For standard prescription drug coverage, you’ll need to have at least Medicare Part A or Medicare
Part B, though you’ll also be eligible for the plan if you’re enrolled in both Medicare Part A and Part B. It’s also important that you live in a service area that offers one of these prescription drug plans.
If you’re considering applying for a Medicare Advantage plan, there are a few additional eligibility requirements that you should keep in mind. For instance, you need to be enrolled in both Medicare Part A and Part B and will also need to live in a service area that include Medicare Advantage plans. In the vast majority of cases, it’s also a requirement that you can’t have end-stage renal disease.
For either of these plans, you’ll typically need to be at least 65 years old to be eligible for enrollment. However, it is possible for you to qualify for Medicare Part D coverage if you’re under 65 years old and have been receiving social security disability insurance. To qualify, you will need to have been receiving these checks for two years before enrolling.