Long-Term Spending of Accountable Care Organizations in the Medicare Shared Savings Program
Question Did spending for patients attributed to accountable care organizations (ACOs) differ from other patients enrolled in Medicare in the first decade of the Medicare Shared Savings Program (MSSP)? Findings In this difference-in-differences study of more than 8 million patients, ACO formation was associated with a mean differential reduction of $142 (1.2%) in annual per-patient spending over…