How Much Does A Hyperbaric Oxygen Therapy Session Cost?

A single hyperbaric oxygen therapy session costs between roughly $75 and $650 in the United States, depending almost entirely on where you go and what kind of chamber you sit in. Independent clinics cluster around a median of about $250 per session. Hospital outpatient programs run considerably higher. Wellness studios using mild, low-pressure chambers charge the least.

That range is wide enough to be almost useless on its own, so this guide breaks it down by facility type, shows what Medicare actually pays, and works through what a full course costs. All figures are sourced, and the sources are listed at the end.

Cost Per Session By Facility Type

Facility Type	Pressure	Typical Cost Per Session
Wellness or spa studio, soft-shell	1.3 to 1.5 ATA	$50 to $150
Independent clinic, mid-pressure	1.5 to 2.0 ATA	$150 to $250
Independent clinic, high-pressure	2.0 to 3.0 ATA	$250 to $500
Hospital outpatient program	2.0 to 3.0 ATA	$250 to $650

An analysis of pricing across 36 clinics found a national median of approximately $250 per session, with the bulk of independent clinics falling between $150 and $400.

Two things drive most of the spread. The first is chamber type, which is really a question of pressure. The second is facility overhead, which is why the same treatment costs meaningfully more inside a hospital than down the road at a standalone clinic. Uninsured patients typically save 30% to 60% by choosing an independent center over a hospital-based one.

What The Peer-Reviewed Data Says

Most online cost guides quote ranges without sourcing them. There is, however, a proper published analysis.

Gelly et al., writing in Undersea and Hyperbaric Medicine in 2024, examined deidentified data from 53 centers registered in the Hyperbaric Oxygen Therapy Registry across the decade from 2013 to 2022, and calculated costs based on Medicare outpatient facility and physician reimbursement adjusted for inflation.

Their headline figures for 2022:

Measure	2013	2022	Change
Single session cost to Medicare		$595.86
Facility cost per 40 treatments	$21,568.58	$19,488.00	−10.7%
Physician cost per 40 treatments	$5,993.16	$4,346.40	−37.8%
Total cost per 40 treatments	$27,561.74	$23,834.40	−15.6%

Two points worth drawing out. First, that $595.86 is what Medicare recognizes for a hospital outpatient session billed across four 30-minute segments. It is not what a self-pay patient hands over at an independent clinic, which is typically less than half of it.

Second, the direction of travel. Costs fell across the board over the decade, with physician reimbursement dropping by more than a third. As the authors put it, the real-world cost of HBOT is not nearly as high as the literature had suggested, and the per-patient cost to Medicare is decreasing.

What You Pay If Medicare Covers You

Medicare Part B covers hyperbaric oxygen therapy, but only for a defined list of conditions under National Coverage Determination 20.29. These include decompression illness, gas embolism, carbon monoxide intoxication, gas gangrene, chronic refractory osteomyelitis, delayed radiation injury, actinomycosis as an adjunct where the disease is refractory to antibiotics and surgery, and diabetic wounds of the lower extremities.

The diabetic wound criteria are strict and worth knowing precisely. You need Type 1 or Type 2 diabetes, a lower extremity wound caused by the diabetes, a wound classified as Wagner grade III or higher, and a documented failure of an adequate course of standard wound therapy.

If you qualify, the arithmetic is straightforward. You pay the annual Part B deductible, which CMS set at $283 for 2026, up from $257 in 2025. After that you pay 20% coinsurance on the Medicare-approved amount, and Medicare pays the remaining 80%.

On a 40-session course at the 2022 Medicare rate of $23,834.40, a 20% share works out at roughly $4,767 before any supplemental coverage. That is a real number, and a long way from the $23,834 headline.

One structural detail catches people out: Medicare and most commercial plans only cover HBOT delivered in an approved clinical setting. Standalone wellness clinics generally do not qualify for reimbursement even when your condition is on the approved list.

How It Gets Billed

Understanding the two codes on your bill explains why hospital sessions cost what they do.

HCPCS G0277 is the facility fee, billed per 30-minute interval. A 90-minute session is billed as three units, a 120-minute session as four.

CPT 99183 is the physician supervision fee, billed once per session.

Both rates are set annually. G0277 sits under the Outpatient Prospective Payment System and has moved sharply in recent years, including a proposed cut of around 40% for 2024 that was subsequently revised after industry challenge. If you are budgeting against a specific number, check the current year’s rate rather than relying on a figure quoted in an older article.

If Your Condition Is Not Covered

This is where most people searching for HBOT pricing actually land.

Off-label uses are not reimbursed by any major US insurer. That includes traumatic brain injury and post-concussion syndrome, long COVID, fibromyalgia, Lyme disease, sports recovery, cognitive performance and anti-aging. The research behind several of these is genuinely substantial, but published evidence and an approved reimbursement code are two different things.

If your condition is off-label, you are paying 100% of the cost, every session, for the length of the protocol.

What A Full Course Costs

Almost nobody has one session. Clinical protocols run 20 to 40 sessions, five days a week, and some conditions call for 60 or more.

Course Length	At $150/session	At $250/session	At $400/session
20 sessions	$3,000	$5,000	$8,000
40 sessions	$6,000	$10,000	$16,000
60 sessions	$9,000	$15,000	$24,000

A typical self-pay course therefore lands somewhere between $3,000 and $26,000. And that is before you count eight weeks of daily round trips, which is its own cost in fuel, parking and time away from work.

What Is Usually Included, And What Is Not

The session price generally covers chamber time, oxygen, technician supervision and use of the facility.

Frequently charged separately:

• Initial consultation or screening exam, commonly $100 to $200
• Physician assessment where required before treatment
• Any imaging or bloodwork requested before starting

Ask for the all-in figure rather than the advertised session rate. The gap between the two is often a few hundred dollars.

Four Ways To Reduce What You Pay

• Buy a package. Almost every clinic discounts blocks of sessions, commonly by 15% to 40% against the walk-in rate. If you are committing to a 40-session protocol anyway, paying per session is the most expensive way to do it.
• Compare independent clinics against hospitals. For the same treatment, the saving runs 30% to 60%. If you are self-pay, there is no reimbursement reason to be in a hospital.
• Use HSA or FSA funds. Hyperbaric therapy is an eligible expense for FSA, HSA and HRA reimbursement. With a prescription or Letter of Medical Necessity from a licensed physician, this generally holds even for off-label conditions, because the IRS test is medical necessity rather than insurance coverage. Paying with pre-tax dollars effectively cuts your cost by whatever your marginal tax rate is, commonly 20% to 35%.
• Ask hospitals about financial assistance. Most hospital systems run programs for uninsured and underinsured patients. They are rarely advertised. Ask the billing department before your first session, not after.

When Owning Costs Less Than Renting Chair Time

There is a crossover point, and it arrives sooner than most people expect.

A home chamber from our range starts at around $8,500. Run a single 40-session protocol and the equipment cost works out at roughly $212 per session, already competitive with independent clinic pricing. The difference is what happens next. The forty-first session costs you nothing beyond electricity, and so does the four hundredth.

	40 Sessions	100 Sessions	250 Sessions
Clinic at $250/session	$10,000	$25,000	$62,500
Owned chamber at $8,500	$8,500	$8,500	$8,500
Effective cost per session	$212	$85	$34

This is why ownership tends to make sense for chronic conditions and maintenance protocols, and less sense for a single acute course. If you need 20 sessions for a wound that will then be healed, a clinic is the right answer. If you are managing something ongoing, running maintenance sessions indefinitely, or treating more than one person in a household, the arithmetic flips quickly.

You can compare specifications and pricing across our full range of hyperbaric chambers, and payment plans are available on every model.

Frequently Asked Questions

Why is there such a large gap between a $75 session and a $500 one? Chamber pressure, mostly. Sessions at the low end are typically soft-shell chambers running at 1.3 to 1.5 ATA. Sessions at the high end are hard-shell medical-grade chambers at 2.0 to 3.0 ATA. Nearly all the clinical research supporting HBOT was conducted in hard-shell chambers at the higher pressures, so the two are not interchangeable products at different prices.

Does insurance ever cover off-label HBOT? Not through standard coverage. Some denials are overturned on appeal with proper documentation, so it is worth asking your clinic’s billing department to help if you believe your condition may fit an approved indication.

Is HBOT cheaper in some parts of the country? Yes, substantially. Coastal metro areas such as New York, Los Angeles and Miami run higher than the national median. Rural and suburban clinics run lower. Prices can vary widely between clinics within the same city, so call two or three before booking.

Does Medicare cover a chamber for home use? No. Medicare coverage applies to treatment delivered in approved clinical facilities, not to equipment purchased for the home.

How long is a session? Most run 60 to 120 minutes, with 90 minutes being the most common clinical protocol. Longer sessions cost more where clinics price by duration.

Sources

• Gelly HB et al. Trends in Medicare Costs of Hyperbaric Oxygen Therapy, 2013 through 2022. Undersea and Hyperbaric Medicine, Volume 51, Number 2, 2024.
• Centers for Medicare & Medicaid Services. 2026 Medicare Parts A & B Premiums and Deductibles, published November 14, 2025.
• Medicare.gov, Hyperbaric Oxygen Therapy Coverage, National Coverage Determination 20.29.
• Federal Register, CMS-8091-N, Medicare Part B Annual Deductible Beginning January 1, 2026.
• Market pricing survey data compiled across US clinic directories, 2026.

This article is for general information. Pricing varies by provider, region and year, and coverage decisions depend on your specific diagnosis and plan. Confirm current costs directly with any facility you are considering, and speak to a qualified healthcare professional about whether hyperbaric oxygen therapy is appropriate for you.