Launching accountable care organizations--the proposed rule for the Medicare Shared Savings Program.

A common criticism of U.S. health care is the fragmented nature of its payment and delivery systems. Because in many settings no single group of participants — physicians, hospitals, public or private payers, or employers — takes full responsibility for guiding the health of a patient or community, care is distributed across many sites, and integration among them may be deficient. Fragmentation leads to waste and duplication — and unnecessarily high costs. Section 3022 of the Affordable Care Act (ACA) establishes the Medicare Shared Savings Program for accountable care organizations (ACOs) as a potential solution.1 The creation of ACOs is . . .