Initial Enrollment Period - Part D (Drug Plan)
What it is: Your first chance to get Medicare prescription drug coverage.
Who it’s for: People newly eligible for Medicare who want drug coverage through a stand-alone Part D plan or an MA plan that includes drug coverage (MA-PD).
When it happens: Usually lines up with your Medicare Initial Enrollment Period around age 65.
What you can do:
Enroll in a stand-alone Part D plan (PDP), or
Enroll in an MA-PD plan if you’re choosing Medicare Advantage with drug coverage.
Big watch-out: Going without Part D (or other creditable drug coverage) when you’re expected to have it can lead to a late enrollment penalty later. Also, every plan has its own formulary (covered drug list), tiers, and rules—so don’t assume two plans cover medications the same way.
Note:
Late enrollment penalty may apply if you go without creditable drug coverage when required.
Time Period
Eligibility-based
Approx Time Frame
Usually aligns with your Medicare IEP
Trigger Event
First Medicare eligibility (often turning 65)