Medicare Advantage Open Enrollment 2024. You can enroll in a medicare advantage plan during your initial enrollment period, during the annual open enrollment period, or during certain special enrollment periods. 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 plan or go back to original medicare.

Increasingly, medicare beneficiaries are gravitating towards medicare advantage plans—largely because they think they’ll pay less for their health care than with original. Any changes to your medicare plans will take effect on january 1, 2025.