Mark McClellan, MD, PhD, is Director and Robert J. Margolis, M.D., Professor of Business, Medicine and Health Policy at the Margolis Center for Health Policy at Duke University. He is a physician-economist who focuses on quality and value in health care, including payment reform, real-world evidence and more effective drug and device innovation. He is former administrator of the Centers for Medicare & Medicaid Services and former commissioner of the U.S. Food and Drug Administration, where he developed and implemented major reforms in health policy. He is an independent director on the boards of Johnson & Johnson, Cigna, Alignment Health Care and Seer, and is co-chair of the Accountable Care Learning Collaborative and the Guiding Committee for the Health Care Payment Learning and Action Network.