“I just want to go back to Original Medicare.” I hear this a lot — usually after a frustrating year with a Medicare Advantage plan. The problem is, wanting to go back and being able to go back with full protections are two different things. Whether you can add a Medigap policy without answering health questions depends entirely on why and when you’re leaving.
Here’s how to tell where you stand before you make a move.
First: Know the Difference Between a Trial Right and Just Being Unhappy
A trial right is a federal protection that lets you “test drive” Medicare Advantage. It applies in two specific situations:
- You enrolled in a Medicare Advantage plan when you first became eligible for Medicare at 65, and within your first 12 months you decide to switch to Original Medicare
- You had a Medigap policy, dropped it to try Medicare Advantage for the first time, and within your first 12 months you want to switch back
If either applies to you, federal law gives you guaranteed issue rights — meaning a Medigap insurer must accept you and can’t charge you more because of your health, even if you have serious medical conditions.
If neither applies — say, you’ve been on your Advantage plan for three years and you’re simply tired of it — you generally have to go through medical underwriting to get a Medigap policy. That means the insurer can ask about your health history and can deny you or charge a higher premium based on the answers.
Second: Know That a Plan Ending Your Coverage Is Different From You Ending It
There’s a separate category of guaranteed issue rights that has nothing to do with the 12-month trial window: your plan terminates your coverage entirely, stops serving your county, or the plan itself is non-renewed by Medicare for the following year. In those cases, you get a guaranteed issue right to buy a Medigap policy, no underwriting required, because the loss of coverage wasn’t your choice.
This is the piece that trips people up most: a disappointing network change does not count. If a hospital system or a group of your doctors leaves your Medicare Advantage plan’s network — even a major local system — your plan itself hasn’t ended. You still have coverage; you just may not like your options anymore. That’s not a qualifying event for guaranteed issue. You’d need to switch during a valid enrollment period, and if you want a Medigap policy at that point, you’d typically go through underwriting.
Third: Know What Can Actually Get You Denied
Underwriting isn’t a formality — insurers can and do decline applicants. Conditions that commonly result in a denial or a higher rate include:
- Active cancer treatment or cancer within the past 1–2 years (varies by carrier)
- Recent heart attack, stroke, or bypass surgery
- End-stage renal disease (ESRD) or dialysis
- Diabetes with complications like neuropathy or vision loss
- Oxygen-dependent COPD or other advanced lung disease
This isn’t a complete list, and every carrier underwrites a little differently — but it’s exactly why timing matters so much if you’re considering this move.
A Quick Glossary
- Original Medicare — Traditional Medicare, Parts A and B, run directly by the federal government
- Medicare Advantage (Part C) — A private-insurance alternative to Original Medicare, often with extra benefits and a provider network
- Medigap — A supplemental policy that helps cover Original Medicare’s out-of-pocket costs; only works alongside Original Medicare, not Advantage
- Guaranteed issue — A legal right to buy a Medigap policy without being denied or charged more based on health
- Medical underwriting — The health-question process an insurer can use to decide whether to accept you and what to charge
The Three Mistakes I See Most Often
- Assuming a trial right is permanent. It only applies within your first 12 months on the plan — miss the window and it’s gone.
- Disenrolling before lining up Medigap. Switch to Original Medicare first, then find you can’t get approved for a Medigap policy, and you can be left with no supplemental coverage at all.
- Treating a network loss as an automatic ticket back to guaranteed issue. It isn’t — and finding that out after you’ve already disenrolled is a costly surprise.
Don’t Guess With This One
This is one of the few areas of Medicare where the timing and the paperwork genuinely determine your options — get it wrong and you could end up with no supplemental coverage and a health condition standing in the way of getting one. I walk Southwest Florida clients through this at no cost to you. No pressure, just education. [Get My Free Consultation →]
Jessie A. Navalta, Owner/Broker, TrustHaven Insurance Agency