The short answer
Yes, you can leave a Medicare Advantage plan and go back to Original Medicare, but only during certain windows, and there's an important catch: getting a Medigap plan to go with Original Medicare may require medical underwriting depending on your timing. Making the switch is straightforward; making sure you're not left with a gap takes a little planning.
The two main windows are the Annual Enrollment Period each fall and the Medicare Advantage Open Enrollment Period in the first months of the year. There are also special situations that open a window.
The windows to switch
During the fall Annual Enrollment Period, you can drop Medicare Advantage and return to Original Medicare (and add a Part D drug plan). During the Medicare Advantage Open Enrollment Period early in the year, if you're already in an Advantage plan, you can switch to Original Medicare once. Certain events — like moving out of your plan's service area — can also trigger a special enrollment period.
To actually return to Original Medicare, you disenroll from your Advantage plan (often simply by enrolling in a stand-alone Part D plan or contacting Medicare). Coverage then reverts to Original Medicare. Our guide to switching from Medicare Advantage to Medigap covers the mechanics in detail.
The Medigap catch
Here's the part people miss. When you go back to Original Medicare, you'll usually want a Medigap supplement to cover the gaps. But outside your original Medigap open enrollment window, buying a supplement can require answering health questions — and an insurer can decline you or charge more. So dropping Advantage is easy; getting the supplement you want may not be, depending on your health and timing.
There are exceptions where you get guaranteed-issue rights, including certain trial-right situations. Before you disenroll, confirm you can get the Medigap coverage you want, so you're not left on Original Medicare with no supplement. Our Medicare Supplement overview explains how the plans work.
Frequently Asked Questions
When can I leave a Medicare Advantage plan?
During the fall Annual Enrollment Period, during the Medicare Advantage Open Enrollment Period early in the year, or during a special enrollment period triggered by an event like moving out of the service area.
How do I switch back to Original Medicare?
You disenroll from your Advantage plan — often by enrolling in a stand-alone Part D plan or contacting Medicare — and your coverage reverts to Original Medicare. You'll usually want to add a Part D plan and a supplement.
Can I get a Medigap plan when I switch back?
Sometimes, but outside your original Medigap window it may require medical underwriting, so an insurer could decline you or charge more. Confirm you can get a supplement before you disenroll, unless you have a guaranteed-issue right.
Free Consultation
Have Questions About Your Situation?
Every Medicare situation is different. Our Wyoming and Utah advisors provide free, personalized guidance — no pressure, no obligation.