Medicare Advantage Open Enrollment 2024 Plans. If you already have a medicare advantage (ma) plan, the medicare advantage open enrollment period (ma oep) is when you can enroll in another medicare advantage. The october 15 through december 7 period each year when you can change your medicare coverage.

People in medicare advantage plans can make one change from january through march to go to another advantage plan. At this point, you only have a short amount of time to make changes to your medicare coverage for 2025, since.