The goal of this presentation was to prioritize Milestones for resident education in population health, and identify gaps in materials for teaching and assessment. The Institute of Medicine has warned: “The traditional separation between primary health care providers and public health professionals is impeding greater success in meeting their shared goal of ensuring the health of populations.” The implementation of the Accountable Care Act expedites the nation’s need to bridge that divide. The ACGME has required elements of population health training through the Common Program Requirements addressing professionalism and systems-based practice, expecting residents to demonstrate “sensitivity and responsiveness to a diverse patient population,” and “incorporate… cost-awareness and risk-benefit analysis in… population-based care.” The Clinical Learning Environment Review program emphasizes additional components through its focus on Transitions in Care. The Centers for Disease Control (CDC), and the American Association of Medical Colleges (AAMC) awarded Duke a project to improve residents’ training in population health, building on the work of the Duke-CDC population health model, but modified to meet the needs of different specialties and programs. Listservs of program directors in family medicine, internal medicine, and pediatrics have been used to solicit collaborators. A “starter set” of Milestones has been created, and curricular and assessment materials are being mapped to them. This presentation significantly advanced this effort, adding the “wisdom from the crowd” of graduate medical education thought leaders representing an even broader audience. Session participants contributed in developing these population health Milestones, and shared materials and resources, such as those from the Practical Playbook, with opportunities for further engagement.