Should You Switch from Medicare Advantage Back to Medigap?

Short Summary

Switching from Medicare Advantage back to Medigap is possible — but it’s significantly harder than going the other direction. In most states, insurance companies can apply medical underwriting, meaning your health history matters when you try to return. There are specific situations where you have guaranteed rights to switch back, and a handful of states with stronger consumer protections. This guide explains when and how you can make the reverse switch, what the risks are, which states protect you, and how to decide if going back to Medigap makes financial sense for your situation.

Why Would Someone Want to Switch Back to Medigap from Medicare Advantage?

When I made my switch from Medigap to Medicare Advantage at 67, I was saving money and feeling good about the decision. But I also knew — and knew clearly — that the reverse path wasn’t guaranteed to be open to me. That awareness actually made me more careful about the initial switch, because I understood I might not be able to undo it easily.

Now, three years later, I have friends who have switched to Medicare Advantage and love it. I also have a few who want to go back to Medigap. Their reasons vary:

• A health diagnosis that makes frequent specialist visits and hospitalizations much more likely
• Their primary doctor left their Advantage plan’s network
• They started traveling more and need nationwide coverage
• Prior authorization hassles became a consistent source of stress
• Their plan’s out-of-pocket costs added up to more than expected

All of these are legitimate reasons. The question is whether the path back is open — and what it costs to walk it.

While many people switch from Medigap to Medicare Advantage, going the other way is also possible. See what I did instead in I Refused to Pay High Rates at 67 – This is What I Did Instead — my full personal account of making the original switch and what it saved me.

Can You Actually Switch from Medicare Advantage Back to Medigap?

Yes — but “can you” and “will they let you” are two different questions.

On the Medicare side, there’s no rule preventing you from leaving Medicare Advantage and returning to Original Medicare (which Medigap supplements). You can do that during the Annual Enrollment Period or Medicare Advantage Open Enrollment Period. That part is straightforward.

The harder part is getting a Medigap insurer to accept you.

In most states, when you apply for Medigap outside of a protected enrollment window, insurance companies can apply medical underwriting. They review your health history and can legally:

• Deny your application entirely based on pre-existing conditions
• Charge you significantly higher premiums than a healthy applicant
• Impose waiting periods before covering certain conditions

If you’ve developed a serious health condition since leaving Medigap — a cancer diagnosis, heart disease, diabetes, COPD — you may find that Medigap coverage is either unavailable or unaffordably expensive when you try to return.

When Do You Have Guaranteed Issue Rights to Return to Medigap?

There are specific circumstances under federal law where you have a guaranteed right to purchase Medigap without underwriting — meaning insurers must sell you coverage regardless of your health status. These situations are called “guaranteed issue rights” or “Medigap protections.”

The most valuable and underused protection is the Trial Right: if you’re in your first year on Medicare Advantage and decide it’s not working for you, federal law gives you guaranteed issue rights to return to Medigap — without medical underwriting — within those first 12 months. This is a significant safety net that many people don’t know about.

Which States Offer Stronger Medigap Protections?

While most states follow the federal baseline rules, a handful have enacted significantly stronger consumer protections that make it easier to switch back to Medigap at any time. If you live in one of these states, your options are considerably broader:

If you live in New York or Connecticut, you can essentially move between Medicare Advantage and Medigap more freely, because insurers in those states cannot deny you Medigap coverage based on health status. For everyone else, careful planning is essential.

Should You Actually Switch Back? How to Decide

Let’s say you can make the switch — you have guaranteed rights, or you live in a protective state, or you’re within your first year on Medicare Advantage. The next question is: should you?

Here’s how I’d think through the decision:

How Do You Actually Switch from Medicare Advantage Back to Medigap?

My Final Thoughts on Switching Back

Going from Medicare Advantage back to Medigap isn’t impossible — but it requires either good timing (first year trial right, qualifying event) or living in a state with strong consumer protections. For people in the majority of states who are past their first year with no qualifying event, the path back to Medigap can be genuinely difficult or expensive if health has changed.

This is exactly why I was so deliberate about my original switch. I knew going in that it was close to a one-way door in my state. That knowledge made me research more carefully, verify more thoroughly, and go in with open eyes.