Original Medicare
(Part D)
Covering your prescription drugs.
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What Is Medicare Part D?
Also known as Medicare Prescription Drug Plans, or “PDPs”, Part D plans add drug coverage to your existing insurance plan. This extra coverage can be added to Original Medicare, along with some Medicare Cost Plans, Medicare PFFS plans, and Medicare MSA plans. If you are on a Medicare Advantage plan that covers prescription drugs, you cannot join a Part D plan.
What Does It Cover?
What drugs are covered by your Part D depends on the type of drug. Every Medicare drug plan provides a list of drugs it covers. This list is called a formulary, and the drugs are organized in tiers depending on what they are. You can generally expect to pay more for a drug listed in the higher tier than a drug listed in the lower tier, though you or your prescriber can ask your plan for an exception in some instances.