Dexcom G7 coupons & coverage: frequently asked questions

No. Dexcom does not distribute promo codes the way retail brands do, and there is no US copay card that stacks on top of commercial insurance. Any site advertising a secret Dexcom promo code is inventing it or steering you to a generic discount card you could get free. The real programs are on our savings page.

More than $200 off a 30-day sensor supply, $400 off a 60-day supply, and $600 off a 90-day supply, plus more than $200 off a receiver. We say “more than $200” rather than an exact number because Dexcom's own pages quote it as $200, $210 and $230 in different places. Confirm at the counter.

Up to 12 times in a year — enough for a monthly supply with nothing to spare. It works at major retail pharmacy chains and Amazon Pharmacy, and you need a valid prescription.

No. You must opt out of insurance coverage, and out of any other coupon or copay offer, to use it for that fill. That also means what you pay does not count toward your deductible or out-of-pocket maximum.

It provides a no-cost trial sensor, but eligibility is narrow. You need type 1 or type 2 diabetes, a commercial health insurance plan, a prescription, and a compatible smartphone. People on government health plans — Medicare, Medicaid, VA — are not eligible, and neither are people with prediabetes or no diabetes diagnosis. Patients under 18 receive a Dexcom G7; patients 18 and over receive a Dexcom G7 15 Day.

That is Dexcom's Quick Start program, a bridge for commercially insured patients whose plan has not yet added the G7 to its formulary. You pay $89 a month at a pharmacy and your normal copay takes over once the plan adds it. It is not a general discount for everyone with commercial insurance, and it is not a copay card.

Yes — income-based discounts for eligible US residents who meet Dexcom's income criteria. You apply at assistance.dexcom.com and Dexcom sets your price; it does not publish a figure in advance. Note that Dexcom has indicated the G7 15 Day joins the program only a few months after launch.

Yes, for cash payers. GoodRx has listed the G7 15 Day as low as about $181 against an average retail near $498; SingleCare has listed a 30-day supply of three sensors around $321 against retail near $572. Prices vary by pharmacy and ZIP code and change often, so compare both on the day you fill.

Roughly $500–$575 a month at retail, and roughly $180–$320 with a discount card or Dexcom's coupon. The optional receiver has been listed near $431 retail and around $228 discounted — but most people use a compatible smartphone instead and skip it entirely. Detail in the cash price guide.

Dexcom reports that most people with CGM coverage pay $20 a month or less. That is Dexcom's own footnoted figure rather than an independent finding, but it reflects the general pattern: covered patients pay far less than any cash discount produces.

With Dexcom's coupon, yes. $600 off a 90-day supply beats more than $200 off each of three monthly fills. It needs more cash up front, so it makes sense once you are confident you are staying on the G7.

Three for the standard G7, which is worn 10 days. Two for the G7 15 Day, which is worn 15 days plus a 12-hour grace period. Compare monthly totals, not per-sensor prices.

Yes, under the Part B durable medical equipment benefit, if you meet the criteria: diabetes mellitus plus either insulin treatment or documented problematic hypoglycemia. You also need a practitioner visit within the six months before the order and another every six months afterward. Full detail on the Medicare page.

The Part B annual deductible is $283, after which Medicare pays 80% of the allowed amount and you pay 20% coinsurance. A Medigap policy typically covers that 20%. The standard Part B monthly premium in 2026 is $202.90.

Medicare's policy requires documentation of at least one of: recurrent (more than one) level 2 events with glucose below 54 mg/dL that persist despite multiple attempts to adjust medication or modify the treatment plan; or one level 3 event below 54 mg/dL with altered mental or physical state requiring third-party assistance.

Confirm before ordering. Medicare's criteria are written for CGMs as a category, and Dexcom states the G6 and G7 are Medicare-covered — but Dexcom's Medicare page does not list the G7 15 Day. See our page on this specifically.

In most states, in some form. There is no single national Medicaid CGM policy — criteria, prior authorization, preferred brands and quantity limits are set state by state and by managed care plan. See the Medicaid guide.

Medicare is generally the primary payer and Medicaid may cover some or all of what Medicare leaves, including the Part B coinsurance. You still have to satisfy Medicare's criteria, including the six-month visit requirement, because Medicare rules govern the primary claim.

Usually, for insulin users. Dexcom reports about 87% of people using insulin are covered and roughly 50% of those not using insulin. What varies is which benefit your plan uses, whether prior authorization is required, and your copay.

Whichever your plan makes cheaper, and that differs by plan. Pharmacy usually means a flat copay; medical/DME usually means coinsurance after the deductible. The same sensors can cost very different amounts through the two lanes, so price both before the first fill.

On Medicare, most often the visit requirement rather than the clinical criteria. On commercial plans, usually a missing prior authorization, insufficient documentation of insulin use or hypoglycemia, a formulary preference for another CGM, or billing through the wrong benefit. All are commonly fixable — see the insurance guide for what resolves each.

Yes, for the G7 and G7 15 Day, regardless of how you pay. Only Dexcom's Stelo biosensor is over the counter, and it is a different product for adults who do not use insulin — not indicated for people with problematic hypoglycemia.

It is harder. Medicare covers CGMs for non-insulin users only with documented problematic hypoglycemia. Commercial coverage is roughly a coin flip by Dexcom's own numbers. See Do I Qualify?

Yes. What matters to payers is that the prescriber is a treating practitioner managing your diabetes and that the documentation supports the criteria — not the specialty.

Medically Modern, a licensed durable medical equipment supplier that delivers diabetes technology to patients' homes. This site is not affiliated with, endorsed by, or sponsored by Dexcom, Inc. More on the about page.

Because that is where the money is. Coupons save you money once; correct coverage saves you money on every order. We would rather tell you the truth and earn the benefits check than rank for a promise we cannot keep.

Yes, and there is no obligation. To be transparent about our interest: we are a supply company, so if you turn out to be covered and choose to order through us, that is how we get paid. The check itself costs nothing either way and you are free to take the information elsewhere.

Stelo is Dexcom's over-the-counter glucose biosensor — no prescription needed. It is intended for adults 18 and over who do not use insulin (it has also been cleared for children 2 and over who do not use insulin), and it is not indicated for people with problematic hypoglycemia. So it is not a substitute for a G7 if you dose insulin or if lows are your reason for wanting a CGM.

Dexcom reports an overall MARD of 8.0%, which it describes as its most accurate CGM system. MARD is the average percentage difference from a laboratory reference value, so lower is better. In the clearance study, 73.9% of sensors lasted the full 15 days.

Contact Dexcom about its replacement policy rather than using up an insurance-covered fill. Roughly a quarter of G7 15 Day sensors did not reach the full 15 days in the clearance study, so early failures are not unusual and manufacturers expect these requests.

Usually not. The G7 works with a compatible smartphone app, which is how most people use it. The receiver is a separate display device, listed near $431 retail and around $228 discounted — worth it if you do not carry a compatible phone or need a backup display, otherwise money better spent on sensors.

Generally yes. Dexcom states both are Medicare-covered, and coverage criteria apply to CGMs as a category rather than to a specific model. You will need your prescriber to update the prescription, and if you are insured it is worth confirming the specific product is on formulary first.

Yes. The prescription names the product and quantity, and a pharmacy or supplier cannot substitute one for the other. Confirm coverage for the specific product before asking for the change.

With a prescription in hand and no prior authorization required, roughly a week to first delivery. Prior authorization adds several business days. If you still need a qualifying office visit, the appointment sets the timeline. See the four-step guide.

Three usual causes. On Medicare, a missed six-month practitioner visit — coverage continues only while that requirement is met. On any plan, an expired prior authorization. Or a plan year change in January, when formularies, deductibles and preferred suppliers reset. All three are avoidable with the dates in a calendar.

Medicare accepts an in-person or Medicare-approved telehealth visit for both the initial and the six-month follow-ups. Commercial plans vary, so confirm with yours before relying on it.

Yes. You will need the prescription transferred, and on Medicare the new supplier must be enrolled and accept assignment — that second point directly affects what you pay. Ask any new supplier whether they take your plan and what your expected monthly cost will be before you move.

Three months of sensors in one fill instead of three. It means fewer reorder cycles to miss, and if you are paying cash it is meaningfully cheaper — Dexcom's coupon takes $600 off a 90-day supply versus more than $200 off each monthly one. Check your plan allows it; some set quantity limits per 30 days.

Tell your prescriber's office — a gap in CGM data matters clinically, not just administratively. Ask whether a sample is available, and rather than going without, compare cash prices for a single fill to bridge the gap.