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Improved patient experience, population health, and reduced cost of care for patients with obesity and other chronic diseases will not be achieved by clinical interventions alone. We offer here a new iteration of the Chronic Care Model that integrates clinical and community systems to address chronic diseases. Obesity contributes substantially to cardiovascular disease, type 2 diabetes mellitus, and cancer. Dietary and physical activity interventions will prevent, mitigate, and treat obesity and its related diseases. Challenges with the implementation of this model include provider training, the need to provide incentives for health systems to move beyond clinical care to link with community systems, and addressing the multiple elements necessary for integration within clinical care and with social systems. The Affordable Care Act, with its emphasis on prevention and new systems for care delivery, provides support for innovative strategies such as those proposed here., (Project HOPE—The People-to-People Health Foundation, Inc.)

This paper explores the impact of public policy on local health care systems in a representative sample of twelve U.S. communities. Site visits conducted in those communities suggest that public policy is an important force that shapes health system change, for instance, by establishing the underlying "rules of the game" for private and public actors and by influencing the decisions of national and regional entities to enter and exit local markets. These dynamics are explored through a discussion of several key policy areas, including Medicaid and Medicare managed care programs, state regulation of managed care, regulation of providers' rates, certificate-of-need rules, and oversight of conversions from nonprofit to for-profit status.