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Enrollment Periods

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There are three enrollment periods.

Annual Enrollment Period (AEP)*:

Between October 15 and December 7, anyone can join, switch or drop a Medicare Advantage Plan. Your coverage will begin on January 1, as long as the plan gets your request by December 7.

Making changes to your coverage after December 7:

Between January 1 and February 14, if you're in a Medicare Advantage Plan, you can leave your plan and switch to Original Medicare. If you switch to Original Medicare during this time, you'll have until February 14 to also join a Medicare prescription drug plan. Your coverage will begin the first day of the month after the plan gets your enrollment form.

During this period, you can't do the following:

  • Switch from Original Medicare to a Medicare Advantage Plan
  • Switch from one Medicare Advantage Plan to another
  • Join, switch or drop a Medicare Medical Savings Account Plan

Initial Enrollment Period (IEP):

When you first become eligible for Medicare, you can join during the 7 month period that starts 3 months before the month you turn 65, includes the month you turn 65 and ends 3 months after the month you turn 65.

Enrollment Period Calendar

Special Enrollment Period (SEP):

In most cases, you must stay enrolled for the calendar year starting the date your coverage begins. However, in certain situations, you may be able to join, switch or drop a Medicare Advantage Plan during a Special Enrollment Period. Below is a list of some, but not all, of these situations:

  • Moving outside of the plan's approved service area
  • Entering or leaving a qualified institution, such as a nursing home
  • Becoming eligible for low income subsidy assistance
  • Becoming enrolled in Medicaid

Contact your plan if any of these situations apply to you.

For more information, refer to the Medicare and You Handbook.

*Dates subject to change after January 1, 2018.