Tri-Valley Neurology Team

Prashanth Krishnamohan, MD
Clinical Associate Professor of Neurology & Neurological Sciences
Medical Director of Neurology, Stanford Health Care Tri-Valley

Dr. Krishnamohan joined the Stanford Stroke Center as a Fellow in Neurocritical Care and Stroke in 2015 after completing an Internal Medicine residency in India and Neurology residency at the University of Kentucky. His clinical focus is on caring for patients with neurological illnesses in the intensive care unit. His research interest focuses on identifying predictors of brain injury severity after cardiac arrest. He is also the Medical Director of Neurology at Stanford Healthcare Tri-Valley hospital where he is involved in building and expanding the Neurology program and also cares for hospitalized patients with acute strokes and other neurological diseases.


Rachelle Dugue, MD, PhD
Clinical Assistant Professor
Neurology & Neurological Sciences

Dr. Dugue is a board-certified neurologist and fellowship trained vascular neurologist. She completed her M.D. and Ph.D in Neuroscience at SUNY Downstate Medical Center, followed by neurology residency at Columbia University Medical Center, New York Presbyterian with distinctions in research, patient care, and medical education, including the Gold Foundation Humanism and Excellence in Teaching Award. She then completed vascular neurology fellowship at Stanford and joined the Neurohospitalist Division in 2023.

Dr. Dugue is passionate about health equity, mentorship and education within neurology.  She is dedicated to improving inclusion and diversity in medical education and clinical trials. She has published in numerous journals on topics ranging from neuroinfectious disease to ischemic stroke and traumatic brain injury, with the goal of advancing our understanding and treatment of acute neurologic diseases.


Shefali Dujari, MD
Clinical Assistant Professor
Neurology & Neurological Sciences

Dr. Dujari is a board-certified neurologist and fellowship-trained neurohospitalist. She joined the Stanford Neurohospitalist Program in 2021. She completed neurology residency at Stanford University where she served as chief resident during her final year. She completed neurohospitalist fellowship training at Stanford University.  

Dr. Dujari serves as the Associate Program Director for the Stanford Neurology Residency, Associate Program Director for the Stanford Neurohospitalist Fellowship Program, Director of Quality for Neurosciences at Stanford Health Care - TriValley, and faculty lead for the Stanford Neurology Resident and Fellow Wellness and Mentoring Program.


Hanna Louise Kirsch, MD
Clinical Assistant Professor
Neurology & Neurological Sciences

Dr. Kirsch joined Stanford University in 2020 after residency at the University of California, San Francisco and fellowship at New York Presbyterian Columbia and Cornell Hospitals. She cares for neurologically critically ill patients in the intensive care unit and for neurology inpatients at Stanford Healthcare Tri-Valley Hospital. Her research interests include how best to teach and evaluate palliative care skills in neurology trainees, and how to evaluate and reduce moral distress in neurointensive care physicians. 


Kenneth Leung, MD, MS
Clinical Assistant Professor
Neurology & Neurological Sciences

Dr. Leung is a board-certified neurologist who practices both comprehensive neurology and neuromuscular medicine. He has a particular interest in the diagnosis and management of a broad range of disorders affecting muscle and nerves, including motor neuron disease, neuropathy, neuromuscular junction disorders, and myopathy. Additionally, he is an avid clinician educator who develops course work, is involved in education research, and teaches medical students and neurology residents/fellows. He currently serves as Director of the Neurology Clerkship for medical students within the Stanford University School of Medicine.

He earned his bachelor’s degree from the University of California, Berkeley where he was awarded the 2011 Departmental Citation Award for Excellence in Research in Immunology. In 2016 he earned his medical degree and concurrent master’s degree in applied anatomy from Case Western Reserve University School of Medicine. He then completed his internal medicine internship at Santa Clara Valley Medical Center and neurology residency at the Mount Sinai Hospital in New York. During this time, he developed a passion for neurology education and served on graduate medical education committees for curricular development, trainee well-being and resilience, and quality improvement. For his work in medical education, he was selected as a Harvard Macy Institute Scholar in 2018 and was awarded the 2020 Institute for Medical Education House Staff Excellence in Teaching Award. He was also inducted as a house staff in the Alpha Omega Alpha honor society. He then went on to complete a neuromuscular medicine fellowship at Stanford prior to joining as faculty.


Jamie McDonald, MD, MSc
Clinical Assistant Professor
Neurology & Neurological Sciences

Dr. McDonald specializes in the diagnosis and treatment of multiple sclerosis and other demyelinating diseases, including neuromyelitis optica spectrum disorder (NMOSD) and myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD). Dr. McDonald also provides comprehensive neurological care to general neurology patients.

Dr. McDonald received the National MS Society’s Sylvia Lawry Physician Fellowship and completed her two-year clinical MS/neuroimmunology fellowship at Stanford Multiple Sclerosis Center. Prior to her MS fellowship, Dr. McDonald completed her adult neurology residency at the University of Utah. Dr. McDonald trained in clinical trial methodology as part of her master’s in epidemiology and clinical research and has an interest in disease biomarkers and clinical trials.


Zachary T. Roberts, MD
Clinical Assistant Professor
Neurology & Neurological Sciences

Dr. Roberts received his medical degree in 2017 from the Perelman School of Medicine at the University of Pennsylvania in Philadelphia, PA.  He remained at the University of Pennsylvania for his internship in Internal Medicine as well as his Neurology residency.  After completing his residency training, he moved to New York, NY to pursue two years of fellowship training in Epilepsy.  Dr. Roberts provides clinical care for general neurology patients, as well as patients with epilepsy.  As a Clinician Educator, he enjoys teaching fellows, residents, and medical students.


Zahra Sadat-Hossieny, MD
Clinical Assistant Professor
Neurology & Neurological Sciences

Dr. Sadat received her MD from The George Washington University School of Medicine. She spent two months during medical school in South America and obtained a certificate in global health. She completed her residency in Neurology at The Ohio State University and Fellowship in Epilepsy at Stanford University. She is passionate about providing cutting-edge, personalized and evidence-based care that is delivered with compassion. Her research focuses on developing therapeutics that optimize cognition and improve outcomes for patients with epilepsy and neurologic diseases.


Fanglin Zhang, MD, PhD
Clinical Assistant Professor
Neurology & Neurological Sciences

Dr. Zhang is a board-certified neurologist who practices in both comprehensive neurology and epilepsy. Before relocating to Stanford, she underwent neuroscience research training and then served as a research assistant professor in the Department of Neurology at Vanderbilt University Medical Center. She is the author of numerous peer-reviewed publications. Her passion in neurology has largely grown in her research work. She then pursued Neurology Residency training at the University of Miami, Miller school of Medicine/Jackson Memorial Hospital, followed by her fellowship training at UCLA.  

Her clinical interests encompass a broad range of acute and chronic neurological diseases, with a particular focus on intractable epilepsy and stroke care. In addition to providing patient-centered, high-quality care, she places great importance on building a strong alliance with her patients to overcome diseases and enhance their quality of life. As a clinician educator, she enjoys patient education and trainee education. Her current research interest includes clinical trials and large cohort studies on the relationship between seizures and acute stroke.