David Torchiana, MD, Partners HealthCare CEO, plans to retire at the end of April 2019 after serving as the head of the largest Massachusetts health system since 2015. Dr. Torchiana oversees the largest physician group practice in New England, representing more than 2,000 physicians. Dr. Torchiana graduated from Yale College in 1976 and Harvard Medical School in 1981. He completed residencies in general surgery and cardiothoracic surgery at Massachusetts General Hospital (MGH) before joining the Department of Surgery in 1989. Dr. Torchiana became chief of cardiac surgery at MGH in 1998 and chief executive officer of the MGPO in 2003. He is also an associate professor of surgery at Harvard Medical School.