Prescription Drug Plans (Part D)

Prescription costs too high? Speak with a qualified expert from our agency on ​Part D Prescription Plans today.

What is a Prescription Drug Plan?

Part D Prescription Drug Plans (sometimes called "PDPs") add prescription drug coverage to Original Medicare, some Medicare Cost Plans, some Medicare Private Fee-for-Service (PFFS) Plans, and Medicare Medical Savings Account (MSA) Plans.
Since Original Medicare does not typically cover prescription medications from a pharmacy, having a standalone prescription drug plan is necessary to avoid a Part D Late Enrollment penalty if you are not obtaining your prescription drug coverage from another health plan, like a Medicare Advantage Plan.

What do drug plans cover?

  • Each Medicare Prescription Drug Plan has its own list of covered drugs (called a formulary). Many Medicare drug plans place drugs into different "tiers" on their formularies. Drugs in each tier have a different cost.​

  • A drug in a lower tier will generally cost you less than a drug in a higher tier. In some cases, if your drug is on a higher tier and your prescriber thinks you need that drug instead of a similar drug on a lower tier, you or your prescriber can ask your plan for an exception to get a lower copayment.​

  • A Medicare drug plan can make some changes to its formulary during the year within guidelines set by Medicare. If the change involves a drug you’re currently taking, your plan must do one of these:​

  • Provide written notice to you at least 60 days prior to the date the change becomes effective.​
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  • At the time you request a refill, provide written notice of the change and a 60-day supply of the drug under the same plan rules as before the change.

Contact us to learn more about the right Medicare Part D Prescription Plan for you.
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San Antonio TX 78229​
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Last updated: September 28, 2026

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