Silicon Valley

Rex Chiu, MD
Internal Medicine

Dr. Chiu completed his undergraduate and medical degrees at Brown University before earning a master’s degree at Harvard University. After completing his residency at New York Hospital–Cornell Medical Center, Dr. Chiu joined the faculty at Stanford University, where he continues to teach in the School of Medicine.

Erika Drazan, MD
Pediatric Medicine

Dr. Erika Drazan earned her undergraduate degree from Stanford University before completing medical school at UCLA Medical School. Raised in sunny Southern California, she spent her childhood years in the Pacific Palisades before moving up to the Bay Area to conduct her Pediatric training at UCSF. Prior to Private Medical, Dr. Drazan practiced for sixteen years at Palo Alto Medical Foundation. Dr. Drazan is passionate about patient care and protecting children’s health in a world with a changing climate. She lives in Menlo Park with her husband and her two teenage children and enjoys running, hiking, skiing and yoga.

Kellen Glinder, MD
Pediatric Medicine

Dr. Glinder completed his medical degree at Dartmouth Medical School and his residency at the University of Vermont. Prior to joining Private Medical, he was head of the asthma committee and chair of the pediatrics department at The Palo Alto Medical Foundation. Dr. Glinder is also an adjunct assistant professor at Stanford University.

Sally Greenwald, MD
Gynecology Specialist in Residence

Dr. Sally Greenwald completed her residency in Obstetrics and Gynecology at the University of California, San Francisco. Subsequently Dr. Greenwald established a successful practice with Stanford Healthcare, where she offered comprehensive clinical care and served as an adjunct clinical professor at Stanford Medical School. Dr. Greenwald’s areas of interest and expertise in medicine include working with adolescents to establish a positive understanding of reproductive health, preconception counseling, and collaborating with women to understand what is happening behind their symptoms.

Amy Levin, MD
Internal Medicine

Dr. Amy Levin studied English literature at Cornell University before earning her medical degree at Yale University and a master’s degree at the Harvard School of Public Health. She believes in a humanistic and data-driven approach to medicine, and enjoys the process of shared decision making with her patients. She completed her internal medicine residency at UCSF, and practiced adult medicine for 17 years at the Palo Alto Medical Foundation.

Justin Lotfi, MD
Internal Medicine

Dr. Justin Lotfi studied Biological Sciences at UC Irvine before earning his medical degree at UC Davis. After completing his internal medicine residency at Stanford University, he joined the primary care faculty at Stanford Healthcare, most recently within their Concierge and Executive Health Program. He has a special interest in collaborating to solve complex medical problems, bringing expertise from residency training in both internal medicine and psychiatry. Dr. Lotfi looks forward to thinking critically about each patient and spending ample time reading and researching on their behalf. On the weekends you will find him enjoying a long ride on his road bike or hiking with his wife, daughter, and goldendoodle.

Leslie Sheu, MD
Internal Medicine

Dr. Leslie Sheu earned her bachelor’s degree at UC Berkeley and medical degree at UCSF. She stayed at UCSF for internship and residency, and served as a chief resident prior to taking on a faculty position. During her six years on faculty at UCSF, in addition to patient care, she held various teaching, mentoring, and educational leadership roles in the School of Medicine and the Department of Medicine. Dr. Sheu derives great fulfillment from fostering meaningful relationships with her patients and earning their trust. She lives in San Francisco with her husband and preschool-aged daughter.

Natalie Walsh, ND
Naturopathic Medicine

Dr. Walsh joined Private Medical from a busy naturopathic primary-care practice in Seattle. She received her doctorate in naturopathic medicine from Seattle’s Bastyr University, where she also completed a postgraduate residency program.