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Policy Snapshot

June 7, 2024

To participate in an Accountable Care Organization (ACO) for performance year 2025, work with an ACO to join their participant list. ACOs must submit their lists to the Centers for Medicare & Medicaid Services (CMS) by August 1 at:

Participant taxpayer-identification numbers can only appear on one ACO participant list. Resolve any overlaps by September 5.

More information: