This entry provides an overview of the state of health care in the United States. Service delivery problems such as access and affordability issues are examined, and health care disparities and the populations affected are identified. A discussion of two primary government-sponsored health care programs—Title XVIII (Medicare) and Title XIX (Medicaid), and the Patient Protection and Affordable Health Care Act—are reviewed along with various health care programs and major existing service delivery systems. Ethical conflicts in providing health care, and new directions and challenges are discussed, along with future roles for social workers.