Understanding Medicare Coverage of the Dexcom G6 and G7

by David Bynon, last updated

Does Medicare Cover Dexcom G6 or G7?

Yes. Medicare will cover the cost of a Dexcom G6 or Dexcom G7 if you meet their criteria. In fact, Dexcom ships Dexcom G6 and Dexcom G7 units to Medicare beneficiaries with traditional fee-for-service coverage.

In this blog post, we will explore Medicare’s coverage for continuous glucose monitoring systems, with a particular emphasis on the Dexcom G6, a popular CGM system known for its accuracy and ease of use.

What is a Continuous Glucose Monitoring System?

A Continuous Glucose Monitoring (CGM) system is a device used by individuals with diabetes to continuously track and monitor their blood glucose levels. It provides real-time information about glucose levels throughout the day and night, allowing for more precise diabetes management.

A typical CGM system consists of three main components:

  1. Sensor: A small, disposable sensor is inserted under the skin, usually on the abdomen or arm. The sensor measures glucose levels in the interstitial fluid, which is the fluid surrounding the body’s cells. It collects glucose readings at regular intervals, typically every few minutes.
  2. Transmitter: The sensor is connected to a small transmitter that securely attaches to the skin above the sensor. The transmitter wirelessly sends the glucose readings from the sensor to a receiver or a compatible smart device, such as a smartphone or insulin pump.
  3. Receiver/Display Device: The receiver or display device receives the data from the transmitter and provides real-time glucose readings and trend information. Some CGM systems use a separate receiver device, while others leverage smartphone apps or insulin pumps as display devices.

The CGM system continuously monitors glucose levels, providing users with a comprehensive picture of their glucose patterns, including trends, highs, lows, and fluctuations throughout the day. This information is crucial for making informed decisions about insulin dosing, dietary choices, physical activity, and other factors that affect blood sugar levels.

For individuals living with diabetes, CGM systems have become invaluable tools in managing blood sugar levels effectively. Medicare recognizes the importance of CGM devices and offers coverage for eligible beneficiaries.

Importance of Continuous Glucose Monitoring

(Word count: 100) Continuous glucose monitoring systems, such as the Dexcom G6, revolutionize diabetes management by providing real-time data on blood glucose levels. These devices offer greater convenience, increased accuracy, and improved awareness of glucose fluctuations.

CGM systems help individuals make timely decisions about insulin dosing, dietary choices, and lifestyle modifications, leading to better control of their diabetes and reducing the risk of complications.

Medicare Coverage for Continuous Glucose Monitoring

Medicare recognizes the medical necessity of CGM systems for individuals with diabetes who meet specific criteria. Coverage for CGM systems is available under Medicare Part B, which provides coverage for durable medical equipment (DME). Medicare Part B covers 80% of the cost of CGM supplies, including sensors, transmitters, and receivers, after meeting the annual deductible.

Criteria for Medicare Coverage

The Dexcom G6 and Dexcom G7 are widely recognized and popular CGM systems known for their accuracy, ease of use, and reliability. Medicare does cover the Dexcom G6 and G7 under its CGM coverage policy. Beneficiaries must ensure that the Dexcom G6 or G7 is prescribed by their healthcare provider and that it meets Medicare’s criteria for coverage.

To be eligible for Medicare coverage of a CGM system, the following criteria must be met:

  1. The beneficiary must have diabetes and require frequent blood glucose monitoring.
  2. The individual must use insulin multiple times per day or have a documented need for insulin due to a specific medical condition.
  3. A healthcare professional, such as a doctor or endocrinologist, must prescribe the CGM system and provide supporting documentation.

Differences Between the G6 and G7

The Dexcom G6 is a widely used CGM system that provides real-time glucose readings and trends. Here are some key features of the Dexcom G6:

  1. Sensor Design: The G6 sensor is a small, disposable device that is inserted under the skin to measure glucose levels in the interstitial fluid.
  2. Transmitter: The G6 transmitter wirelessly sends glucose data from the sensor to a receiver or a compatible smart device. It has a built-in applicator for easier insertion.
  3. Receiver/Display Device: The G6 system includes a dedicated receiver device that displays glucose readings and trend information. It can also be used with compatible smart devices via the Dexcom G6 app.
  4. Calibration: The G6 does not require regular fingerstick calibrations, although occasional calibrations may be needed for accuracy.
  5. Wear Time: The G6 sensor is designed to be worn for up to 10 days before it needs to be replaced.

The Dexcom G7 is the next-generation CGM system developed by Dexcom. While specific details and features of the G7 may have evolved since my knowledge cutoff, here are some potential advancements and differences that have been anticipated:

  1. Sensor Design: The G7 sensor is expected to be smaller and more streamlined compared to the G6 sensor, offering improved comfort and ease of use.
  2. Insertion: The G7 is expected to introduce a simpler and one-step insertion process, making it more user-friendly and potentially reducing the need for manual applicators.
  3. Sensor Wear: The G7 is anticipated to have an extended wear time, allowing users to wear the sensor for a longer period before replacement. This could potentially reduce the frequency of sensor changes.
  4. Connectivity: The G7 is expected to enhance connectivity options, potentially introducing features like direct-to-phone Bluetooth connectivity without the need for a separate receiver device.
  5. Accuracy and Performance: The G7 is projected to offer improved accuracy, reliability, and performance in glucose sensing, providing users with more accurate and timely information about their blood glucose levels.

It’s important to note that the Dexcom G7 has not been released at the time of my knowledge cutoff, and specific details and features may have changed or evolved since then. For the most accurate and up-to-date information on the Dexcom G7, it is recommended to consult Dexcom’s official website or speak with a healthcare professional.

Steps for Obtaining Medicare Coverage

To obtain Medicare coverage for the Dexcom G6, G7, or any other CGM system, follow these steps:

  1. Consult with your healthcare provider: Discuss your diabetes management needs, and determine if a CGM system, such as the Dexcom G6, is appropriate for you.
  2. Obtain a prescription: Your healthcare provider should prescribe the Dexcom G6 and provide the necessary documentation supporting medical necessity.
  3. Connect with Medicare suppliers: Find Medicare-approved suppliers who offer CGM systems like the Dexcom G6. These suppliers will work directly with Medicare to process claims and ensure proper coverage.


Continuous glucose monitoring systems, like the Dexcom G6 and G7, play a vital role in managing diabetes effectively. Medicare recognizes the importance of CGM devices and provides coverage for eligible beneficiaries.

By understanding Medicare’s criteria for coverage, consulting with healthcare professionals, and working with approved suppliers, individuals with diabetes can take advantage of Medicare’s coverage for the Dexcom G6 and other CGM systems, enhancing their diabetes management and improving their overall quality of life.

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