Does Medicare Cover the Dexcom G7?

Is the Dexcom G7 covered by Medicare?

Yes. The Dexcom G7 is a therapeutic (also called non-adjunctive) continuous glucose monitor, which means it is approved by the FDA to make treatment decisions without a separate fingerstick test to confirm the reading. Medicare covers this type of CGM under Part B's durable medical equipment (DME) benefit.

Medicare has covered therapeutic CGM devices like the Dexcom under the DME benefit for several years, so coverage of the G7 is well established. It is treated as durable equipment because you use it repeatedly to monitor your glucose trends over time.

Because the G7 falls under the DME benefit, it is covered by Part B, not by your Part D drug plan. This is a common point of confusion: the device, sensors, and supplies come through Part B medical equipment suppliers, not the pharmacy drug benefit.

Who qualifies: eligibility rules

Medicare covers a CGM like the Dexcom G7 only when specific conditions are met. You do not need to have type 1 diabetes, and you do not always need to use insulin.

• Your doctor or treating provider must order (prescribe) the CGM, and you must have been seen for diabetes management in the prior 6 months.
• You must have diabetes AND either take insulin (any type) OR have a documented history of problematic hypoglycemia. Medicare defines this as recurrent level 2 low-blood-sugar events (glucose below 54 mg/dL) that persist despite attempts to adjust medication or your treatment plan, or at least one level 3 event (a severe low causing altered mental or physical state that required help from another person).
• You (or your caregiver) must have had enough training to use the CGM as directed.
• After you start, your provider must see you in person or by Medicare-approved telehealth within 6 months, and at least every 6 months after that, to assess your CGM and diabetes treatment plan.
• The CGM must be prescribed in line with its FDA-approved use.

Type 2 diabetes without insulin, prediabetes, and gestational diabetes

You can qualify for a Medicare-covered Dexcom G7 even if you have type 2 diabetes and do not use insulin, but only if you have a documented history of problematic hypoglycemia (recurrent or severe low-blood-sugar events that meet Medicare's documentation standard) and your doctor orders the device. Dexcom notes that Medicare covers the G7 for people with diabetes who are on any type of insulin or who have a history of problematic low blood glucose events.

If you have type 2 diabetes, do not use insulin, and have no documented problematic hypoglycemia, you likely will not meet Medicare's CGM coverage criteria. Talk with your doctor about whether your history qualifies.

Coverage is tied to having diabetes and meeting the rules above. Prediabetes and gestational diabetes are separate situations; if you are unsure whether your condition qualifies, your treating provider and DME supplier can confirm your eligibility before you order.

How much does the Dexcom G7 cost with Medicare in 2026?

Under Part B, after you meet your annual Part B deductible you pay 20% coinsurance of the Medicare-approved amount for the device and supplies, as long as your supplier accepts assignment (agrees to Medicare's approved price).

Here is how the 2026 numbers work:

• Part B deductible: $283 per year (2026). You pay covered DME costs up to this amount before coinsurance begins.
• Coinsurance: 20% of the Medicare-approved amount for the G7 device, sensors, and transmitter/reader supplies.
• Part B premium: $202.90 per month (standard 2026 amount) is required to keep your Part B benefits, which is what pays for the CGM.
• Your exact out-of-pocket cost depends on the Medicare-approved amount your supplier charges, which can vary. If your supplier does not accept assignment, you could pay more. Ask the supplier for the approved amount and your 20% share before you order.

What's covered, the 15-Day sensor, and using your phone

Medicare covers the CGM device plus the necessary supplies, including sensors and the transmitter or reader. The system must include a compatible Medicare-covered reader (receiver), and Medicare requires you to actually use that receiver to keep coverage. You may also use a smartphone alongside the receiver to view your readings.

• Covered: the Dexcom G7 device, sensors, and transmitter/reader supplies.
• A compatible receiver must be part of the system AND you must use it. You can also use a smartphone in addition to the receiver, but Medicare does not cover supplies used with a smartphone only.
• Newer option: the Dexcom G7 15-Day system offers up to about 15.5 days of wear (including a 12-hour grace period), which reduces how often you change sensors.
• Medicare generally does not cover both a CGM and routine fingerstick test strips for the same purpose, because a therapeutic CGM like the G7 is designed to replace routine fingersticks. Ask your provider about your specific needs.

Medicare Advantage, Medigap, and where to get the G7

Medicare Advantage (Part C) plans must cover everything Original Medicare Part B covers, including CGMs like the Dexcom G7. However, Advantage plans may require you to use specific in-network suppliers and may have different copays or cost-sharing. Check your plan's Evidence of Coverage and ask which suppliers are in network.

If you have Original Medicare with a Medicare Supplement (Medigap) policy, your Medigap plan may help pay the 20% Part B coinsurance for the CGM, depending on which Medigap plan you have. This can significantly lower your out-of-pocket cost.

Because the Dexcom G7 is covered under the DME benefit, you typically get it from a Medicare-enrolled DME supplier or a pharmacy that bills Medicare Part B. Confirm that the supplier accepts Medicare assignment before ordering to keep your costs predictable.