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Medicare question

What is the Medicare Advantage Open Enrollment Period from January to March?

The Medicare Advantage Open Enrollment Period runs January 1 through March 31 each year. During this time, people already enrolled in a Medicare Advantage plan can switch to a different Medicare Advantage plan or return to Original Medicare.

Last updated: August 17, 2026

Where this answer comes from, and what it can't tell you

Written from the published Medicare rules and the source material preserved for this question. It explains the topic in general terms. It is not a reading of your own coverage documents, not a prediction of how Medicare or a plan will decide a case, and not advice about a particular plan. Your current notice, policy, Evidence of Coverage, or formulary controls when it differs from a general explanation. Resting Sycamore is not Medicare.gov and is not endorsed by any government agency.

What determines the answer to “What is the Medicare Advantage Open Enrollment Period from January to March”?

The Medicare Advantage Open Enrollment Period runs January 1 through March 31 each year. During this time, people already enrolled in a Medicare Advantage plan can switch to a different Medicare Advantage plan or return to Original Medicare.

Which details can change the answer to “What is the Medicare Advantage Open Enrollment Period from January to March”?

If you enrolled in a Medicare Advantage plan during the fall and then had second thoughts, or if your plan changed in ways that no longer work for you, this period gives you one chance to make a switch. Between January 1 and March 31, you can move from one Medicare Advantage plan to another, or drop your Medicare Advantage plan entirely and go back to Original Medicare. If you go back to Original Medicare during this window, you can also join a standalone Part D plan , which covers prescription drugs. One important distinction: this period is only for people who are already in a Medicare Advantage plan. If you currently have Original Medicare, this period does not allow you to join a Medicare Advantage plan for the first time. That opportunity comes during the fall Open Enrollment Period, which runs October 15 through December 7. Any changes you make during January through March take effect the first of the following month.

For you, this means if your Medicare Advantage plan is not working out after the new year begins, you have until March 31 to make one change without waiting until fall.

What should you verify before acting on “What is the Medicare Advantage Open Enrollment Period from January to March”?

Confirm the effective date, notice deadline, and whether a Special Enrollment Period applies before changing coverage. The controlling notice or enrollment record matters more than a general example.

Where should you look next?

All Medicare questionsBrowse the current question library by topic.Interactive Medicare toolsWork through dates, costs, and coverage details with the available calculators.Medicare doctor recordsCheck the provider and prescribing records currently published on Resting Sycamore.

What else do people ask about determines the answer to “What is the Medicare Advantage Open Enrollment Period from January to March”?

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