In the Medicare Shared Savings Program (MSSP), participating accountable care organizations (ACOs) are eligible for shared-savings bonuses from the Centers for Medicare & Medicaid Services (CMS) if spending for their patient population falls below a financial benchmark. In 2013, the first full year of the MSSP, modest spending reductions were entirely offset by bonus payments.1 Program savings beyond 2013 have not been formally evaluated.
McWilliams JM. Changes in Medicare Shared Savings Program Savings From 2013 to 2014. JAMA. 2016;316(16):1711-1713. doi:10.1001/jama.2016.12049