His research focuses on changes in health care spending and quality under global payment, the impact of Medicare fee policies on spending and physician behavior, and the economics of competitive bidding in Medicare Advantage. Dr. Song has worked in the U.S. Department of Health and Human Services and served as a Visiting Fellow at the Health Policy Commission in Massachusetts. He received his M.D. from Harvard Medical School magna cum laude and his Ph.D. in Health Policy (Economics) from Harvard University, where he was a fellow in Aging and Health Economics at the National Bureau of Economic Research. He completed his residency training at Massachusetts General Hospital.