Does Medicare cover a CGM?
Yes — if you have diabetes and use insulin or have a history of problem low blood sugar. Here is exactly who qualifies, what it costs, and how we get it to your door.
The short answer: Medicare Part B covers a continuous glucose monitor (CGM) such as the FreeStyle Libre 3 or Dexcom G7, plus its sensors, when you have diabetes, and you use insulin or have had problem low blood sugar, and your doctor has seen you in the last 6 months.
Who qualifies
You have diabetes (type 1 or type 2) and at least one of these is true:
- You use insulin.
- You have a history of problem low blood sugar (hypoglycemia). That means repeated lows under 54 mg/dL that keep happening even after your doctor changed your treatment, or at least one severe low where you needed someone else’s help to recover.
You (or a caregiver) also need to be trained to use the CGM — your doctor’s office or our team can walk you through it.
What you need from your doctor
- A visit in the last 6 months — in person or a Medicare-approved telehealth visit — where your doctor confirms you qualify.
- A prescription for the CGM.
- Notes in your chart showing you use insulin, or documenting your low-blood-sugar history.
- A follow-up visit every 6 months after that, so Medicare keeps covering your sensors.
Don’t have the paperwork? That’s normal. We contact your doctor’s office directly to get what Medicare needs.
What it costs
CGMs and diabetic shoes are covered under Medicare Part B. After you meet your yearly Part B deductible, Medicare pays 80% of the approved amount and you pay 20% coinsurance. If you have a Medigap (supplement) plan, Medicaid, or another secondary plan, it may pay some or all of that 20%. We check your coverage and tell you your exact cost before anything ships — no surprise bills.
On a Medicare Advantage plan? The same equipment is covered, but your plan sets its own costs and may need prior approval. We check that for you too.
How it works with AA Medical Supply
- Check your coverage. Send us your details or call — it takes a few minutes.
- We handle your doctor. We request the prescription and chart notes from your doctor’s office.
- We confirm your cost. You hear your exact out-of-pocket cost before anything ships.
- Delivered to your door. Your CGM and sensors ship to your home, then refills arrive automatically on schedule.
See the CGMs we carry →
Common questions
Does Medicare cover CGMs for type 2 diabetes?
Yes. Coverage depends on your treatment, not your diabetes type: if you have type 2 diabetes and use insulin, or have a history of problem low blood sugar, you can qualify.
Do I have to take insulin several times a day?
No. Medicare used to require multiple daily insulin injections, but that rule was dropped. If you use insulin, you can qualify.
What if I don’t use insulin?
You can still qualify if your records show problem low blood sugar: repeated lows under 54 mg/dL despite treatment changes, or at least one severe low where you needed help to recover.
Which CGMs does Medicare cover?
FDA-cleared CGMs, including the FreeStyle Libre 3 and Dexcom G7, which we supply.
How often do I get new sensors?
Sensors are replaced on a regular schedule depending on the device. We set up automatic refills so you never run out, and remind you before each shipment.
Can I get a CGM with Medicaid or private insurance?
Often, yes. Most plans cover CGMs, though the rules vary by plan. We check your specific coverage for you.
Last reviewed September 2026. Coverage rules are set by Medicare, Medicaid and your plan, and can change — we confirm your specific coverage before anything ships. Sources: Medicare.gov: CGMs · CMS LCD L33822 (Glucose Monitors).