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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I

Initial Enrollment Period (IEP)

Enrollment

The 7-month window around your 65th birthday during which you can first sign up for Medicare. It includes the 3 months before your birthday month, your birthday month, and the 3 months after. Enrolling during the first 3 months gets you the earliest coverage start.

Also known as: IEP

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