If you’re eligible for Medicare, you’re eligible for Part D. To be eligible for Medicare, you must:

  • be at least 65 years old
  • have received Social Security disability payments for at least 2 years, although this waiting period is waived if you receive a diagnosis of amyotrophic lateral sclerosis (ALS) and will be eligible the first month you receive a disability payment
  • have received a diagnosis of end-stage renal disease (ESRD) or kidney failure and need to have dialysis or a kidney transplant
  • be under age 20 with ESRD and have at least one parent eligible for Social Security benefits

Medicare Part D enrollment

The timing of your plan enrollment depends on:

  • first time enrollment when you turn age 65 (from 3 months before until 3 months after you turn age 65)
  • if you’re eligible before age 65 due to disability
  • open enrollment period (October 15 to December 7)
  • general enrollment period (January 1 to March 31)

You might be able to join, leave, or switch plans if you:

  • move into a nursing home or skilled nursing facility
  • relocate out of your plan’s coverage area
  • lose medication coverage
  • your plan doesn’t offer Part D services
  • you want to switch to a plan with a higher star rating

You can also change plans during open enrollment each year.

How to enroll in Medicare Part D

You can enroll in a Medicare Part D plan during initial enrollment for Medicare parts A and B.

If your prescription drug plan isn’t meeting your needs, you can change your Medicare Part D option during open enrollment periods. These open enrollment periods happen twice throughout the year.