Enrollment Timelines

Enrollment timelines depend on the plan and your eligibility


Medicare beneficiaries can enroll in or switch their Medicare Part C and Part D coverage only during certain times of the year. If you are newly enrolling in Medicare, you have the three months before, the month of, and three months after your 65th birthday to enroll. See table below for more information.

Eligible beneficiaries may enroll in MedStar Medicare Choice Dual Advantage (HMO SNP) or MedStar Medicare Choice Care Advantage (HMO SNP) at any time. Click here to view your eligibility for the different options available to you.

You may have other situations that would allow you to enroll in Medicare or change your Medicare Advantage plan, such as moving outside the plan’s service area, losing employer group coverage, or qualifying for extra help with prescription drug costs. MedStar Medicare Choice can help you determine if you meet these criteria. Give us a call at 855-242-4870 (TTY: 855-250-5604) and we’ll help you understand your personal enrollment timeline. Our hours of operations are 8 a.m. to 8 p.m., seven days a week.*


Starting Medicare

Already on Medicare

Initial Election Period

Annual Election Period

Medicare Advantage Disenrollment Period

3 months before, the month of, and 3 months after your 65th birthday

October 15 – December 7

January 1 – February 14

You may initially enroll into a Medicare Advantage plan and Part D prescription drug plan.

Compare plans and find the best plan for you for the next year. You can add or drop Part D prescription drug coverage and change to a Medicare Advantage plan or to Original Medicare. Your coverage will be effective January 1.

You can only disenroll from a Medicare Advantage Plan. If you disenroll, you will be on Original Medicare and can join a prescription drug plan. Your coverage will be effective the first of the following month.


H9915_18_4013 -  Approved

Last Updated Date: 10/4/2017