Medicare Insulin Coverage and Costs

Originally published October 7, 2020. Updated October 28, 2026.

Medicare’s insulin coverage has changed since the original 2021 savings-model announcement. Here is how to check your coverage today.

What does covered insulin cost?

A one-month supply of each insulin product covered by Medicare Part B or Part D costs no more than $35, and the insulin deductible does not apply. A plan may charge less. That limit applies to each covered product, rather than to all prescriptions combined.

Part B and Part D cover different situations

Part B covers insulin used with an insulin pump covered as durable medical equipment. Part D may cover injected or inhaled insulin, as well as insulin used with pumps that do not qualify under Part B. Check the exact product and delivery device with your plan or supplier.

Check your plan’s drug list

A plan’s formulary lists the insulin products it covers. Check your exact insulin, preferred pharmacy and any coverage requirements before enrolling. Include your other prescriptions and the plan premium when comparing options.

Needles and other supplies can have separate coverage and costs. The insulin cost limit does not make every diabetes-related item free.

Compare standalone Part D plans

Use our Part D self-service instructions to compare plans using your prescriptions and pharmacy.

For a question about an existing claim or whether your insulin is covered, contact your plan or pharmacist. For help with the Medicare Supplement or Medicare Advantage options we offer, call 217-423-8000.

Sources: Medicare insulin coverage; Medicare & You. Reviewed October 28, 2026.