Switching From Medicare Advantage to Original Medicare
Short answer
You can leave Medicare Advantage for Original Medicare during an applicable enrollment period. Before switching, separately address Part D coverage and whether you have a protected right to buy Medigap.
Comparison
| Topic | First option | Second option |
|---|---|---|
| Medical coverage after switch | Before: private MA plan administers Part A/B. | After: Original Medicare administers Part A/B. |
| Provider access | MA network rules apply. | Use providers that accept Medicare. |
| Drug coverage | Often integrated MA-PD. | Usually need separate Part D if no other creditable drug coverage. |
| Medigap | Cannot supplement MA cost sharing. | May add Medigap, but underwriting can apply outside OEP/GI rights depending on state/federal protection. |
| Enrollment period | Leave during AEP, MA OEP or qualifying SEP. | Effective date follows the election period used. |
| Out-of-pocket maximum | MA has annual Part A/B maximum. | Original Medicare has no annual Part A/B maximum without supplemental coverage. |
Baseline decision guidance
Confirm Part D and Medigap availability before submitting the MA disenrollment. Do not assume you can automatically regain a former Medigap policy.
Expanded decision overview
Leaving Medicare Advantage for Original Medicare is a multi-part coverage decision, not merely a plan cancellation. The beneficiary must use an applicable enrollment period and separately address prescription coverage and Medigap availability before the change becomes effective.
Important caveats
- Returning to Original Medicare does not guarantee a right to buy any Medigap policy.
- A stand-alone Part D plan is usually needed unless other creditable drug coverage exists.
- Original Medicare has no annual Part A/B out-of-pocket maximum without supplemental protection.
Decision example
A beneficiary leaving MA during the MA Open Enrollment Period may return to Original Medicare and add Part D, but should verify Medigap rights before relying on a supplement to control medical costs.
Questions to verify
- Which enrollment period permits the change?
- Do I have a Medigap guaranteed-issue or trial right?
- When will Part D begin?
- Will my doctors accept Original Medicare?