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Enrollment period checker
Pick a date to see which Medicare enrollment periods are open and how many days until the next one.
The main enrollment periods
| Period | Dates | What it is for |
|---|---|---|
| Open Enrollment Period | October 15 – December 7 | Join, switch or drop a Medicare Advantage or drug plan; coverage starts January 1. |
| Medicare Advantage Open Enrollment Period | January 1 – March 31 | People already in a Medicare Advantage plan can make one change. |
| Initial Enrollment Period | 7 months around the 65th birthday month | First chance to sign up. Use the turning 65 window finder. |
Special Enrollment Periods can also apply after certain life events, such as moving or losing other coverage. Carriers can begin marketing next year’s plans on October 1 (42 CFR 422.2263).
Sources
Summaries are for general information for licensed agents, not legal advice. Rules change; always follow current CMS, state and carrier requirements.
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