CGM
Also known as: Continuous Glucose Monitor
A wearable sensor that measures glucose in interstitial fluid every 1–5 minutes, continuously.
A continuous glucose monitor consists of a small sensor wire inserted just under the skin, a transmitter that sends data wirelessly, and a receiver or smartphone app that displays real-time glucose readings. Most CGMs also show trend arrows — whether glucose is rising or falling fast — which is information a traditional fingerstick can never provide.
Current major CGM brands include Dexcom G7, FreeStyle Libre 3, and Eversense E3. Each has different wear duration, accuracy, and alert capabilities.
Medicare Part B covers CGM systems as durable medical equipment when certain documentation requirements are met: a diabetes diagnosis, regular testing documented in medical records, and a prescription from your treating physician. Most Medicare Advantage plans mirror or exceed Part B coverage. Many beneficiaries pay $0 out of pocket for CGM with supplemental coverage.
Frequently asked
What is CGM?
A wearable sensor that measures glucose in interstitial fluid every 1–5 minutes, continuously. A continuous glucose monitor consists of a small sensor wire inserted just under the skin, a transmitter that sends data wirelessly, and a receiver or smartphone app that displays real-time glucose readings. Most CGMs also show trend arrows — whether glucose is rising or falling fast — which is information a traditional fingerstick can never provide.
How does CGM relate to Medicare coverage?
Medicare Part B covers most durable medical equipment related to CGM. Contact us to verify your specific coverage for related diabetic supplies.
Where can I get diabetic supplies related to CGM in Phoenix?
We deliver Medicare-covered diabetic supplies throughout the Phoenix metro area. Call us or complete the form above to verify your coverage.