Ellis M. "Mac" Knight, MD, is senior vice president and chief medical officer of Coker Group, where he oversees Coker's hospital operations and strategic services division. In addition, he has led the development of GlidePath Health, a comprehensive suite of services designed to operationalize clinically integrated organizations such as ACOs. He continues to practice as an internist and hospitalist on a part-time basis.Prior to joining Coker, Dr. Knight served in various roles at Palmetto Health in Columbia, South Carolina. After 12 years in private medical practice, he started the first hospital medicine group in South Carolina. He helped to grow and manage Palmetto Health's more than 200 employed physicians. He served as the senior vice president of ambulatory services with responsibility for all outpatient activities at this three-hospital system. In 2009, he led the development of and served as the executive medical director for the Palmetto Health Quality Collaborative, Palmetto Health's unique and very successful clinical integration program.He holds a clinical faculty appointment, as an associate professor of medicine, with the University of South Carolina School of Medicine and is a fellow of the American College of Physicians, American College of Healthcare Executives and the Society of Hospital Medicine. Dr. Knight is a major contributor to Physician Alignment: Ensuring Success with Negotiations, Payment Systems, and Education of Stakeholders (©2014, American Association for Physician Leadership).