Apply Online

Apply for enrollment in a MedStar Medicare Choice plan.


Click here to apply online.

If you have any questions during the enrollment process, please call us toll free at 855-242-4870 from 8 a.m. to 8 p.m., seven days a week.* TTY users should call 855-250-5604.

Before you start your online enrollment, make sure you

  • Meet the eligibility requirements for enrolling in a MedStar Medicare Choice Medicare Advantage plan.
  • Have your Medicare card or letter from the Social Security Administration or Railroad Retirement Board handy.
  • Disable pop-up blockers on your computer. Click here if you need help disabling your pop-up blocker.

Note: We recommend using Google Chrome as your Internet browser when using this online enrollment form.

Please see eligibility requirements for more details.

Click here to learn more about enrollment timelines.