Yes, you can switch from a Medicare Advantage (MA) plan to a Medicare Supplement (Medigap) plan, but it's complex and depends heavily on timing (enrollment periods) and health (medical underwriting), often requiring you to return to Original Medicare first; you're not guaranteed approval unless you have a guaranteed issue (GI) right (like during your first year in MA or if your MA plan ends) or live in a state with year-round options. You must not cancel your MA plan until the Medigap plan is approved, as you risk losing coverage, and you'll need a separate Part D plan for prescriptions.
Which Is Better: Medicare Advantage or Medicare Supplement? There's no one-size-fits-all best plan. Medicare Advantage is often chosen by people looking for extra benefits and lower upfront costs, while Medigap is preferred by those who want provider flexibility and less unpredictability with medical bills.
Yes, you can switch back to Original Medicare from a Medicare Advantage plan during specific enrollment periods (like the Annual Enrollment Period: Oct 15–Dec 7, or the MA Open Enrollment: Jan 1–Mar 31) or via Special Enrollment Periods (SEPs) for life events, but you may need to buy a Medigap plan separately and face underwriting for it. Joining a Part D drug plan when you switch automatically disenrolls you from your Advantage plan, making the transition seamless for drug coverage.
People leave Medicare Advantage (MA) plans due to difficulty accessing needed care (especially with worsening health), restrictive provider networks, complex prior authorization rules, and dissatisfaction with care quality, often feeling trapped as their health needs grow despite initial low costs and extra perks that become limiting. Issues with provider availability, network changes, and sometimes misleading marketing also drive disenrollment, pushing people back to Traditional Medicare for greater freedom, notes KFF.
There's no penalty for leaving a Medicare Advantage plan itself. However, if you now need to enroll in a stand-alone Part D prescription drug plan, you could face a Part D late-enrollment penalty if you went without creditable drug coverage for 63+ days.
You can buy a Medigap policy once you switch to Original Medicare. You have 63 days after your current Medicare Advantage Plan coverage ends to buy a Medigap policy. Keep any letters, notices, emails or claim denials from your Medicare Advantage Plan in case you need to prove your coverage ended.
Vermont, Utah and Minnesota topped the Commonwealth Fund's Medicare performance scorecard in 2025, whereas Kentucky, Mississippi and Louisiana struggled the most.
The "best" Medicare plan for seniors depends on individual needs, but top-rated providers for Medicare Advantage (Part C) in 2026 include Humana, UnitedHealthcare, Aetna, and Blue Cross Blue Shield (BCBS), offering nationwide coverage, large networks, $0 premium options, and extra benefits like dental/vision, while Medigap (Medicare Supplement) plans like Plan F provide comprehensive Original Medicare cost coverage. Key factors are your doctors, prescriptions, budget, and preference for network flexibility (MA) or broad coverage (Medigap).
Key takeaways:
You can switch from a Medicare Advantage plan to original Medicare during two periods each year: Medicare Advantage open enrollment (January 1 to March 31) and Medicare open enrollment (October 15 to December 7).
The best Medicare Supplement companies in 2026 include UnitedHealthcare/AARP, Cigna, Humana, Aetna, and Blue Cross Blue Shield. Plan G remains the most popular Medigap plan for new enrollees, offering comprehensive coverage with predictable costs.
Medicare Advantage plans may offer more coverage than Original Medicare. For instance, many Medicare Advantage plans cover hearing aids, vision care, and dental care. Plus, many Medicare Advantage plans have $0 premiums or lower premiums than Medigap plans.
Disenroll from your plan and return to Original Medicare anytime between January 1 – March 31. If you disenroll and return to Original Medicare, you are also given a Special Election Period (SEP) to enroll in a Part D plan during this time.
People leave Medicare Advantage (MA) plans due to difficulty accessing needed care (especially with worsening health), restrictive provider networks, complex prior authorization rules, and dissatisfaction with care quality, often feeling trapped as their health needs grow despite initial low costs and extra perks that become limiting. Issues with provider availability, network changes, and sometimes misleading marketing also drive disenrollment, pushing people back to Traditional Medicare for greater freedom, notes KFF.
The "Medigap 6-Month Rule" refers to your Medigap Open Enrollment Period, the best time (first 6 months after turning 65 and enrolling in Medicare Part B) to buy a Medicare Supplement Insurance (Medigap) policy because insurance companies can't deny coverage or medically underwrite you, regardless of pre-existing conditions, allowing you to get any plan available in your state. Missing this window means insurers can deny you or charge more due to health issues, limiting your choices significantly, though some states offer additional protections.
Medigap premiums are usually higher than Medicare Advantage, but out-of-pocket costs when you get care are typically much lower. A Medigap plan pays your Part A deductible and some or all of your Part B copays or coinsurance, as well as other Medicare-approved expenses. Additional provider access.