowship by the American College of Surgeons to better understand the link between socioeconomic status, insurance coverage and quality of patient outcomes for trauma patients receiving care within U.S hospitals. Dr. Knowlton is board certified by the American Board of Surgery and the Royal College of Physicians and Surgeons of Canada. In addition to her research work surrounding surgical disparities, she is a member of the American Association for the Surgery of Trauma Diversity and Inclusion Committee, as well as the Stanford Surgery Diversity and Inclusion Cabinet.

  • James R. Korndorffer, Jr. MD, MHPE, FACS

    James R. Korndorffer, Jr. MD, MHPE, FACS

    Associate Professor of Surgery (General Surgery) at the Stanford University Medical Center

    Bio James R. Korndorffer, Jr. MD MHPE FACS is Associate Professor and Vice Chair of Education in the Department of Surgery at Stanford University. Previously he served as Vice chair of Surgery at Tulane University Health Sciences Center in New Orleans. While at Tulane he also was the Surgery Residency Program Director, the assistant dean for Graduate medical education and the Medical Director of the Tulane Center for Advanced Medical Simulation and Team Training. He received his undergraduate degree in Biomedical Engineering from Tulane University, his Medical Degree from the University of South Florida College of Medicine and his Masters in Health Professions Education from the University of Illinois Chicago. His general surgery residency was completed at The Carolinas Medical Center in Charlotte, North Carolina and his Advanced Laparoscopic Fellowship was completed at Tulane University.

    He is actively involved in numerous national societies including the American College of Surgeons, the Society for Gastrointestinal and Endoscopic Surgeons, the Association for Surgical Education, and the Association for Program Directors in Surgery. He serves on the American College of Surgeons Committee on Validation of Surgical Knowledge and Skills, SAGES Fundamentals of Laparoscopic Surgery and Development Committees and also serves as the APDS research committee vice chair.

    Dr. Korndorffer has published over 60 papers in peer reviewed journals, 5 book chapters and has presented at over 100 national meetings. Dr. Korndorffer?s clinical interests include minimally invasive surgery for gastrointestinal disorders and hernias. His research interests include surgical education, surgical simulation, patient safety, and patient care quality.

  • Sheri Krams

    Sheri Krams

    Professor of Surgery (Abdominal Transplantation)

    Current Research and Scholarly Interests Research Interests: 1) NK Cell Responses to EBV, 2) Exosomes in Immune Responses, 3) Plasmacytoid Dendritic Cell-Mediated Graft Prolongation, 4)Transplant Immunology

  • Thomas M. Krummel, MD, FACS/FAAP

    Thomas M. Krummel, MD, FACS/FAAP

    Emile Holman Professor, Emeritus

    Current Research and Scholarly Interests Surgical Innovation, Simulation and Virtual Reality in Surgical Education, Fetal Healing-Cellular and Biochemical Mechanisms

  • Amy Ladd, MD

    Amy Ladd, MD

    Elsbach-Richards Professor of Surgery and Professor, by courtesy, of Medicine (Immunology & Rheumatology) and of Surgery (Plastic and Reconstructive Surgery) at the Stanford University Medical Center

    Current Research and Scholarly Interests Research Interests
    1. The kinematics and forces associated with thumb carpometcarpal (CMC) function and pathology
    2. The anatomy, microstructure, and immunofluorescent characteristics of the thumb CMC joint
    3. Pathomechaniics of CMC arthritis: biomechanical wear, injury, genetic, and environmental causes
    4. Archiving, vitalizing, and innovating medical and surgical knowledge, most recently with innovative iBook monographs

  • James N. Lau, MD, MHPE, FACS

    James N. Lau, MD, MHPE, FACS

    Clinical Professor, Surgery - General Surgery

    Current Research and Scholarly Interests My personal mission is to contribute to the overall care of the surgical patient through clinical practice, training, and education. My research interests, as they pertain to this mission, are the surgical management of ventral hernias, minimal access surgical techniques, evidenced based surgery, surgical skills acquisition, and surgical education.

  • Byrne Lee, MD FACS

    Byrne Lee, MD FACS

    Clinical Professor, Surgery - General Surgery

    Bio Dr. Lee is a native of New York City. He attended the Sophie Davis School of Biomedical Education at the City College of New York and received his medical degree from New York Medical College. He completed general surgery residency training at Lenox Hill Hospital and fellowship training in surgical oncology at the City of Hope National Cancer Center. Dr. Lee led the Peritoneal Surface Malignancy Program at City of Hope prior to joining Stanford in 2019.

    Dr. Lee is a surgical oncologist who specializes in the treatment of gastrointestinal malignancies. He has dedicated his clinical practice to the surgical management of metastatic disease, particularly to the liver and peritoneum. He has expertise in delivering regional cancer therapies such as heated intraperitoneal chemotherapy (HIPEC). Additionally, he performs surgery for cancers of the stomach, liver, pancreas, small intestine, colon, and soft tissue sarcoma. He utilizes minimally invasive and robotic surgical techniques when appropriate.

    Dr. Lee leads the Regional Cancer Therapies program at Stanford. The program implements and develops novel treatment strategies for patients affected with peritoneal malignancies and oligometastatic disease to the liver. His research focus is on clinical outcomes of multidisciplinary management for gastric, hepatobiliary, and peritoneal surface malignancies. He is a member of a national consensus group performing collaborative research and developing clinical trials for HIPEC surgeries.

  • Gordon K. Lee, M.D.

    Gordon K. Lee, M.D.

    Professor of Surgery (Plastic and Reconstructive Surgery) at the Stanford University Medical Center

    Current Research and Scholarly Interests Novel techniques in microsurgery and complex reconstructive surgery. Plastic Surgery Outcomes Research and Education. Breast reconstruction. Esophagus reconstruction. Head and Neck reconstruction. Perineogenital reconstruction.

  • Jason T. Lee

    Jason T. Lee

    Professor of Surgery (Vascular Surgery) at the Stanford University Medical Center

    Current Research and Scholarly Interests Dr. Lee is the Principal Investigator on several clinical trials examining therapeutic strategies for management of complex aortic aneurysm disease as well as aortic dissection.

    Dr. Lee’s clinical interests include:

    •Endovascular repair of abdominal/thoracic aneurysms and dissections
    Fenestrated and Branch Repair of the thoracic, thoracoabdominal, and abdominal aneurysms
    •Carotid stenting
    •Thoracic outlet syndrome
    •Vascular disorders in high-performance athletes

  • Dana Lin, MD

    Dana Lin, MD

    Clinical Assistant Professor, Surgery - General Surgery

    Bio Dr. Lin is a fellowship-trained endocrine surgeon who specializes in surgery of the thyroid, parathyroid, and adrenal glands. After receiving her undergraduate degree from Stanford University, Dr. Lin pursued her medical and surgical training on the east coast, where she completed her residency in general surgery at Rutgers Robert Wood Johnson Medical School and fellowship in endocrine surgery at the Harvard-affiliated Massachusetts General Hospital.

    Dr. Lin's clinical practice focuses on the surgical management of benign and malignant thyroid conditions, hyperparathyroidism, adrenal tumors, as well as melanoma and advanced skin cancers. She is skilled in mini-incision, minimally invasive (laparoscopic), and remote access (scarless endoscopic) surgery as well as lymph node dissection for cancer. She currently serves as Director of the Parathyroid Center within the Endocrine Oncology Program at Stanford.

    Dr. Lin strives to deliver expert surgical care to patients with utmost humanism and compassion. She considers it a privilege and joy to be entrusted as one?s surgeon and is committed to ensuring the best clinical and cosmetic outcome for each of her patients. Dr. Lin welcomes patients at Stanford Cancer Center in Palo Alto as well as Stanford Health Care in Emeryville and Pleasanton (ValleyCare).

  • Bruce Ling

    Bruce Ling

    Assistant Professor (Research) of Surgery (Pediatric Surgery)

    Bio Clinical Focus
    ? Big data analytics for quality improvement and clinical effectiveness
    ? Disease biomarker discovery through multi-omics based analyses

    Academic Appointments
    ? Assistant Professor Surgery

    Professional Education
    ? B.S., Biochemistry, Fudan University, China (1990)
    ? M.A., Molecular and Developmental Biology, UCLA, US (1994)
    ? Ph.D., Biological Chemistry, UCLA, US (1996)
    ? Postdoctoral training, medicine/oncology/Computer science, Stanford University, US (1996-1998)
    ? Business administration, Leavey School of Business, Santa Clara University, US (2000-2001)

  • Stanley Yung Liu, MD, DDS

    Stanley Yung Liu, MD, DDS

    Assistant Professor of Otolaryngology/Head & Neck Surgery (Sleep Surgery) and, by courtesy, of Surgery (Plastic and Reconstructive Surgery) at the Stanford University Medical Center

    Bio Dr. Liu is as an Assistant Professor of Otolaryngology, and of Plastic and Reconstructive Surgery by courtesy, at Stanford University School of Medicine. He is co-director of the Stanford Sleep Surgery Fellowship, and preceptor to the Stanford Oculoplastic Surgery Fellowship. He is a Stanford Biodesign Faculty Fellow Alum.

    Dr. Liu received medical and dental degrees from the University of California-San Francisco (UCSF). He was a former Howard Hughes Medical Institute (HHMI) Research Scholar. After oral and maxillofacial surgery residency at UCSF, he completed the Stanford sleep surgery fellowship in 2014 with the Department of Otolaryngology and sleep surgery pioneer Dr. Robert Riley.

    Dr. Liu practices the full scope of sleep apnea surgery including nasal, palate, tongue base, hypoglossal nerve stimulation, genioglossus advancement, and maxillomandibular advancement (MMA). He introduced adult maxillary expansion (DOME) for OSA with Professor Christian Guilleminault in 2015, and has continued to update the comprehensive sleep surgery protocol at Stanford.

    He is also routinely referred patients who need complex facial trauma and orthognathic surgery.

    Dr. Liu's active areas of research include dynamic airway examination to optimize sleep surgery outcome, virtual surgical planning for facial skeletal surgery, and neuromodulation of the upper airway. He has given keynote talks nationally and internationally at preeminent sleep conferences across specialties. He has published over 80 scientific articles and medical texts, with original scientific work on sleep surgery.

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