# UnitedHealthcare — Medicare star rating (contract S5921, 2026) — context brief

CMS 2026 star ratings for UnitedHealthcare (Standalone Part D drug plan, contract S5921, parent UnitedHealth Group, Inc.): 2-star Part D, Part D drug 2★. CMS quality DETERMINATIONS (occurred=false, adjudged=true — CMS's official designation, not reproducible from public inputs). A quality summary across enrollees — not a guarantee of your experience, not plan availability, not advice. CC0.

Claims (warrant · source), each re-fetchable to verify:

- **UnitedHealthcare — Part D (drug) rating: 2 of 5 stars (2026)** — PROJECTED · CMS — Medicare Advantage & Part D Star Ratings, 2026 (https://www.cms.gov/medicare/health-drug-plans/part-c-d-performance-data)
- **What a CMS star rating is — and is NOT** — INTERPRETATION · Coverage Atlas L5 boundary (a population quality rating ≠ your individual experience) (https://coverage-atlas.ryanjhunter.workers.dev/)

Do not take these on trust — re-fetch each named source. Full structured object: `https://coverage-atlas.ryanjhunter.workers.dev/coverage/star-ratings/s5921.jsonld` · anatomy of the research object: see /commons/the-research-object

**CMS star ratings — UnitedHealthcare (contract S5921, 2026)** (1): Part D (drug) — 2 of 5 — DETERMINATION…