Program Leadership

Ronald Witteles, MD

Program Director

Dr. Witteles (Program Director) graduated from The University of Chicago Pritzker School of Medicine, and he completed his Internal Medicine residency training, chief residency, and Cardiology fellowship training at Stanford. He is an active member of the Heart Failure faculty, and frequently attends in the CCU. He serves as Co-Director of the Stanford Amyloid Center and runs an active clinical More  research program in amyloidosis, cardiac complications of cancer therapy, and sarcoidosis. Dr. Witteles is the recipient of a host of clinical teaching awards, and housestaff education is his greatest passion.


Wendy Cáceres, MD

Associate Program Director

Dr. Cáceres (Associate Program Director) earned her medical degree and completed her Internal Medicine residency training at Stanford University School of Medicine. She is the Co-Medical Director of the Pacific Free Clinic in San Jose, CA. Her scholarly work focuses on medical education with a focus on primary care, as well as cultural competency, and unconscious bias in medicine. Dr. Cáceres is passionate about increasing diversity in medicine as she believes academic medicine is vital to the future of healthcare, and should be both diverse and inclusive. 


Shriram Nallamshetty, MD

Associate Program Director-VA

Dr. Nallamshetty (Associate Program Director at the Palo Alto VA) graduated from Duke University School of Medicine and completed his Internal Medicine residency at Stanford. Following a chief resident year at Stanford, he completed a fellowship in Cardiovascular Medicine at Massachusetts General Hospital and post-doctoral research training at the Brigham and Women’s Hospital in Boston. Dr. More  Nallamshetty’s clinical and research interests center on the metabolic underpinnings of cardiovascular disease. He currently attends in Cardiology and General Medicine at the Palo Alto VA and is actively involved in the clinical and research efforts in the Stanford South Asian Translational Heart Initiative (SSATHI).


Poonam Hosamani, MD

Associate Program Director

Dr. Hosamani (Associate Program Director) graduated from Northwestern Medical School and completed her Internal Medicine residency training at the Weill-Cornell Medical Center. She joined the Division of Hospital Medicine at Stanford in 2012 and attends on the Stanford general medicine wards. Dr. Hosamani is passionate about medical education and is the course director for the first-year Practice of Medicine course for Stanford School of Medicine students. She also co-directs the Transition to Clerkships course and is an associate clerkship director for the Internal Medicine core clerkship. Her scholarly work focuses on bedside medicine through the Bedside Medicine group founded by Dr. Verghese.

Angela Rogers, MD

Associate Program Director

Dr. Rogers (Associate Program Director) graduated from Harvard Medical School, and completed her internal medicine residency at the Brigham and Women’s Hospital and Pulmonary and Critical Care fellowship in the Harvard program.  She moved to Stanford as an Assistant Professor in 2013.  She is focused on critical care education for both residents and fellows, and works on the More Medicine side of the Stanford Medicine-Anesthesia combined residency program.  Her research focus is on using genomics to identify novel biomarkers and improve phenotyping in sepsis and ARDS.


Cybele Renault, MD, DTM&H

Program Lead in Global Health

Dr. Renault (Program Lead in Global Health) completed medical school and her Internal Medicine residency at The University of Chicago Pritzker School of Medicine, and after spending a year as Chief Resident at Cook County Hospital in Chicago, she came to Stanford for her Infectious Diseases fellowship. Dr. Renault has a particular interest in working with underserved populations with a focus More  on tropical disease and global health, where she has experience practicing medicine and teaching in Nepal, India, Thailand, Burkina Faso, Uganda and Zimbabwe. At Stanford, she is the primary attending physician on the inpatient Infectious Diseases consult service at the Palo Alto VA and is intimately involved with the Stanford Center for Innovation in Global Health (CIGH). Dr. Renault is Site Director for the  Johnson & Johnson rotation at Mulago Hospital in Uganda, and is Co-Director of the annual Stanford 2-week Intensive Global Health Course. She serves as a mentor and program point of contact for our Global Health Track residents, as well as for all of our residents interested in working overseas during their residency.


Robert Harrington, MD

Chair, Department of Medicine

Dr. Robert Harrington is the Arthur L. Bloomfield Professor of Medicine and Chair of the Department of Medicine at Stanford University. Dr. Harrington was previously the director of the Duke Clinical Research Institute (DCRI). His research interests include antithrombotic therapies in acute ischemic heart disease, mechanisms of disease of the acute coronary syndromes, risk stratification More in acute coronary syndromes, and clinical trial methodology. He has authored more than 400 peer-reviewed manuscripts, reviews, book chapters, and editorials. He is an associate editor of the American Heart Journal and an editorial board member for JACC. He recently served as a member and the chair of the Food and Drug Administration Cardiovascular and Renal Drugs Advisory Committee. He is a member of the Board or Trustees for the American College of Cardiology and he served as Chairman of the 2013 and 2014 American Heart Association Scientific Sessions.


Abraham Verghese, MD

Vice Chair for Education

Dr. Verghese graduated from Madras University Medicine, India, and he completed his residency in Internal Medicine and Fellowship at East Tennessee State University Medicine. He is an internationally popular author; his most recent novel, Cutting for Stone topped the New York Times bestseller list for over two years. He is a prominent voice in medicine with a uniquely More  humanistic view of the future of healthcare, marrying technological innovation with the traditional doctor-patient relationship. He pioneered the Stanford Medicine 25, a collection of technique-dependent bedside skills which all Stanford residents learn. Dr. Verghese is a 2014 recipient of the Heinz Award for Arts and Humanities.


2019-2020 Chief Residents

Amy Rogers Filsoof, MD

Chief Resident

Amy Rogers received a B.A. in Neuroscience from USC, graduating magna cum laude in 2012. She then enrolled at Northwestern University for medical school, earning her M.D. in 2016. While at Northwestern, Amy quickly emerged as a class leader, chairing Northwestern’s Student Committee on Global Health and serving as Class President of the School of Medicine during her fourth year. During medical school Amy worked with the Cochrane Heart Group as a medical student, training in Cochrane Collaboration methodology. She matched with Stanford in 2016.

As a resident, Amy’s clinical skills and leadership potential quickly became apparent. She has been elected by her class peers three times to be Class Representative on the Committee on Residency Reform, and was elected by the Stanford housestaff at large to be a full member of the Graduate Medical Education Committee. After her Chief Resident year, Amy plans a career in Primary Care.

Surbhi Singhal, MD

Chief Resident

Surbhi Singhal received a B.S. in Genetics, Cell Biology, and Development, graduating summa cum laude from the University of Minnesota in 2012. She then enrolled in medical school at the University of Wisconsin, where she was inducted into the Alpha Omega Alpha honors society and awarded the John Kimberly Curtis award for excellence in clinical medicine. She earned her M.D. with Honors in Research and Distinction in Public Health in 2016.

At Stanford, Surbhi has demonstrated a passion for medical education, and was awarded the medical student nominated Arnold P. Gold Foundation’s Humanism and Excellence in Teaching Award and the Stanford Department of Medicine Excellence in Teaching Award. Surbhi’s current research is on the capture of patient-reported outcomes during cancer treatment, and she plans a career as a clinician and health services researcher in Hematology and Oncology.

Rebecca Tisdale, MD

Chief Resident

Becca Tisdale received a B.A. with distinction in Human Biology from Stanford in 2009. After a year working as a Human Biology course associate teaching in the core course sequence for the major, she completed a master of public administration (MPA) joint degree from Sciences Po, Paris and the London School of Economics. She then matriculated at Columbia University College of Physicians and Surgeons for medical school, where she was active in global health activities, researching multidisciplinary teams in HIV care in Ethiopia and serving on the board of the student international health organization. She distinguished herself clinically and was elected Alpha Omega Alpha as well as given the Drs. Robert A. Savitt and George H. McCormack Award for medical skill, consideration, understanding, and compassion and the Glasgow-Rubin Achievement Award for women graduates in the top 10% of the graduating class.

 More As a global health track resident at Stanford, Becca spent time working in Rwanda through the Johnson and Johnson program and participated in the inaugural Women Leaders in Global Health conferences at Stanford and in London. Becca was also a winner of the peer-chosen Julian Wolfsohn Award, given to two residents per class each year who demonstrate outstanding performance in clinical judgment, leadership, teaching, and kindness. After her chief resident year, Becca will begin a two-year health services research fellowship at Stanford and the Palo Alto VA with plans to ultimately complete a clinical cardiology fellowship and pursue research and clinical work in cardiology and health systems, particularly as applied to global health.