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Medicare Pioneer ACO Program
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Medicare Pioneer ACO Program

About the CMS Pioneer ACO Model:

The Centers for Medicare & Medicaid Services (CMS) is committed to achieving the three-part aim of better care for individuals, better health for populations, and reduced expenditures for Medicare, Medicaid, and Children's Health Insurance Program beneficiaries. One potential mechanism for achieving this goal is for CMS to partner with groups of health care providers in an Accountable Care Organization (ACO) who accept joint responsibility for the cost and quality of care outcomes for a specified group of patients.

Thirty of the nation's top organizations will be chosen as Pioneer ACOs. The Pioneer ACO program encourages integration of care, quality improvement, and cost savings through care coordination and reduction in duplicate services. Several objectives underlie CMMI's overall approach to testing accountable care organizations:
  • Promote changes in the delivery of care from fragmented care to coordinated care systems as part of broader efforts to improve care integration, such as initiatives on medical homes and bundled payments 
  • Promote effective engagement with, and protections for, beneficiaries 
  • Protect the Medicare Trust Funds while finding new ways of delivering care that will decrease expenditures over time 
  • Learn what it takes for ACOs to most effectively deliver the three-part aim of better care for individuals, better health for populations, and lower growth in expenditures for the Medicare fee-for-service population 
  • Develop close working partnerships with providers, and
  • Encourage a diverse group of ACOs to commit to delivering the three-part aim

To find out more information about the Pioneer ACO Model, please visit