The Bureau of Primary Health Care, a division of the Health Resources and Services Administration of the Department of Health and Human Services, Public Health Service, commissioned a study to evaluate the performance of community health centers (CHCs) under managed care. This article reports on the findings of the bureau's study, which examined the managed performance of seven CHCs that contract with health maintenance organizations (HMOs). The experiences of these centers can provide valuable insights for other CHCs and the HMOs with which they partner. Policy makers contemplating the role of CHCs In managed care will also benefit from these findings.