Special Enrollment Periods When a Medicare Advantage Plan Ends

Short answer: When a Medicare Advantage plan ends, many members receive a Special Enrollment Period, or SEP, that lets them change coverage outside the usual annual enrollment period. The exact dates depend on the reason the plan ends.

Common enrollment windows

If a plan’s Medicare contract is not renewed for the next year, Medicare currently lists a Special Enrollment Period from December 8 through the last day of February. If a plan ends its contract with Medicare, or the parties agree to end it, Medicare lists a window beginning two months before the contract ends and continuing through one full month afterward. Other rules apply when Medicare terminates a contract or when a person moves outside a service area. Always use the dates in the termination notice and confirm them with Medicare. A single deadline should not be applied to every cancellation situation.

What changes may be available?

• Join another Medicare Advantage plan. • Return to Original Medicare. • Join a stand-alone Part D prescription drug plan when eligible. • Investigate Medigap guaranteed-issue rights when returning to Original Medicare.

Prepare before enrolling

Write down every medication, dosage, pharmacy, doctor, hospital, medical supplier, and scheduled procedure. Compare total expected costs, not only the premium. Verify networks and formularies directly, and confirm the new plan’s effective date.

Avoid common mistakes

• Waiting until the final day to compare coverage. • Assuming every plan from the same insurer uses the same provider network. • Returning to Original Medicare without considering Part D. • Discarding the termination letter. • Choosing a plan based only on dental, vision, or other extra benefits.

Frequently asked questions

Do I have to wait for Open Enrollment? - Not necessarily. A qualifying plan termination or move can allow a change outside the annual October 15–December 7 period. Is every SEP two months? - No. Timing varies by qualifying event. When does new coverage begin? - It depends on the SEP, the enrollment date, and the coverage selected. Confirm the effective date before receiving non-emergency care. Official resources - Current Medicare SEP rules (https://www.medicare.gov/basics/get-started-with-medicare/get-more-coverage/joining-a-plan/special-enrollment-periods) · Medicare Plan Compare (https://www.medicare.gov/plan-compare/)