Your Medigap premium went up again. You want to shop for a better rate or switch to a different plan. But you heard something about health questions and underwriting. Can you switch without a medical review, or are you stuck? Here are all the ways to change Medigap plans with no health questions asked.
The short answer
In most states, most of the time, switching Medigap plans requires medical underwriting. That means the new carrier can ask health questions, look at your medications, and turn you down.
But there are five situations where you can switch with NO underwriting. If any of these fits, you can shop Medigap plans freely and change carriers or plan letters without touching your health history.
How Medigap underwriting works
When you apply for a Medigap plan outside a guaranteed window, the carrier reviews you like any other insurance product. They will typically ask:
- What health conditions have you been treated for in the last few years?
- What medications are you taking?
- Have you had recent surgeries or hospital stays?
- Do you have pending medical procedures scheduled?
Based on your answers, they can:
- Approve you at the standard rate
- Approve you at a higher "rated" rate
- Deny you outright
This is why timing matters so much. Getting into a Medigap plan when you are healthy is easy. Doing it after a major diagnosis is much harder.
The 5 ways to switch Medigap with no underwriting
1. Your 6-month Medigap Open Enrollment Period
This is the big federal one. Everyone gets it once. It starts the first month you are both 65 or older AND enrolled in Part B. It lasts exactly 6 months.
During this window you can buy any Medigap plan sold in your state, from any carrier, at their best rate, with no health questions. It is the strongest Medigap right you will ever have.
The problem is most people already used it. If you have been on Medicare for a few years, this window is over. But if you are new to Medicare or turning 65 soon, use this window well.
2. Federal Guaranteed Issue Rights
Even after your open enrollment window closes, federal law gives you a "guaranteed issue" right in certain situations. When one of these triggers, you can buy specific Medigap plans without underwriting.
Common triggers:
- You joined Medicare Advantage when you first turned 65 and want to switch back to Original Medicare within 12 months (the "trial right")
- Your Medicare Advantage plan is leaving your area or ending
- Your current Medigap carrier goes bankrupt or leaves your state
- You had employer coverage that ended
- You moved out of your Medicare Advantage plan's service area
Each trigger has its own rules about which Medigap plans you can pick and how long you have to act (usually 63 days). See our full guide to Medicare guaranteed issue rights.
3. State birthday rule
Some states let you switch Medigap plans once a year around your birthday with no underwriting. This is a state law, not federal.
States with a birthday rule as of 2026 include:
- California
- Oregon
- Idaho
- Illinois (limited)
- Kentucky
- Louisiana
- Maryland
- Nevada
- Oklahoma
- Washington
Rules vary. Some states let you switch to the same plan letter with any carrier. Others let you switch to a lower-benefit plan. Windows range from 30 to 60 days after your birthday. See our state-by-state birthday rule guide for the exact terms in each state.
Two states where I hold a license, Maryland and Nevada, offer a birthday rule. It is one of the best tools for shopping Medigap rates.
4. State anniversary rule (Missouri)
Missouri has a similar law called the anniversary rule. It works like the birthday rule but the window opens 30 days before and 30 days after your policy anniversary date, not your birthday. Same Medigap plan letter, any carrier, no underwriting.
5. Year-round issue states (Connecticut, Massachusetts, New York, Maine)
A handful of states go further and require Medigap carriers to sell to you any time of year without underwriting. Rules:
- Connecticut: Year-round guaranteed issue. Community-rated pricing.
- Massachusetts: Year-round issue during an annual open enrollment (Feb 1 to Mar 31 for most carriers).
- New York: Year-round guaranteed issue. No underwriting ever.
- Maine: One-month per year switch window without underwriting for Plan A. Other plans have limited guaranteed issue rights.
If you live in one of these states, the Medigap market works differently than the rest of the country. You have more flexibility to shop each year.
What about "underwriting waivers" and carrier promotions?
Sometimes a Medigap carrier will run a limited-time offer that waives underwriting for existing customers of certain other carriers. These are rare, region-specific, and change fast. If one is available and you qualify, take it. This is where an independent agent earns their keep because we hear about them first.
How to pick a new plan (the smart way)
Before you switch, know what you are switching FROM and TO. Ask these questions:
- What plan letter do I have now (F, G, N, other)?
- What is my current premium?
- What plan letter am I switching to?
- What are the premium quotes with other carriers for the same plan letter?
- How long has my current carrier been in my state? What are their rate increase trends?
- How does the new carrier's rate history look?
A lower premium today is worthless if the new carrier raises rates 15% next year. Track record matters more than starting price. See our guide to comparing Medigap companies.
The trap: cancel late, not early
Never cancel your current Medigap plan until the new one is fully approved and effective. If you cancel too early and the new plan gets denied or delayed, you could end up with a coverage gap.
The safe order:
- Apply for the new plan
- Wait for full approval in writing
- Get the new effective date confirmed
- THEN call your old carrier and cancel, effective the day before the new one starts
The "free look" period on new Medigap plans (usually 30 days) gives you time to change your mind after approval. Use it to compare final paperwork before you cut ties with the old carrier.
Common mistakes
Assuming your open enrollment period is still open
Your 6-month Medigap open enrollment starts when you get Part B and lasts 6 months. Not longer. Once it is gone, it does not come back.
Not knowing your state's rules
If you live in California, Oregon, New York, or another state with special Medigap protections, you might have more options than you realize. Ask an agent who is licensed in your state.
Switching from Plan G to Plan N to save premium without checking
Plan N has lower premiums but you pay copays and possibly excess charges. Do the full math before switching. See our Plan G vs Plan N comparison.
Applying with multiple carriers at once
Some seniors apply to three carriers hoping to get the best answer. Bad idea. If one denies you, that denial shows up on records the others can see. Apply to one at a time, in order of preference.
Answering health questions casually
If you do have to answer underwriting questions, be exact and honest. Any lie or omission gives the carrier grounds to cancel your policy later for misrepresentation. Get it right the first time or do not apply.
What if I need to switch but cannot pass underwriting?
If you have serious health issues and none of the five no-underwriting paths apply, you have three options:
- Stay on your current plan and negotiate with the carrier if you feel the rate hike is unfair
- Switch to Medicare Advantage during AEP (October 15 to December 7), which does not underwrite
- Look at High-Deductible Plan G if it exists in your state (some carriers may still underwrite)
Switching to Medicare Advantage is a real option, but it is a big change. Different network rules, prior authorization, MOOP limits, no Medigap-style predictability. Compare carefully. See Medicare Advantage vs Medigap.
Where to check the rules for your state
The federal Medicare.gov Medigap page lists guaranteed issue rights and state protections. Your State Health Insurance Assistance Program (SHIP) is free and knows your state's rules cold.
The bottom line
You can switch Medigap plans without medical underwriting in five situations: your first 6-month open enrollment, a federal guaranteed issue right, a state birthday or anniversary rule, a year-round issue state, or a carrier promotion.
Outside of those, expect health questions. Being healthy today is your best asset. If you are thinking about switching, do it before a big diagnosis, not after.
Not sure whether your state has special rules or which plan letter would save you the most? A quick call sorts it out. Book one below.
Frequently asked questions
Can I switch Medigap plans without medical underwriting?
Yes, in 5 situations: your 6-month open enrollment at age 65, a federal guaranteed issue right, a state birthday or anniversary rule, a year-round issue state, or a special carrier promotion.
What is the Medigap birthday rule?
A state law that lets you switch Medigap plans once a year around your birthday without health questions. About 10 states have it. Rules vary.
Do I have to answer health questions to switch Medigap?
In most states most of the time, yes. Carriers can ask about your health and turn you down or charge more if you apply outside a guaranteed issue window.
When does the 6-month Medigap Open Enrollment Period start?
The first month you are both 65 or older AND enrolled in Part B. It lasts 6 months. You can only use it once.
Can a Medigap carrier deny me if I have health problems?
Yes, in most states, outside a guaranteed issue window. They can deny you or charge higher rates. Once you are enrolled, though, they cannot drop you.