Medicare Providers: Deadlines for Joining an Accountable Care Organization

To participate in an Accountable Care Organization (ACO) for performance year 2024, 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:

• Noon ET for the Medicare Shared Savings Program
• 11:59 PM ET for the ACO Realizing Equity, Access, and Community Health Model (ACO REACH)

Participant taxpayer-identification numbers can’t overlap multiple ACO participant lists. Resolve any overlaps by September 5.

More information:

• Application Types & Timeline

Email questions to SharedSavingsProgram@cms.hhs.gov or ACOREACH@cms.hhs.gov.