You can switch from Medicare Advantage to Medigap without underwriting during certain windows, but timing matters
Whether you need underwriting depends on when you switch. If you move from Medicare Advantage to Medigap during your Open Enrollment Period (October 15 to December 7 each year), most insurers cannot require medical underwriting or deny you based on health history. If you switch outside that window, most insurers will ask health questions and can turn you down. A few states have additional protections that extend may provide issue rights beyond the standard period.
The key is that federal law guarantees you the right to buy certain Medigap plans without underwriting — but only if you meet the timing rules. Missing the window by even one day usually means you lose that protection for the rest of the year.
Key Takeaways
- During Open Enrollment (October 15 to December 7), you can switch to any Medigap plan without medical questions or health-based denials.
- Outside Open Enrollment, most Medigap insurers will require you to answer health questions and can decline coverage based on your answers.
- Some states (Connecticut, Florida, Georgia, Indiana, Maine, Missouri, New Hampshire, New York, North Carolina, and Ohio) offer additional may provide issue periods beyond the federal window.
- Your Medicare Advantage plan's end date is December 31, so you must request a Medigap policy to start by January 1 to avoid a gap in coverage.
- Switching outside may provide issue periods can mean higher premiums or rejection, so confirm your state's rules before you contact an insurer.
What "may provide issue" means and when it applies to you
may provide issue means an insurer must sell you a Medigap plan at standard rates without asking about your health or medical history. Federal law requires this during Open Enrollment, but the rules are narrower than many people think.
You have may provide issue rights only if you are dropping Medicare Advantage to switch to Medigap. If you are already on Original Medicare and Medigap, or if you are switching between Medicare Advantage plans, may provide issue does not explore. You also lose the right if you let your Medicare Advantage coverage lapse — there must be no gap between when your plan ends and when your Medigap coverage starts.
During the may provide issue window, insurers can only sell you Plan C, D, G, or N (the plans most commonly available to new buyers). They cannot limit you to a specific plan based on your age or health.
The federal Open Enrollment window and how to use it
Open Enrollment runs from October 15 to December 7 each year. During this period, you can contact any Medigap insurer and request coverage to start January 1 of the following year. The insurer cannot ask health questions, cannot require a medical exam, and cannot deny you or charge you more based on your health status.
You do not have to wait until December to switch. You can request coverage as early as October 15. The insurer has until December 31 to receive your request; if they receive it by then, your coverage will start January 1. If you miss December 31, you will have a gap in coverage because your Medicare Advantage plan ends on December 31.
To switch during Open Enrollment, contact the Medigap insurer directly by phone or online. Have your Medicare card ready. Tell them you want coverage to start January 1 and that you are dropping Medicare Advantage. They will ask for your name, date of birth, and Medicare number — not health questions. You will receive a policy document and a bill for your first month's premium.
What happens if you switch outside Open Enrollment
If you switch from Medicare Advantage to Medigap after December 7, you lose may provide issue protection. The insurer will send you a health questionnaire asking about your medical history, current conditions, medications, and recent doctor visits. They will use your answers to decide whether to sell you a policy and at what price.
An insurer can deny your request, offer you coverage at a higher premium, or exclude certain conditions from coverage. There is no appeal process within the insurance company — if they deny you, you must wait until the next Open Enrollment to try again, or contact your state insurance commissioner to file a complaint.
Some insurers are more lenient than others when reviewing health questionnaires. If one insurer denies you, another may approve you. It is worth contacting multiple insurers before assuming you cannot get coverage, but there is no may provide any will accept you.
State-level may provide issue periods that extend beyond October to December
Ten states have laws that give you may provide issue rights beyond the federal Open Enrollment window. These protections vary by state and by situation.
| State | Additional may provide Issue Period |
|---|---|
| Connecticut | Six months from when you first enroll in Medicare |
| Florida | Six months from when you first enroll in Medicare |
| Georgia | Six months from when you first enroll in Medicare |
| Indiana | Six months from when you first enroll in Medicare |
| Maine | Six months from when you first enroll in Medicare |
| Missouri | Six months from when you first enroll in Medicare |
| New Hampshire | Six months from when you first enroll in Medicare |
| New York | Six months from when you first enroll in Medicare; also 30 days after losing employer coverage |
| North Carolina | Six months from when you first enroll in Medicare |
| Ohio | Six months from when you first enroll in Medicare |
If you live in one of these states and are still within six months of your initial Medicare enrollment, you may have may provide issue rights even outside the federal October-to-December window. Contact your state insurance commissioner's office or a local Area Agency on Aging to confirm your specific dates.
How to avoid underwriting or minimize the risk
The simplest way to avoid underwriting is to switch during Open Enrollment. Mark October 15 on your calendar each year. If you know you want to leave Medicare Advantage, do not wait until November or December — contact insurers in mid-October so you have time to compare plans and submit your request before the important date.
If you must switch outside Open Enrollment, contact multiple insurers before assuming you will be denied. Some insurers have looser underwriting standards than others, and your health history may not disqualify you even if it seems serious. Ask each insurer what their underwriting process is before you submit a health questionnaire.
If you are denied by one insurer, do not give up. Wait a few months and try again with a different company, or wait until the next Open Enrollment. Your health situation may improve, or a different insurer may view your history differently.
Common mistakes when switching from Medicare Advantage to Medigap
The most common mistake is waiting too long. Many people decide to switch in late November or early December, only to discover the insurer needs time to process the request or that they have missed the important date. If you are thinking about switching, contact insurers by mid-October.
Another mistake is letting your Medicare Advantage coverage lapse. Your new Medigap policy must start on January 1 if your Medicare Advantage plan ends on December 31. If there is even one day without coverage, you lose may provide issue rights and will face underwriting when you try to enroll. Do not cancel your Medicare Advantage plan until your Medigap coverage is confirmed to start.
A third mistake is not checking your state's rules. If you live in one of the ten states with extended may provide issue periods and you are within the window, you have more flexibility than the federal rules allow. Calling your state insurance commissioner's office takes ten minutes and could save you from unnecessary underwriting.
Frequently Asked Questions
What if I switch to Medigap in January instead of December?
If you switch after December 31, your Medicare Advantage coverage will have ended and you will have a gap. You lose may provide issue rights and will face underwriting. Always request Medigap coverage to start January 1 by December 31 of the prior year.
Can an insurer charge me more for a Medigap plan during Open Enrollment?
No. During Open Enrollment, insurers must offer you the same rates they offer to other people your age and gender in your area. They cannot charge you more because of your health history. Rates may vary by age and location, but not by health status.
If I am denied by one Medigap insurer, can I try another?
Yes. Each insurer makes its own underwriting decision. If one denies you, contact others. Some insurers are more lenient than others, and a different company may approve you even if the first one did not.
Do I lose may provide issue if I switch Medicare Advantage plans instead of switching to Medigap?
Yes. may provide issue only applies when you switch from Medicare Advantage to Medigap. If you stay in Medicare Advantage and switch between plans, underwriting rules do not explore, but you also do not have the same protections.
What if my state has an extended may provide issue period but I am outside the federal window?
Contact your state insurance commissioner's office to confirm your dates. If you are within your state's extended period, you have may provide issue rights and can switch without underwriting. The insurer must honor your state's rules even if the federal window has closed.