ACO Assignment Improvement Act of 2025

HR 4773, the ACO Assignment Improvement Act of 2025, amends Medicare's Shared Savings Program rules to change how beneficiaries are assigned to Accountable Care Organizations (ACOs). It adds a new provision requiring ACOs to include primary care services provided by their professionals in beneficiary assignment calculations starting January 1, 2027. This directly affects Medicare beneficiaries enrolled in ACOs and the ACOs themselves, as it modifies the criteria used to determine which beneficiaries are counted toward an ACO's performance. The change aims to better align beneficiary assignments with primary care service delivery under the program.