School of Medicine

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  • Raja Narayan, MD MPH

    Raja Narayan, MD MPH

    Affiliate, Dean's Office Operations - Dean Other

    Bio A Bay Area native, Dr. Raja Narayan attended James Logan High School in Union City before going on to Berkeley to obtain his BS in Chemical Biology. He earned his MPH in Biostatistics from Yale before his MD at the University of California, Irvine. Dr. Narayan joined the Stanford General Surgery residency program in 2015.

    Prior to joining Stanford, Dr. Narayan collaborated with the online education platform, Khan Academy, where he developed a library of Physiology videos for the MCAT as well as clinical videos for the NCLEX. While at Yale, Dr. Narayan led a multi-disciplinary team of engineers, pathologists, and surgeons to design, construct, test, and patent a device that preserves intestinal tissue better than the standard of care used to preserve harvested tissue for small bowel transplantation. This work earned him grants from the Yale Center for Engineering, Innovation, and Design as well as the Excellence in Medicine and Physician of Tomorrow awards by the American Medical Association.

    Between 2017-2019, Dr. Narayan spent a research sabbatical with the Hepatopancreatobiliary Surgery service at the Memorial Sloan Kettering Cancer Center studying targets for pancreatic cancer vaccines, genomic correlates of liver tumor biology, and regional differences in biliary tree cancer arising in patients from around the world. Since returning to Stanford in June 2019, Dr. Narayan now leads a team studying the use of artificial intelligence to define donor liver histopathology to predict the risk for early graft failure after transplantation.

    After completion of his residency training, Dr. Narayan plans to pursue a fellowship in Complex General Surgical Oncology.

  • Aussama Nassar, MD, MSc,FACS, FRCSC

    Aussama Nassar, MD, MSc,FACS, FRCSC

    Clinical Assistant Professor, Surgery - General Surgery

    Bio Dr. Nassar is a board certified General Surgeon in both the USA and Canada. Dr. Nassar has five years of clinical experience in tertiary care referral academic health-centres in Canada prior to joining Stanford University in surgery, trauma and critical care. His clinical interests are emergency and elective surgery in addition to trauma and critical care medicine. He is also a skilled endoscopist performing both upper and lower gastrointestinal endoscopy. His research interests are varied and include the development of assessment tools for trainees, burnout among physicians and other healthcare professionals. In addition he is especially interested in training trainees in simulation based medical education with a focus on perioperative inter-professional collaboration and patient safety. He is a true clinician educator and is a certified simulation educator as well as an ATLS course director. Dr. Nassar has also earned an MSc degree in Health Science Education from McMaster University, Canada.

  • Jeffrey Norton, MD

    Jeffrey Norton, MD

    The Robert L. and Mary Ellenburg Professor in Surgery

    Current Research and Scholarly Interests Interleukin-12 is a Th1 cytokine. It is important in the cell mediated immune response. We are investigating its role as an anti-tumor cytokine to augment the immune response against cancer. We are planning a human trial.

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