Quality of care review: recent experience in Arizona.

The Arizona Health Care Cost Containment System (AHCCCS) is an HMO-oriented Medicaid demonstration project serving approximately 170,000 persons throughout the State of Arizona. To assure that its members are receiving high quality care and because of the potentially adverse incentives of capitation, AHCCCS places particular emphasis on quality-of-care review. A key component of that review is the development of annual, statewide medical audits. In this article, we describe the nature and organization of medical care delivery under AHCCCS, outline the evolution of the annual medical audits, describe the most recent of these audits, and present and discuss the results.