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CMS continues to bring accountable care to more people with Medicare in 2026, expanding the benefits of high-quality, whole-person health care to achieve better health outcomes for millions of older Americans.
As of January 2026, 14.3 million Medicare beneficiaries are estimated to receive care coordinated by Accountable Care Organizations (ACOs), up from 13.7 million in 2025, representing a 4.4% increase. This includes patients whose health care providers are in Medicare Shared Savings Program (Shared Savings Program) ACOs and entities participating in Center for Medicare and Medicaid Innovation (CMS Innovation Center) accountable care models, as well as other CMS Innovation Center models focused on total cost of care, advanced primary care, and specialty care.
ACOs are groups of doctors, hospitals, and other health care providers who collaborate and provide coordinated, high-quality care to people with Medicare, and they are a critical tool to help Make America Healthy Again by supporting whole person care that addresses prevention, chronic illness and the root causes of disease.