Bridget K. Larson, M.S., is director, Health Policy Implementation at The Dartmouth Institute for Health Policy and Clinical Practice. Her work focuses on advancing payment and delivery system reform to improve population health. She leads the implementation and evaluation of the Accountable Care Organization (ACO) model through close collaboration with five national ACO pilot sites and the Brookings Institution. Previously, Ms. Larson worked at Dana-Farber Cancer Institute on developing best practice models for a new ambulatory cancer center. She has also held a variety of roles in the private sector in policy, regulatory affairs, and process development. Ms. Larson holds a master of science degree in health policy and management from the Harvard School of Public Health.