How to Switch from Medicare Advantage to Medigap

If you are feeling restricted by your current healthcare coverage, you are not alone. Many people initially choose Medicare Advantage for the low upfront premiums and extra perks, only to realize later that network restrictions and prior authorizations are getting in the way of their care. This realization often leads people to ask how they can switch from Medicare Advantage to Medigap. Making this change can give you the freedom to see any doctor or visit any hospital in the United States that accepts Original Medicare. However, the process is not as simple as just clicking a button on a website during the fall enrollment season. You have to navigate specific rules, health questionnaires, and strict timelines to make sure you do not end up without coverage.

At Genie Medicare, we want to grant your Medicare rate wish by making this complex process as simple and transparent as possible. We are not affiliated with or endorsed by the U.S. government or the federal Medicare program, which means we can give you independent, unbiased facts. In this comprehensive guide, we will walk you through exactly how to switch from Medicare Advantage to Medigap. We will cover the hidden traps of medical underwriting, how to use your trial rights, the exact costs you need to budget for in 2026 and 2027, and a step-by-step checklist to ensure a smooth transition.

Can You Switch from Medicare Advantage to Medigap?

The short answer is yes, you can switch from Medicare Advantage to Medigap. However, there is a major catch that catches many seniors off guard: you cannot simply buy a Medigap policy whenever you want without consequences. By law, you cannot have both a Medicare Advantage plan and a Medigap policy at the same time. If you want to make the switch, you must disenroll from your Medicare Advantage plan and return to Original Medicare, which consists of Part A (hospital insurance) and Part B (medical insurance).

Once you are back on Original Medicare, you can apply for a Medigap policy to help pay for the out-of-pocket costs that Original Medicare does not cover, such as deductibles and coinsurance. But here is the most important part of the entire process: unless you are in a very specific situation, the insurance company selling the Medigap policy is allowed to ask you questions about your health. This process is known as medical underwriting. Depending on your answers, the insurer can approve you, charge you a much higher monthly premium, or deny your application entirely.

Many people assume that because they can change their Medicare Advantage plan every year, they can also switch to Medigap just as easily. This is a dangerous misconception. Your ability to switch relies heavily on your current health status, the state you live in, and whether you qualify for special protections called guaranteed issue rights. Before you make any moves, you need to understand exactly what you are up against.

Network Frustrations and the Medicare Advantage Backlash

To understand why so many people want to switch, it helps to look at the differences between the two types of coverage. Medicare Advantage plans, also known as Part C, are private health plans that bundle your Part A, Part B, and usually Part D drug coverage into one package. They often have very low monthly premiums. However, they require you to use a specific network of doctors and hospitals, usually an HMO or a PPO. If you go outside of this network, you may have to pay the full cost of your care. Additionally, these plans often require prior authorization, meaning you need the insurance company's permission before you can get certain treatments or surgeries.

The financial risk with Medicare Advantage can also be significant if you become seriously ill. In 2026, the maximum in-network out-of-pocket limit for a Medicare Advantage plan is $9,250. If you have a bad year health-wise, you could be on the hook for thousands of dollars before your plan pays 100 percent of your costs.

In contrast, Medigap (also known as Medicare Supplement insurance) works alongside Original Medicare. There are no networks. If a doctor accepts Original Medicare, they must accept your Medigap plan, regardless of which insurance company sold it to you. You do not need referrals to see specialists, and you do not need prior authorizations from the insurer for covered services. For many seniors, the peace of mind that comes with predictable costs and total freedom of choice is worth paying a higher upfront monthly premium. If you are ready to explore your options, you can compare Medicare Supplement rates right here on Genie Medicare.

The Fall Open Enrollment Window: Dates and Realities

Timing is everything when it comes to Medicare. There are specific windows of time when you are allowed to drop your Medicare Advantage plan and return to Original Medicare. The most famous of these is the Medicare Annual Enrollment Period (AEP), which runs from October 15 through December 7 every year. Any changes you make during this time take effect on January 1 of the following year.

During the AEP, you have the right to drop your Medicare Advantage plan, return to Original Medicare, and join a standalone Part D prescription drug plan. However, this period only governs your ability to drop Medicare Advantage and add drug coverage. It does not give you a free pass to buy a Medigap policy.

There is also another window called the Medicare Advantage Open Enrollment Period (MA OEP), which runs from January 1 through March 31 each year. If you are already enrolled in a Medicare Advantage plan on January 1, you can use this window to drop your plan, return to Original Medicare, and add a Part D drug plan. Just like the fall AEP, this winter window does not protect you from Medigap medical underwriting. You still have to prove you are healthy enough to be approved.

The AEP Trap: Why Medical Underwriting Still Applies

One of the biggest mistakes seniors make is falling into what we call the AEP Trap. Every fall, television commercials and mailers flood your home, talking about the Annual Enrollment Period. Because the advertising is so aggressive, many people mistakenly believe that the AEP is an open season for all things Medicare. They assume that if they apply for a Medigap policy between October 15 and December 7, the insurance company has to accept them.

This is entirely false. If you apply for a Medigap policy outside of your initial 6-month Medigap Open Enrollment Period (which starts the month you turn 65 and are enrolled in Part B), insurers in most states are legally allowed to use medical underwriting. They will ask you a series of health questions on the application. They will want to know about your medical history, any recent surgeries, your prescription medications, and whether you have been diagnosed with chronic conditions like heart disease, cancer, or diabetes.

If you have a pre-existing condition, the insurance company can deny your application. Even if they approve you, they might charge you a significantly higher premium than they would charge a perfectly healthy person. This means that if you wait until you are sick to try and switch from Medicare Advantage to Medigap, you might find that you are trapped in your Advantage plan because no Medigap insurer will accept you. This is why it is so critical to think about your long-term health needs when choosing your coverage.

How the 12-Month Medicare Advantage Trial Right Works

While medical underwriting is the standard rule, the government does provide a few safety nets. These are known as guaranteed issue rights, and the most common ones are called trial rights. A trial right allows you to buy a Medigap policy without having to answer any health questions, even if you have pre-existing conditions. There are two main types of trial rights that apply to Medicare Advantage.

Trial Right 1: Joining Advantage at Age 65

If you joined a Medicare Advantage plan when you first became eligible for Medicare at age 65, you are given a 12-month grace period. If you decide within the first 12 months that you do not like the plan, you have a trial right to switch back to Original Medicare and buy any Medigap policy sold in your state that is available to you. The insurance company cannot ask you health questions or deny your application.

Trial Right 2: Dropping Medigap to Try Advantage

If you already had a Medigap policy, dropped it, and joined a Medicare Advantage plan for the very first time, you also get a 12-month trial period. If you are unhappy with the Advantage plan, you can switch back to Original Medicare within those first 12 months. You have the right to get your exact same Medigap policy back from your previous insurance company, assuming they still sell it. If they no longer sell that specific policy, you are allowed to buy other select Medigap plans without medical underwriting.

It is incredibly important to note that these trial rights only last for 12 months. If you stay in your Medicare Advantage plan for 13 months, the trial right vanishes, and you will have to pass medical underwriting to switch to Medigap.

State-Specific Exceptions: Where Underwriting Doesn't Apply

Healthcare is regulated at both the federal and state levels, which means the rules can change depending on where you live. While the federal rules dictate that medical underwriting applies after your initial enrollment period, a handful of states have passed their own laws to protect consumers. If you live in one of these states, you might have an easier time switching from Medicare Advantage to Medigap.

States like New York, Connecticut, Massachusetts, and Maine have continuous or annual guaranteed issue rules. In these states, residents can often switch to a Medigap policy year-round, or during specific annual windows, without having to answer health questions. The insurance companies in these states are required to accept you regardless of your pre-existing conditions. However, because the insurers take on more risk by accepting everyone, the monthly premiums for Medigap in these states tend to be higher than the national average.

If you do not live in one of these specific states, you cannot simply move to a new state to escape health questions, unless you trigger a special enrollment period by moving out of your Medicare Advantage plan's service area. Even then, the rules can be complicated, so it is always best to compare all rates on Genie Medicare and speak with a licensed agent to understand the specific laws in your ZIP code.

Cost Breakdown: Budgeting for Your Switch in 2026 and 2027

Switching from Medicare Advantage to Medigap changes how you pay for your healthcare. With Medicare Advantage, you might have a zero-dollar premium, but you pay copayments as you go, up to a maximum of $9,250 in 2026. With Medigap, you pay a higher monthly premium upfront, but your out-of-pocket costs for medical services are drastically reduced and highly predictable.

To budget properly, you need to understand the costs of Original Medicare and Medigap. Remember, Medigap only supplements Original Medicare, so you must continue to pay your Part A and Part B costs. In 2026, the standard Medicare Part B premium is $202.90 per month. The 2026 Medicare Trustees Report projects this will rise to $209.50 per month in 2027 (pending final confirmation). You also have to cover the Part B deductible, which is $283 in 2026 and projected to be $292 in 2027.

If you go to the hospital, Original Medicare has significant costs. The Part A deductible is $1,736 per benefit period in 2026. If you have an extended stay, the Part A coinsurance in 2026 is $434 per day for days 61 through 90, and $868 per day for lifetime reserve days. A good Medigap plan will cover these hospital costs completely.

Medigap premiums themselves vary widely based on your age, location, gender, and tobacco use. There is no single federal figure for Medigap premiums because private insurers set the rates. However, there are federal limits on certain plan structures. For example, if you choose a High-Deductible Medigap Plan (like Plan F, G, or J), the deductible is $2,950 in 2026. CMS has officially announced this will rise to $3,050 in 2027. If you choose Medigap Plan K or L, which have out-of-pocket limits, CMS has finalized the 2027 limit for Plan K at $8,360, and for Plan L at $4,180.

Note: Due to MACRA restrictions, Medigap Plans C and F (which cover the Part B deductible) cannot be sold to anyone who became eligible for Medicare on or after January 1, 2020. Most new beneficiaries choose Plan G instead.

Don't Forget Part D: Avoiding the Late Enrollment Penalty

One of the most critical steps in switching from Medicare Advantage to Medigap is securing prescription drug coverage. Most Medicare Advantage plans include built-in drug coverage. Original Medicare and Medigap do not. If you make the switch, you must buy a standalone Medicare Part D plan to cover your medications.

If you fail to buy a Part D plan when you switch, you could face severe financial consequences. Medicare imposes a late enrollment penalty if you go 63 days or more without creditable prescription drug coverage. This penalty is added to your monthly Part D premium for as long as you have Medicare. The penalty grows for every single month you delay signing up, which means waiting a year or two can result in a permanently expensive monthly bill. (Similarly, there is a Part B penalty that adds an extra 10 percent to the monthly premium for each full 12-month period a beneficiary was eligible but did not sign up, though this usually applies to initial enrollment rather than switching).

When budgeting for Part D, you need to look at the latest figures. The maximum standard Part D deductible is $615 in 2026, rising to $700 in 2027. The annual out-of-pocket cap for medications is $2,100 in 2026, and it will rise to $2,400 in 2027. You can learn more about how this cap protects you by reading our guide on the Medicare Part D Out of Pocket Cap. CMS projects the average standalone Part D premium will be $36.00 per month in 2027. It is also important to note that a temporary federal program designed to stabilize Part D premiums ends after 2026, which may cause slight premium shifts for standalone drug plans in 2027.

Why Underwriting Applications Take 2 to 4 Weeks to Process

If you are subject to medical underwriting, you cannot expect instant approval. When you submit your Medigap application, it goes to the insurance company's underwriting department. This process generally takes between two and four weeks.

During this time, the insurance company will review your health questionnaire. They may pull your prescription drug history from national databases to see what medications you take, as this gives them a clear picture of your underlying health conditions. In some cases, they may request attending physician statements, which means they will contact your doctors to get copies of your medical records. They might also require a brief telephone interview to clarify your answers.

Because this process takes time, you must plan ahead. You do not want to wait until the last week of the Annual Enrollment Period to start your application. If you wait too long, your application might not be approved before the enrollment window closes, leaving you stuck in your Medicare Advantage plan for another full year.

Step-by-Step Guide to Dropping Advantage for Medigap

Switching your coverage requires careful coordination. If you do things in the wrong order, you could end up with a gap in coverage or find yourself completely uninsured. Follow this step-by-step checklist to ensure a safe and smooth transition.

• Step 1: Evaluate your health and eligibility. Determine if you have a guaranteed issue trial right or if you live in a state with special protections. If not, be prepared to answer health questions. Gather a list of your current medications and medical conditions.
• Step 2: Compare Medigap rates. Use a trusted platform to see what plans cost in your area. You can compare Medicare Supplement rates to find a plan that fits your budget.
• Step 3: Apply for Medigap FIRST. This is the most crucial step. Do not cancel your Medicare Advantage plan yet. Submit your Medigap application and go through the medical underwriting process. You must wait until you receive official confirmation that you have been approved.
• Step 4: Enroll in a standalone Part D plan. Once your Medigap policy is approved, enroll in a Part D prescription drug plan. You can do this during the AEP (Oct 15 - Dec 7) or the MA OEP (Jan 1 - Mar 31). Enrolling in a Part D plan will automatically trigger the disenrollment from your Medicare Advantage plan when the new coverage starts.
• Step 5: Confirm your cancellation. Even though enrolling in Part D usually cancels your Advantage plan automatically, it is always wise to call your Medicare Advantage insurer to confirm that your policy will end on the exact day your new Medigap and Part D plans begin.

Check Your Rates on Genie Medicare

Navigating the rules of Medicare can feel overwhelming, but finding the right price shouldn't be. At Genie Medicare, we believe in granting your Medicare rate wish with total transparency. You can compare rates for Medigap, Medicare Advantage, and Part D plans in your ZIP code in about 30 seconds. We show you the prices first, with absolutely no name, phone number, or email address required to look. If you decide you want help navigating medical underwriting or trial rights, you can easily contact us for free help from a licensed agent. Take control of your healthcare today and see how much you could save.