What is an aco
An ACO is a legal entity comprised of doctors, hospitals, or other health care providers. ACO participants (physicians) agree to work together to coordinate care and to become responsible for Medicare Fee-for-Service (FFS) beneficiaries (patients). Patients are attributed to the ACO by the Centers for Medicare and Medicaid Services (CMS). Patients do not join ACOs, but are attributed to an ACO if they receive the majority (or plurality) of their primary care services from an ACO participant. According to CMS, the goal of the ACO is to provide better care for individuals, better health for populations, and lower health care expenditures.