David B. Nash, MD MBA, is a board-certified internist who is internationally recognized for his work in public accountability for outcomes, physician leadership development, and quality-of-care improvement. He is the Founding Dean Emeritus of the Jefferson College of Population Health and now serves as the Dr. Raymond C. and Doris N. Grandon Professor of Health Policy. Dr. Nash is regularly on Modern Healthcare's list of Most Powerful Persons in Healthcare and is a principal faculty member for quality-of-care programming for the American Association of Physician Leaders. Dr. Nash has authored more than 100 peer-reviewed articles and edited 23 books, including Connecting with the New Healthcare Consumer, The Quality Solution, Demand Better, and most recently Population Health: Creating a Culture of Wellness (3rd edition).