CMS determines ASM participant eligibility using the following criteria. A clinician must meet all four to be subject to mandatory participation in a given performance ye

ASM selection isn’t a one-time event—it’s a data-driven, multi-year process tied to historical claims and episode volume.

CMS finalized its proposal for a new test model launching in 2027: the Ambulatory Specialty Model (ASM).

CMS has finalized the Ambulatory Specialty Model (ASM)—a mandatory, condition‑focused value‑based care initiative designed to transform specialist care for Original Medicare beneficiaries. Launching on January 1, 2027, and running through December 31, 2031, ASM targets outpatient specialists treating heart failure and low back pain.

ASM represents the first large-scale effort by CMS to hold specialists accountable. Learn more about ASM.

CMS proposes the Ambulatory Specialty Model (ASM), a new mandatory model holding specialists accountable for heart failure and low back pain.