Medicare General Enrollment Period | AARP® Medicare Plans from UnitedHealthcare®

Medicare General Enrollment Period

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Miss your Initial Enrollment Period? You may still have time to enroll in Medicare.


The General Enrollment Period (GEP) is like make-up time. It's when you can enroll in Part A, Part B or both if you didn't sign up during your Initial Enrollment Period.

The GEP is January 1 through March 31 every year. Coverage takes effect on the following July 1.

What you can do during the General Enrollment Period?

  • You can enroll in Part A, Part B or both.
  • You may be eligible to sign up for a Medicare Advantage plan (Part C) or a Medicare prescription drug plan (Part D) April 1 - June 30 of the same year.

What do you want to do next?


Or learn about Medicare coverage choices