The Medicare Shared Savings Program (MSSP) final rule includes changes to the financial benchmark methodology that measures the gross savings or losses of an accountable care organization (ACO) under the MSSP. Four key elements of the financial benchmark methodology changed: agreement period length, regional fee-for-service (FFS) adjustment, risk adjustment, and trend.
In this paper, Milliman’s Jill Herbold, Cory Gusland, Charlie Mills, and Matt Kramer discuss these changes and important implications for Medicare ACOs. Each of these changes in the MSSP’s financial benchmark methodology will have significant implications for most ACOs. Given the increase in the agreement period length from three to five years, it is critical that ACOs assess how the final rule will affect their financial benchmarks and related strategies.