Lawrence Casalino, M.D., Ph.D., is the Livingston Farrand Professor of Public Health and chief of the Division of Health Policy and Economics in the Weill Cornell Medical School Department of Population Health Sciences. His research focuses on the intended and unintended effects of public and private policies on the types of provider organizations that exist, on the processes they use to provide care, and on the quality and cost of care, as well as the impact of policies and organizational processes on socioeconomic and racial/ethnic disparities. Dr. Casalino has served as a senior advisor to the director of the Agency for Healthcare Research and Quality and as chair of the AcademyHealth annual meeting. He currently serves on the Congressional Budget Office’s Panel of Health Advisors. He was a primary care physician in private practice for 20 years. He received his M.D. from the University of California, San Francisco, and his Ph.D. in health services research from the University of California, Berkeley.