One of the most common concerns we hear from Medicare Advantage enrollees is this: "I joined Medicare Advantage, but it's not working out. Can I switch back to Original Medicare â and can I still get a Medigap plan?"
The answer to both questions is often yes â but timing, eligibility, and state rules matter significantly. This guide walks through every scenario.
Yes, You Can Switch â But Timing Matters
You can switch from Medicare Advantage back to Original Medicare, but you can only do it during specific enrollment windows. Outside of these windows, you generally cannot make the change except in certain qualifying circumstances.
There are three main pathways:
- Annual Enrollment Period (AEP) â October 15 through December 7 each year
- Medicare Advantage Open Enrollment Period (MA OEP) â January 1 through March 31
- Special Enrollment Period (SEP) â triggered by qualifying events such as your plan leaving your area
The AEP is the most widely used and gives you the most flexibility â you can drop Medicare Advantage entirely and return to Original Medicare, starting January 1 of the following year.
Annual Enrollment Period (October 15 â December 7)
During AEP, you can:
- Drop your Medicare Advantage plan and return to Original Medicare
- Switch from one Medicare Advantage plan to another
- Join, switch, or drop a Medicare Part D drug plan
Changes made during AEP take effect January 1 of the following year. If you disenroll from Medicare Advantage during this period, you automatically revert to Original Medicare â Parts A and B.
Medicare Advantage Open Enrollment Period (January 1 â March 31)
During the MA OEP, people who are already enrolled in a Medicare Advantage plan can make one switch. That switch can be to a different Medicare Advantage plan or back to Original Medicare.
If you switch to Original Medicare during the MA OEP, your coverage changes on the first day of the following month after your enrollment is processed.
The Trial Right: Switch in Your First 12 Months Without Underwriting
If you joined Medicare Advantage for the first time and decide within the first 12 months that it's not right for you, you have a powerful protection: the Medicare Advantage trial right.
This trial right gives you guaranteed issue access to Medigap â meaning you can buy a Medigap supplement policy without going through medical underwriting. No Medigap insurer can reject you or charge higher premiums because of your health status during this window.
Under the trial right, you have guaranteed access to Medigap Plans A, B, C (if first eligible before Jan 1, 2020), F (if first eligible before Jan 1, 2020), K, and L.
For a complete breakdown of trial rights and which Medigap plans are available under guaranteed issue, see our guide: What Is a Medicare Trial Right?
Can You Get Medigap After Leaving Medicare Advantage?
This is the question most people really want answered. The honest answer: it depends on your state and your circumstances.
| Situation | Can You Get Medigap? |
|---|---|
| First 12 months in Medicare Advantage (trial right) | Yes â guaranteed issue, no underwriting |
| Your plan leaves your service area or goes bankrupt | Yes â guaranteed issue applies |
| You lose other coverage (employer, union plan) | Yes â guaranteed issue applies |
| After 12+ months in Medicare Advantage (most states) | Subject to underwriting â may be denied or priced higher |
| New York, Massachusetts, Connecticut, Maine | Yes â these states offer year-round guaranteed issue |
If you don't have a guaranteed issue right and your state doesn't offer year-round protections, Medigap insurers in most states can ask about your health history and may decline your application or charge you more based on pre-existing conditions.
This is one of the main reasons the timing of your switch matters so much. If you're thinking about switching from Medicare Advantage to Original Medicare + Medigap, a licensed advisor can help you understand what's available in your state and whether you qualify for guaranteed issue.
Don't Forget Part D Drug Coverage
When you switch from Medicare Advantage to Original Medicare, your prescription drug coverage ends along with the Medicare Advantage plan. Original Medicare does not include drug coverage.
You have two options for drug coverage after switching:
- Standalone Medicare Part D plan â enroll within 63 days of losing your Medicare Advantage coverage to avoid a Part D late enrollment penalty
- Some Medigap plans do not include drug coverage â you'll always need to enroll in a separate Part D plan
Step-by-Step: How to Switch
- Confirm you're in an eligible enrollment window (AEP, MA OEP, or an applicable SEP)
- Decide on your Medigap strategy first â before you disenroll from Medicare Advantage, confirm whether you have a guaranteed issue right, and which Medigap plans are available to you without underwriting
- Apply for a Medigap policy â contact Medigap insurers in your state and tell them you qualify for guaranteed issue (if applicable). Medigap coverage starts when your Medicare Advantage coverage ends.
- Disenroll from your Medicare Advantage plan â call your plan directly or submit a disenrollment form. You can also call 1-800-MEDICARE.
- Enroll in a Part D drug plan â within 63 days of your Medicare Advantage coverage ending, enroll in a standalone Part D plan
- Confirm your Original Medicare is active â your red, white, and blue Medicare card covers all Medicare-participating providers nationwide
Thinking About Switching Back?
A licensed advisor can check your guaranteed issue rights, identify Medigap options available in your state, and walk you through the exact steps â at no cost to you.
Call 1-866-340-3441Common Reasons People Switch Back to Original Medicare
Understanding why others have made this switch can help you evaluate whether it's right for you:
- Doctor network restrictions: Medicare Advantage HMOs limit you to in-network providers. If your preferred doctors aren't in-network, switching to Original Medicare gives you access to any Medicare-accepting provider.
- Out-of-state care: Original Medicare covers you nationwide. Medicare Advantage plans typically only cover out-of-area care in emergencies.
- Specialist access: Some people find that Medicare Advantage HMOs make it difficult to see specialists without referrals. Original Medicare allows direct access to specialists.
- Predictable costs: With a Medigap supplement alongside Original Medicare, many people find their out-of-pocket costs more predictable â most or all of the Part A and B cost-sharing is covered.
- Health changes: A new diagnosis or upcoming surgery may prompt someone to evaluate whether their Medicare Advantage network is adequate.
Frequently Asked Questions
What if I miss the Annual Enrollment Period?
If you miss AEP (October 15 â December 7), your next opportunity to switch from Medicare Advantage to Original Medicare is generally the MA OEP (January 1 â March 31), or a qualifying Special Enrollment Period. Missing AEP doesn't permanently lock you in â you'll have another opportunity within a few months.
Does switching from Medicare Advantage to Original Medicare affect my Social Security?
No. Medicare Advantage plans are a different enrollment choice from Social Security. Switching Medicare coverage does not affect your Social Security benefits. Your Medicare Part B premium continues to be deducted from Social Security regardless of which Medicare coverage you have.