108 Medicare Terms Defined

Medicare Glossary

Plain-English definitions for every Medicare term — from ABN to ZIP enrollment. No jargon, no confusion.

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Star Ratings

Part C / Advantage

A 1–5 star quality rating system that CMS uses to measure how well Medicare Advantage and Part D plans perform. Ratings are based on measures including member experience, customer service, and managing chronic conditions. Higher-rated plans may receive bonus payments.

Also known as: CMS Star Ratings, Quality ratings

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