Medicare Part D Fact Sheet

What is Medicare Part D?
Part D helps cover prescription drugs. Plans are offered by private insurers approved by Medicare.

What Part D Covers

  • Generic and brand-name drugs

  • Drugs on the plan’s formulary (covered drug list)

  • Coverage through tiers (different costs for different drug types)

Costs (2024)

  • Average national premium: $34.70/month

  • Deductible: Up to $545 (varies by plan)

  • Copays/coinsurance vary by drug tier and pharmacy choice

Penalties

If you don’t sign up for Part D when first eligible (and don’t have creditable drug coverage), you pay a late penalty:

  • 1% of the national base premium for each full month you were eligible but not enrolled

  • Added permanently to your monthly premium

Brad’s Story: Brad delayed enrolling in Part D for 20 months after he became eligible. In 2024, his penalty is 20% of $34.70 = $6.94 extra each month, permanently.