Medicare Enrollment Checklist

Interactive Medicare enrollment checklist: Part A, B, C, D. Enrollment windows. Penalty calculator.

Your Age

Birth Month

Currently Have Employer Coverage?

Months Delayed Past Eligibility (Part B)

Medicare Enrollment Windows

Initial Enrollment: 7-month window around your 65th birthday month
General Enrollment: Jan 1 - Mar 31 each year (coverage starts July 1)
Open Enrollment (Parts C/D): Oct 15 - Dec 7 each year
Special Enrollment: When losing employer coverage

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