CHRONIC · Parts B, D
Does Medicare Cover Diabetes?
What Medicare Covers for Diabetes
- Insulin copay capped at $35/month under Part D (all plans)
- CGMs covered under Part B for insulin-using beneficiaries
- Annual diabetic eye exam covered
- Therapeutic shoes for diabetic neuropathy
Watch-Outs
- Strips for non-insulin users have quantity limits
- CGM transmitter replacement cycle is Part B, sensors are supplies
Original Medicare vs Medicare Advantage for Diabetes
Under Original Medicare + Medigap, you face no networks and minimal out-of-pocket after the Medigap pays. Under a Medicare Advantage plan, you may have lower monthly premiums and extra benefits (dental/vision/hearing) but face networks, prior authorization, and an annual in-network out-of-pocket maximum.
How to Verify Coverage for Your Plan
- Review your plan's Evidence of Coverage (EOC) or the Medicare & You handbook.
- Use the Medicare.gov coverage search to check a specific service.
- Call your plan's member services and request a written coverage determination.
- If denied, file an appeal (redetermination) within 120 days.
Related
Disclaimer: Content is educational. Not medical or insurance advice. Not affiliated with or endorsed by the U.S. government or the federal Medicare program.
Frequently Asked Questions
Which Medicare parts cover diabetes?+
Parts B, D. Exact coverage depends on the service and setting.
Is there a copay or coinsurance?+
Original Medicare Part B generally has a 20% coinsurance after the annual deductible. Medigap plans fill that gap. Medicare Advantage plans use copays and an annual out-of-pocket maximum.
Do I need prior authorization?+
Original Medicare rarely requires prior auth for covered services. Medicare Advantage plans frequently require it for higher-cost services and drugs — check your plan's Evidence of Coverage.
Does Medicare cover diabetes treatment outside the US?+
Generally no. Medigap plans C, D, F, G, M, and N include limited foreign-travel emergency coverage — see our Medigap guide.
How can I appeal a denied claim?+
Five levels of appeal are available starting with redetermination. A licensed agent or a SHIP counselor can help you file.