Jonathan Jaffery, M.D., M.S., M.M.M., is a faculty member in the Division of Nephrology within the Department of Medicine of the University of Wisconsin–Madison (UW). As chief population health officer at UW Health and president of the UW Health ACO, Dr. Jaffery provides strategic leadership for UW Health’s transformation toward value-based care. Dr. Jaffery works to ensure UW Health provides access to high-quality, affordable, equitable care and contributes to the health of the community. From 2008 to 2010, he served as the chief medical officer for the state of Wisconsin’s Medicaid program. As a 2010–2011 Robert Wood Johnson Foundation Health Policy Fellow, Dr. Jaffery worked for the Senate Committee on Finance on a variety of issues relating to delivery-system and payment reform, and he continues to focus on these areas in his UW Health leadership roles. A board-certified nephrologist, Dr. Jaffery is a member of numerous professional organizations, including the American Association for Physician Leadership and the American Society of Nephrology, and he is a fellow of the American College of Physicians. Dr. Jaffery has graduate degrees from the University of Wisconsin School of Medicine and Public Health and the University of Southern California Marshall School of Business.