Can I Leave Medicare Advantage? How to Return to Original Medicare

Last Modified: 10/05/2026 | Reviewed by Keith Armbrecht (NPN 634015)

Quick Summary

Yes. You can leave Medicare Advantage and return to Original Medicare during certain Medicare enrollment periods or when you qualify for a Special Enrollment Period.

But leaving Medicare Advantage involves more than simply canceling a plan.

You need to consider:

When the change can occur

Prescription drug coverage

and

Whether you can obtain Medicare Supplement insurance

before you make the switch.

Key Facts

  • You can leave Medicare Advantage during qualifying enrollment periods.
  • Medicare’s Annual Enrollment Period runs October 15–December 7.
  • Changes made during that period generally take effect January 1.
  • The Medicare Advantage Open Enrollment Period runs January 1–March 31for people already enrolled in Medicare Advantage.
  • During the MA Open Enrollment Period, you can switch to another MA plan or return to Original Medicare.
  • You may also be able to join a separate Part D plan when returning to Original Medicare.
  • Special Enrollment Periods can apply in other situations.
  • Getting Medigap isn’t automatically guaranteed every time you leave Medicare Advantage.
  • Certain people have a 12-month Medigap trial right. (Medicare)

When Can You Leave Medicare Advantage?

Annual Enrollment Period

October 15 through December 7

You can:

  • Switch Medicare Advantage plans
  • Leave Medicare Advantage and return to Original Medicare
  • Make Part D changes

Changes generally take effect January 1.

Medicare Advantage Open Enrollment Period

January 1 through March 31

If you’re already enrolled in Medicare Advantage, you can make one change.

You can switch to another Medicare Advantage plan or return to Original Medicare.

The Medigap Question

This is the part many people overlook.

Returning to Original Medicare doesn’t automatically mean you can buy any Medicare Supplement plan you want.

Depending on your circumstances, medical underwriting may apply.

Before leaving Medicare Advantage, determine whether you have:

Medigap Open Enrollment rights

guaranteed-issue rights

trial rights

or

state-specific protections.

The 12-Month Trial Right

Federal law provides certain Medicare beneficiaries a Medigap trial right.

For example, if you dropped a Medigap policy to join Medicare Advantage for the first time, you may have a one-time 12-month opportunity to return to Original Medicare and obtain Medigap protection under applicable rules.

A separate trial right applies in certain circumstances when someone joins Medicare Advantage when first eligible at age 65 and returns to Original Medicare within the first year. (Medicare)

Don’t Forget Part D

If your Medicare Advantage plan included prescription drug coverage and you’re returning to Original Medicare, you’ll generally need to evaluate a separate Part D prescription drug plan.

Video Explanation from Keith

Want to Leave Medicare Advantage? Do This First

Keith's Take

I don’t want someone dropping Medicare Advantage first and asking about Medigap second.

I want those questions answered in the opposite order.

Before you leave Medicare Advantage, determine:

Can you get the Medicare Supplement plan you want?

What will it cost?

Which Part D plan will you use?

Then make the Medicare Advantage change.

Sequence matters.

Keith Armbrecht
Keith Armbrecht
Medicare on Video

Frequently Asked Questions About Leaving Medicare Advantage

Q. Can I leave Medicare Advantage whenever I want?
A. Generally no. You need an applicable enrollment period or Special Enrollment Period.
Q. Can I leave October 15–December 7?
A. Yes.
Q. Can I leave January 1–March 31?
A. If you're currently enrolled in Medicare Advantage, the Medicare Advantage Open Enrollment Period may allow you to return to Original Medicare.
Q. Can I buy Medigap afterward?
A. Possibly, but acceptance may depend on your enrollment protections, state law and medical underwriting.
Q. What is the Medigap trial right?
A. A federal protection allowing certain beneficiaries who tried Medicare Advantage to return to Original Medicare and purchase certain Medigap coverage within the applicable 12-month window.
Q. Will I need Part D?
A. Usually, if you return to Original Medicare and want prescription drug coverage.

Official Government Sources

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