The Centers for Medicare & Medicaid Services (CMS) released its annual Shared Savings Fast Facts showing that over 500 Accountable Care Organizations (ACOs) are participating in the Shared Savings Program as of January 1, 2026. ACOs are groups of doctors, hospitals, and other health care providers who collaborate to give coordinated high-quality care to people with Medicare, focusing on delivering the right care at the right time, while avoiding unnecessary services and medical errors. The number of rural providers participating in ACOs has grown to more than 3,000 Rural Health Clinics and nearly 600 Critical Access Hospitals.