The tracks of the Medicare ACO model vary greatly, but have been steadily gaining in prevalence since their launch in 2011. Despite the steady increase in ACO participation, most groups are staying at the Track 1 level. In fact, in 2018, 460 of the 649 ACOs existed at the Track 1 level.
In a new proposal titled “Pathways to Success,” the Centers for Medicare & Medicaid Services (CMS) has laid out a modified set of participation options for ACOs (accountable care organizations) in the Medicare Shared Savings Program (MSSP). The proposed participation options would no longer include an “upside-only” risk model; instead, ACOs would be required to select one of two tracks, both of which ultimately include some downside risk.