Does Medicare Cover Inspire?
Yes — but Medicare has its own rules for the Inspire sleep apnea implant, and a few of them are stricter than commercial insurance. This is the conversation I have with my Medicare patients in clinic: who qualifies, what we look for on your sleep study, and what to expect when it comes to payment.
Start with the BMI requirement: under 35
The first thing we check is your BMI (body mass index). For Medicare, your BMI must be less than 35 to be a candidate for Inspire.
This is a very strict requirement. It’s not a judgment call I’m making as your doctor — it’s literally what Medicare requires. If you have the surgery with a BMI of 35 or higher, there’s a real chance Medicare won’t pay for it. That’s why I tell my patients to build in some margin for error — your weight will be checked on the day of surgery, and you want to be comfortably under the line, not right at it.
Not sure what your BMI is? Enter your height and weight below.
This calculator runs entirely in your browser — nothing you enter is saved or sent anywhere. BMI is a screening number, not the whole picture; your surgical team will measure and document it formally.
Your sleep study: within two years — home or lab both count
Next, you need a sleep study from within the last two years. For Medicare, it doesn’t matter whether the study was done at home or in a sleep lab. The in-lab version (called polysomnography) is the more accurate test, and many of my patients choose to have one — but it isn’t required to qualify for Inspire.
What matters more is how the study is scored. You don’t have to master this yourself — your provider will read the study closely — but it’s worth understanding, because it’s one of the most common sources of confusion I see.
The 4% rule
For Medicare, the “partial” breathing events on your sleep study — called hypopneas — only count if your oxygen level drops by at least 4%. Many commercial insurers will accept a 3% drop.
That one percentage point matters more than you’d think. I regularly see patients who were told they qualify for Inspire — but when I read the sleep study closely and look at both the 3% and the 4% numbers, their sleep apnea is severe enough at the 3% threshold and just too mild at the 4% threshold. For Medicare, the 4% number is the one that counts.
The AHI range Medicare wants: 15 to 65
Scored at that 4% level, your AHI must be between 15 and 65 events per hour.
AHI stands for apnea-hypopnea index. An apnea is when you completely stop breathing for ten seconds or longer. A hypopnea is when you partially stop breathing and your oxygen level drops. Add up all of those events, divide by the hours of recording (or sleep) time, and you get your AHI. It’s the single most important number on your sleep study.
Central and mixed apneas: less than 25%
Not every breathing event is the same. Obstructive apneas — where the airway physically collapses — are the kind Inspire treats. Central apneas, where the brain doesn’t send the signal to breathe, aren’t treated by Inspire, and mixed apneas may not be either. When we review your study, we add up the central and mixed events and make sure that together they’re less than 25% of all the sleep apnea events over the course of the night.
You need a real CPAP trial first
Medicare also requires documentation that you’ve tried CPAP and either couldn’t tolerate it or it didn’t control your apnea. If you’re not sure whether you meet that bar, I’ve written a full page on what it means to fail CPAP.
The sleep endoscopy (DISE)
Beyond your weight and your sleep study, we also perform a drug-induced sleep endoscopy — a brief exam under sedation where we watch how your airway collapses in real time. What we need to see is that you don’t have a pattern of collapse at the palate called complete concentric collapse. If that pattern is present, Inspire isn’t approved for you and Medicare won’t cover it.
Medical conditions that rule Inspire out
Lastly, certain medical conditions exclude you from getting an Inspire device, and we’ll make sure you don’t have any of them. The full list is fairly long — some of the important ones are significant heart failure and neuromuscular disease. I cover this in more detail in when an implant isn’t the right choice.
Will Medicare confirm payment ahead of time?
If all of that checks out, you’re a good candidate for Inspire under Medicare’s criteria. At this point many of my patients ask: “Will you get confirmation that Medicare will pay before we do the implant?”
This is where Medicare works differently from commercial insurance, and it surprises people. With commercial insurance, we tell the insurer what we plan to do and get prior authorization before surgery. Traditional Medicare generally doesn’t have a prior-authorization step — that’s true for most surgeries, not just Inspire. It isn’t something your surgeon controls. It’s on us to submit all the correct information, and when we do, payment problems are rare. But no one can give you a 100% guarantee ahead of time.
One nuance: if you have a Medicare Advantage plan rather than traditional Medicare, your plan generally follows similar coverage criteria but usually does require prior authorization — so that piece works more like commercial insurance.
What my patients actually pay
I can tell you from my own experience that I haven’t run across patients getting large surprise bills for Inspire on Medicare — though the risk is never zero. Typically the procedure is paid like any other Medicare surgery: you pay your deductible, Medicare covers 80%, and a supplemental (Medigap) plan, if you have one, usually picks up the rest. Many of my patients report paying little out of pocket. Costs do vary by geography, so the best answers come from your local provider and a Medicare representative.
Medicare’s Inspire criteria at a glance
- BMI less than 35
- A sleep study within the last 2 years — home or in-lab both accepted
- AHI between 15 and 65, scored with the 4% oxygen-drop rule
- Central + mixed apneas less than 25% of all events
- A documented CPAP trial that didn’t work out
- A sleep endoscopy (DISE) without complete concentric collapse
- None of the excluding medical conditions
Want to see how your own numbers line up — on Medicare or any other plan?
Check your insurance coverage → Try the Decision ToolReferences
Primary coverage and cost sources behind this page. Citations are provided for educational reference; coverage policies are updated periodically and can vary by region, so your surgical team’s benefits review is the final word.
Medicare Local Coverage Determinations — Hypoglossal Nerve Stimulation for the Treatment of Obstructive Sleep Apnea
Medicare’s coverage criteria for Inspire are published as Local Coverage Determinations (LCDs) by the regional Medicare contractors. They define the requirements summarized on this page: BMI below 35, AHI of 15 to 65 with hypopneas scored at the 4% desaturation level, central and mixed apneas under 25% of the total, a documented CPAP trial, and a drug-induced sleep endoscopy without complete concentric collapse.
CMS Medicare Coverage Database. LCD L38307 (example; see the database for your region’s LCD)
Medicare costs — Part B deductible and coinsurance
Outpatient surgery under Medicare Part B is generally paid at 80% of the approved amount after the annual deductible, with the remaining 20% owed by the patient or covered by a supplemental (Medigap) plan.
Medicare.gov. medicare.gov/basics/costs/medicare-costs
STAR Trial (Strollo PJ Jr et al., NEJM 2014)
The pivotal trial of Inspire upper-airway stimulation. Its patient-selection approach — BMI, AHI range, and the pattern of collapse on sleep endoscopy — is the foundation the Medicare coverage criteria grew from.
N Engl J Med. 2014;370(2):139–149. doi:10.1056/NEJMoa1308659
Common questions about Medicare and Inspire
Does Medicare cover the Inspire implant?
Yes. Traditional Medicare covers Inspire when its criteria are met: a BMI under 35, an AHI between 15 and 65 scored at the 4% oxygen-desaturation level, central and mixed apneas making up less than 25% of events, a sleep study within the last two years, a documented CPAP trial that didn’t work out, a sleep endoscopy (DISE) without complete concentric collapse, and none of the excluding medical conditions.
What BMI does Medicare require for Inspire?
Less than 35. This is a strict, written requirement of Medicare’s coverage policy, not a clinical judgment call — and your weight is checked on the day of surgery, so you want to be comfortably under the line, not right at it. Many commercial insurers allow a BMI up to 40.
Do I need an in-lab sleep study for Medicare?
No. For Medicare it doesn’t matter whether your sleep study was done at home or in a sleep lab, as long as it’s from within the last two years. What matters is how it’s scored: Medicare scores hypopneas using the 4% oxygen-drop rule, which is stricter than the 3% rule many commercial insurers accept.
Does Medicare pre-approve Inspire surgery before it happens?
No. Traditional Medicare generally has no prior-authorization process for surgery, so there’s no advance confirmation of payment the way commercial insurance provides. Your surgical team submits the documentation, and when the criteria are met, payment problems are rare — but a 100% guarantee ahead of time isn’t possible. Medicare Advantage plans usually do require prior authorization.
How much will I pay out of pocket for Inspire on Medicare?
Typically your deductible plus 20% coinsurance, with Medicare covering 80% of the approved amount. If you have a supplemental (Medigap) plan, it usually picks up most of the remainder, and many patients report paying little out of pocket. Costs vary by geography and plan, so confirm with your local provider and a Medicare representative.