Program Leadership

Sonny Lee, MD, FAAP, FACP
Sonny Lee, MD, FAAP, FACP Program Director

Dr. Lee received his M.D. from New York Medical College. After completing internship and residency in the Combined Internal Medicine-Pediatrics (Med-Peds) Residency at Loma Linda University, he stayed on as faculty. He has been Board Certified in both Internal Medicine and Pediatrics since 2003 and is participating in the Maintenance of Certification for both the American Board of Internal Medicine as well as the American Board of Pediatrics. He has been involved in Graduate and Undergraduate Medical Education since completing residency in 2003 and has served as Associate Program Director and Program Director of the Med-Peds Residency prior to assuming the role of Program Director of the Internal Medicine Residency Program at Loma Linda University. He remains passionate about resident education and, in particular, relishes assisting residents achieve whatever career goal they have in mind. He is married with two daughters. He loves sports of all kinds (watching, playing) but particularly loves watching his daughters play softball and soccer.

We have incredibly talented leadership at each site with a passion for resident education: Van Geslani, MD, Shawn Koh, MD, and, Minho Yu, DO.

Van Geslani, MD
Van Geslani, MDAssociate Program Director (LLUMC)

Dr. Geslani completed his undergraduate work at Pacific Union College with a degree in Behavioral Science and medical school at Loma Linda University. He also completed his residency in internal medicine at Loma Linda University with an additional year as Chief Resident at Loma Linda University Medical Center.

He has been a member of our faculty since 2011 and is currently an Assistant Professor of Medicine. Dr. Geslani has a passion for teaching and also serves as a teaching attending on the inpatient wards at the University. His areas of interest are hospital medicine, evaluation, feedback, and professionalism.

Shawn Koh, MD
Shawn Koh, MD Associate Program Director (LLVAH)

Dr. Koh graduated from La Sierra University in 2004 with a degree in biology and received his MD from Loma Linda University in 2008. A huge fan of the Inland Empire, he completed his residency training at Loma Linda University Medical Center and served an additional year as the ambulatory chief resident at the Loma Linda Veterans Hospital.

He has been serving as a faculty member since 2011 and was just appointed as Associate Program Director in 2016. Dr. Koh is passionate about primary care and holistic medicine, and he currently serves as director of the primary care track and the resident coaching program.

Minho Yu, DO
Minho Yu, DO Associate Program Director (RUHSMC)

Dr. Yu received his Bachelors degree from UCSD, went on to medical school at the Western University of Health Sciences, in Pomona, CA. He was a star resident in internal medicine program at Loma Linda, and later served as a chief medical resident at Riverside University Health Systems Medical Center during the 2007-2008 academic year. He has been an attending physician there since that time.

In 2011, he was appointed to the APD position and has served in that capacity very well. Dr. Yu is dedicated to the development of residents as skilled physicians, and emphasizes evidence-based care. Our office receives much unsolicited praise for his teaching ability as an attending on the RUHSMC ward service. Additionally, he leads teaching sessions at the Simulation Lab on campus.


Over 100 full-time faculty in the Department of Medicine are involved in the teaching program. All faculty members at each of our three training facilities have faculty appointments at Loma Linda University School of Medicine. The staff includes general internists and internists in the subspecialties of adolescent medicine, allergy, cardiology, clinical pharmacology, critical care, endocrinology, gastroenterology, geriatrics, hematology, infectious disease, intensive care medicine, nephrology, oncology, pulmonary medicine and rheumatology.