Lack of sufficient accessible community-based health care services for individuals with developmental disabilities has led to disparities in health outcomes and an overreliance on expensive models of care delivered in hospitals and other safety net or state-subsidized providers. A functioning community-based primary health care model, with an integrated care management component, functioning in the general health care practice marketplace, is described and shown to address recent Surgeon General recommendations as well as evaluative criteria for availability, affordability, acceptability, and appropriateness of care. The model functions in both fee-for-service and managed care environments, including Medicaid managed care for individuals with developmental disabilities. Experience shows this model to be both scalable and replicable, resulting in positive health outcomes and increased patient satisfaction.