An Accountable Care Organization (ACO), according to the Centers for Medicare & Medicaid Services (CMS) “is an organization of health care providers that agrees to be accountable for the quality, cost, and overall care of Medicare beneficiaries who are enrolled in the traditional fee-for-service program who are assigned to it.” Under the health care reform legislation passed in March 2010, the Medicare program is authorized to contract with ACOs.

Synonyms: Accountable Care Organization

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