Zirui Song, M.D., Ph.D. is an Associate Professor of Health Care Policy and Medicine at Harvard Medical School and a primary care physician at Massachusetts General Hospital, where he also practices on the inpatient medicine teaching service. His research focuses on the health and economic implications of incentives and interventions that affect the health care system. This has included payment reform, Medicare Advantage, employer programs, corporate acquisitions of hospitals and physicians, and public health issues.

Dr. Song directs the Health Policy track in the MGH Internal Medicine Residency Program and serves as faculty Director of Research in the HMS Center for Primary Care. He leads the Health Policy courses for Harvard Medical and Dental students and Mass General Brigham medicine residents. He has also taught HMS Executive Education courses for employers and health care leaders from other countries. He advises students, residents, and fellows in their research.

Dr. Song worked on Medicare payment policy at the U.S. Department of Health and Human Services and provider payment at the Massachusetts Health Policy Commission. He also worked at the Brookings Institution and served on committees for NASEM. He is an Associate Editor of JAMA Health Forum.