What is a Continuous Glucose Monitor (CGM)?

A continuous glucose monitor (CGM) is a small, wearable device that continuously checks your glucose levels—no finger sticks needed.

Instead of using blood, CGMs measure glucose in the interstitial fluid under your skin. They show your current level and whether it’s going up, down or holding steady.

The benefits of a CGM

Here are some benefits of using a CGM:

• See your glucose level anytime without finger sticks.
• Track the direction of your glucose level: rising, falling, gradually, or quickly.
• Understand how and when your body reacts to food, activity, insulin, medication, hormones, stress, and more.
• Customize alerts for when your glucose drops too low.
• Customize alerts for when your glucose spikes too high.
• Catch and treat high glucose levels earlier.
• Catch and treat low glucose levels earlier.
• Work toward meeting your A1c.
• Track the percentage of your day spent in, above, or below your goal ranges (this is called “time-in-range”).
• Pair your CGM with an insulin pump, featuring extra capabilities for closed-loop systems.
• Share CGM data easily with your healthcare team using your smartphone app.
• Share real-time CGM data with family or friends via their smartphones.
• Review glucose levels whenever you want, using graphs and reports.

How do I get a CGM?

• Getting a CGM starts with asking your doctor for a prescription.
• Discuss device options with your doctor to find the best fit for you.
• Check which brands are covered by your insurance, including Medicaid and Medicare.
• Dexcom CGMs and Abbott’s FreeStyle Libre are covered by Medicare for those who qualify.
• For Medicare or Medicaid coverage, contact your state health exchange to confirm eligibility.

CGMs available today

Here are today’s available CGM brands and models.

CGMs have transformed diabetes management, offering a simple and effective way to track your glucose levels.

From real-time alerts to personalized insights, CGMs empower you to make smarter decisions about your health, helping you live safely and achieve your goals with confidence.