Congress·In Committee·S. 3350
ACO Assignment Improvement Act of 2025
Congress would let Medicare use NP and PA primary care visits to assign patients to ACOs starting in 2026
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Stalled
No legislative action in over 90 days.
Legislative Progress
Senate
Key Points
- Starting Jan. 1, 2026, Medicare will also use primary care visits with nurse practitioners, physician assistants, and clinical nurse specialists to assign patients to Medicare ACOs.
- This changes how Medicare links you to an ACO in the shared savings program, which can affect which doctors and care teams are seen as responsible for coordinating your care.
- For many patients who mainly see a nurse practitioner or physician assistant for primary care, this makes it more likely they’ll be assigned based on those visits instead of only physician visits.
- If you’re assigned to an ACO, your care team may do more outreach (like care coordination calls or follow-ups) because the ACO is being measured on your care and costs.
- The bill updates the Social Security Act rules for Medicare’s ACO program; it does not describe changes to Medicare eligibility or your right to choose providers.
Impact Analysis
Personal Impact
How this policy affects specific groups of people
Mixed Impacts(2)
Milestones
2 milestones3 actions
Dec 4, 2025
Read twice and referred to the Committee on Finance. (text: CR S8512)
Sent to a congressional committee for expert review. The committee decides whether this bill moves forward.
Dec 4, 2025
Dec 4, 2025
Introduced in Senate
The bill was officially filed and given a number. It now enters the legislative queue.
Votes
No votes have been recorded for this legislation yet.
Source Information
Document Type
Congressional Bill
Official Title
ACO Assignment Improvement Act of 2025
Bill NumberS 3350
Congress119th Congress
ChamberSenate
Latest ActionRead twice and referred to the Committee on Finance. (text: CR S8512)
Data Sources
Sponsor
Cosponsors
(1)D: 1
Analysis generated by AI. Always verify with official sources.