# Medicare Program; Medicare Shared Savings Program; Accountable Care Organizations-Revised Benchmark Rebasing Methodology, Facilitating Transition to Performance-Based Risk, and Administrative Finality of Financial Calculations
> **Centers for Medicare and Medicaid Services** · Final rule. · Published 2016-06-10 · Effective 2016-08-09 · 81 FR 37950
## Document
- **Document number:** 2016-13651
- **Category:** medicare
- **Sub-agency:** Centers for Medicare and Medicaid Services
- **Federal Register citation:** 81 FR 37950
- **CFR reference:** 42 CFR 425
- **Publication date:** 2016-06-10
- **Effective date:** 2016-08-09
- **HHS docket:** CMS-1644-F
## Abstract

Under the Medicare Shared Savings Program (Shared Savings Program), providers of services and suppliers that participate in an Accountable Care Organization (ACO) continue to receive traditional Medicare fee-for-service (FFS) payments under Parts A and B, but the ACO may be eligible to receive a shared savings payment if it meets specified quality and savings requirements. This final rule addresses changes to the Shared Savings Program, including: Modifications to the program's benchmarking methodology, when resetting (rebasing) the ACO's benchmark for a second or subsequent agreement period, to encourage ACOs' continued investment in care coordination and quality improvement; an alternative participation option to encourage ACOs to enter performance-based risk arrangements earlier in their participation under the program; and policies for reopening of payment determinations to make corrections after financial calculations have been performed and ACO shared savings and shared losses for a performance year have been determined.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2016/06/10/2016-13651/medicare-program-medicare-shared-savings-program-accountable-care-organizations-revised-benchmark)
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