Physician participation in accountable care organizations (ACOs) reached a milestone in 2018. More than half of physicians reported their practice was part of an ACO, less than a decade after the payment model debuted as part of the Affordable Care Act enacted in 2010. “Overall, 53.8% of physicians reported participation in at least one ACO type in 2018, up from 44.0% in 2016,” according to a recently released AMA research paper. By ACO type, 38.2% of physicians belonged to a Medicare ACO, 26.3% to a Medicaid ACO, and 39.0% to a commercial ACO. Data was also collected on medical home participation, with 31.9% of physicians reported working in a practice that belonged to one. This and other related data and analysis was presented in the AMA Policy Research Perspective report, “Payment and Delivery in 2018”.
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