Melissa Sandoval, MD

Melissa Sandoval, MD, is a physician for Circle the City. She received a Doctor of Medicine degree from the University of California, San Francisco in 2004. Dr. Sandoval completed her internship and residency in Internal Medicine at the University of California, Los Angeles in 2007 and is Board Certified by the American Board of Internal Medicine. Dr. Sandoval is the immediate past Chief Medical Officer of Circle the City, a position she held for 5 ½ years. Prior to serving as Chief Medical Officer, Dr. Sandoval served as the Medical Director for Circle the City’s first Medical Respite Center for almost 3 years. She holds faculty positions with AT Still University School of Osteopathic Medicine in Arizona, University of Arizona College of Medicine-Phoenix as well as Creighton University School of Medicine, teaching rotations in homeless specialty healthcare through Circle the City’s Medical Respite Centers. She has received commendations for excellence in teaching of medical students. Dr. Sandoval has always had a passion for working with the medically underserved and has sought opportunities throughout her training and career to do so. She has served individuals with criminal justice system involvement and those experiencing homelessness since 2010. She has presented at National Healthcare for the Homeless Conferences and Medical Respite Training Symposiums on end-of-life care for persons experiencing homelessness. She is fluent in English.

Douglas White, MD

Douglas White, MD, is an emergency medicine physician at Alameda Health System – Highland Hospital in Oakland, California. Since 2004, he has advocated for routine HIV screening in US emergency departments through a platform of implementation science research, expert guidance, and advocacy. Dr. White’s contributions include the early integration of opt-out universal HIV screening into standard ED care, the use electronic health record algorithms to support screening processes, and the delivery of rapid antiretroviral therapy for ED patients newly-diagnosed with HIV.

Jason Zucker, MD

Jason Zucker, MD, is an Assistant Professor of Medicine in the Division of Infectious Diseases at Columbia University Medical Center and Assistant Medical Director of the New York City STD Prevention Training Center. Dr. Zucker trained as a combined adult and pediatric infectious diseases physician and is an experienced HIV, HIV prevention, and sexual health care provider. His research focuses on ways to optimize engagement in the sexual health cascade of care.

Jesse Ehrenfeld, MD, MPH

Jesse M. Ehrenfeld, MD, MPH, was inaugurated as president of the American Medical Association in June 2023. He is a senior associate dean, tenured professor of anesthesiology and director of the “Advancing a Healthier Wisconsin Endowment” at the Medical College of Wisconsin. He was elected to the American Medical Association Board of Trustees in 2014. Dr. Ehrenfeld divides his time among clinical practice, teaching, research and directing a $560-million statewide health philanthropy. He also has an appointment as an adjunct professor of anesthesiology and health policy at Vanderbilt University in Nashville, Tenn., and as an adjunct professor of surgery at the Uniformed Services University of the Health Sciences in Bethesda, Md. Dr. Ehrenfeld is a consultant to the World Health Organization Digital Health Technical Advisory Group and previously served as co-chair of the Navy Surgeon General’s Taskforce on Personalized and Digital Medicine and as a special advisor to the 20th U.S. Surgeon General.