William J. Kassler, MD, MPH, FACP

Deputy Chief Health Officer, Lead Population Health Officer

Dr. Kassler has spent his careerworking at the intersection of clinical care and population health;as a practicing primary care internist, epidemiologist, health services researcher, public sector administratorand health policy expert. Dr.Kassler currently works at IBM Watson Health as Deputy Chief Health Officer and Lead Health Officer for Population Health, using big data, advanced analytics and AI to tackle the world’s most pressing health challenges. Prior to joining Watson Health, he served as Chief Medical Officerfor the New England Regionof the Centers for Medicare and Medicaid Services(CMS), and was a founding member in the CMS Innovation Center creatingvalue-based purchasing initiatives to improve population health. Before that, he served as the State Health Officer for New Hampshire Department of Health and Human Services, with leadership and administrative rolesin public health, socialservicesand Medicaid. Dr.Kassler started his career at the Centers for Disease Control and Prevention (CDC) as an EIS officer, later serving as a medical epidemiologist, Branch Chief for Health Services Research and Evaluation, and as Senior Advisor for health policy.He received his MD from the University of Massachusetts Medical School, an MS in nutrition from Case Western Reserve University, an MPH from Berkeley. Hecompleted a primary care internal medicine residency at Brown, and was a Robert Wood Johnson Clinical Scholar at the University of California, San Francisco. Dr Kassler has been recognized with numerous awards from the United States Public Health Service, including the Surgeon General’s Meritorious Service Award. He is recipient of the NH March of Dimes Physician Leadership Award, and the Bi-State Primary Care Association President’s Award. Heis a practicing internist at a Federally Qualified Health Center, and past president of the New Hampshire Medical Society.