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What Does Medicare Part D Cover?

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Medicare Part D covers prescription drugs. You can get Part D coverage by adding on a standalone Part D plan to your Original Medicare coverage, or you can find a Medicare Advantage plan that includes prescription coverage as an extra benefit.

Keep in mind that if you choose the Medicare Advantage route, you have to be enrolled in Original Medicare before joining a Medicare Advantage plan! 


Each Part D plan has a list of prescription drugs that it covers. This list is known as a formulary. All Part D plans are required to cover two drugs from each class. They are also required to cover all drugs in six specific categories, which are:

✔ Immunosuppressants
✔ Antipsychotics
✔ Antidepressants
✔ Anticancer
✔ Anticonvulsants
✔ HIV/AIDS drugs

Part D will NOT cover:

𝙓 Cosmetic drugs
𝙓 Fertility or erectile dysfunction medications
𝙓 Weight loss or weight gain drugs
𝙓 Over-the-counter drugs

Part D Tiers
Part D plans will also generally divide the prescription drugs they cover into tiers to lower costs. The tiers will vary depending on the plan, but an example of what they may look like can look something like this:

Tier 1 – Generic prescriptions with the lowest copayment
Tier 2 – Preferred, brand-name prescriptions with a medium copayment
Tier 3 – Non-preferred, brand-name prescriptions with a high copayment
Specialty Tier – High cost prescriptions with the highest copayment

Typically, a drug listed in a lower tier will be less expensive than a drug in a higher tier.

Learn More About Part D With One of Our Advisors.

We are dedicated to helping you navigate the Medicare market by providing you with all the information and resources you need to make confident decisions for your coverage. To learn more about Part D and what it covers, give us a call today!

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