How does the Medicare Prescription Drug Program work? - Medicare and You - A Guide to Medicare

How Does Medicare Prescription Drug Coverage Work?
After you have joined the Medicare drug plan you want, the plan will mail you membership materials including a plan member card you use when you get your prescriptions filled. When you use the card, you will pay the Copayment, Coinsurance, and/or Deductible, if any.

In Medicare Advantage Plans that include Medicare prescription drug coverage (Part D), your health care and drug usage is coordinated, with an emphasis on preventive care to keep you healthy.

(Primary Source: Centers for Medicare and Medicaid Services - Medicare and You Handbook. This content may have been enhanced by this site to include further examples, explanations, and links.)