Today, the U.S. Department of Health and Human Services (HHS), through the Centers for Medicare & Medicaid Services (CMS), announced a new voluntary model that empowers primary care providers in eligible Accountable Care Organizations (ACOs) to treat people with Medicare using innovative, team-based, person-centered proactive care. A key part of the Biden-Harris Administration’s efforts to further promote competition in health care, the ACO Primary Care Flex Model (ACO PC Flex Model) will provide a one-time advanced shared savings payment and monthly prospective primary care payments (PPCPs) to ACOs.