Medicare Prescription Drug Plan (Part D)

A Medicare Prescription Drug Plan—also known as Part D—helps cover the cost of brand‑name and generic prescription medications. These plans are offered by Medicare‑approved private insurance companies and can be added to Original Medicare or included within certain Medicare Advantage plans.

What Part D Covers

• Most common prescription drugs, including many brand‑name and generic options

• Vaccines not covered by Part B, such as shingles shots

• Insulin at a maximum $35 copay under current program rules

How It Works

• Each plan has its own list of covered drugs (formulary) and pricing.

• You pay a monthly premium, plus any copays or deductibles depending on the plan.

• Enrolling on time helps you avoid late‑enrollment penalties.

Why Part D Matters

Part D helps protect you from high medication costs and ensures you have access to the prescriptions you need to stay healthy.