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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F

Formulary

Part D

A list of prescription drugs covered by a Medicare Part D plan or Medicare Advantage plan with drug coverage. Drugs are organized into tiers, with each tier having a different cost. Plans can change their formularies annually.

Also known as: Drug list, Preferred drug list

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