What to Know Now About MassHealth ACOs
MassHealth introduced Accountable Care Organizations (ACOs) in 2018 as an option for most of its members under age 65. As of June 2023, over 1.3 million members – more than half of MassHealth’s total membership – are enrolled in one of 17 MassHealth ACOs.
This report was developed as a resource for stakeholders to help explain the key elements of MassHealth ACOs, including the two types, who they serve, and the services they provide. It includes information on the following:

