Dr. Baron, board certified in internal medicine and geriatrics, is President and Chief Executive Officer of the American Board of Internal Medicine and the ABIM Foundation. Dr. Baron was a former Chair of the ABIM Board of Directors and served on the ABIM Foundation Board of Trustees.
Dr. Baron practiced general internal medicine and geriatrics for almost 30 years at Greenhouse Internists, P.C., located in Philadelphia. Greenhouse was a pioneer in the comprehensive adoption of electronic health records in the small-practice environment. From 2011 to 2013, Dr. Baron served as Group Director of Seamless Care Models at the Centers for Medicare & Medicaid Services (CMS) Innovation Center, where he led efforts related to accountable care organizations and primary care. Until joining the federal government, Dr. Baron served on the Board of the National Quality Forum as well as on the Standards Committee of NCQA.
While in active practice, Dr. Baron served as Chief Medical Officer of Health Partners, a not-for-profit Medicaid HMO set up by four teaching hospitals in Philadelphia, from 1988 to 1996. He is a member of the Aspen Institute Health Strategy Group.
Dr. Baron received an English degree from Harvard College and his medical degree from Yale University. He completed house staff training at New York University-Bellevue Medical Center and served a three-year obligation in the National Health Service Corps in rural Tennessee.