HBOT Cost: Price Per Session, Insurance and Medicare

Hyperbaric oxygen therapy (HBOT) typically costs $150 to $450 per session at a clinical facility, and because most treatment plans call for 20 to 40 or more sessions, a full course usually totals $3,000 to $18,000 or more. Insurance, including Medicare under National Coverage Determination 20.29, pays only for a defined list of conditions such as qualifying diabetic foot ulcers and delayed radiation injury, so off-label uses like concussion, Long COVID and wellness are paid in cash.

At a Glance

Hyperbaric oxygen therapy (HBOT) sessions typically cost $150 to $450 each at clinical facilities running 2.0 to 3.0 ATA, while mild HBOT at 1.3 to 1.5 ATA in wellness centers runs about $75 to $200, based on the setting ranges in the cost table below.
Total treatment costs range from $3,000 to $18,000+ for a course of 20 to 40 or more sessions, depending on the number of sessions, pressure level and facility type.
The FDA has cleared hyperbaric chambers for 13 conditions as of July 2021, including carbon monoxide poisoning, decompression sickness, radiation injury and diabetic foot ulcers, according to the agency's consumer update on HBOT.
Medicare covers HBOT under NCD 20.29 for 15 listed conditions; for diabetic foot wounds it requires Wagner grade III or higher and at least 30 days of standard wound care without measurable healing, according to CMS.
Mild (low-pressure) chambers for home use cost $5,000 to $25,000 and operate at lower pressures than clinical units; the FDA has not cleared zippered soft chambers for use with oxygen tanks or concentrators.
Package pricing can lower the per-session rate by 15 to 30%, and membership models and HSA or FSA funds can reduce what you pay out of pocket.

What Does Hyperbaric Oxygen Therapy Cost?

Hyperbaric oxygen therapy uses pressurized chambers to deliver 100% oxygen at pressures greater than normal atmospheric levels. This dramatically increases oxygen dissolution in blood plasma, reaching tissues that compromised circulation cannot supply through red blood cells alone. The therapy has FDA-cleared applications for wound healing, infection treatment, and radiation injury, along with growing off-label use for brain injury, Long COVID, Lyme disease, and performance recovery.

Next step: Read the HBOT guide, then compare clinic hyperbaric options in the Directory.

HBOT guide · Find vetted HBOT clinics

Understanding HBOT pricing requires knowing the difference between facility types, pressure levels, and whether insurance applies to your specific condition.

How much is one HBOT session?

One clinical HBOT session costs about $150 to $450, with hospital-based hyperbaric departments at the top of that range and freestanding clinical centers lower. A mild HBOT session at a wellness or recovery center costs about $75 to $200.

Why do HBOT prices vary so much?

Five things drive the price of a session: the pressure the chamber reaches (measured in atmospheres absolute, or ATA), whether you breathe 100% medical oxygen, the type of chamber, the level of physician supervision, and whether the facility is a hospital department billing insurance or a cash-pay center. A monoplace chamber treats one person in a clear acrylic tube, while a multiplace chamber is a steel room that treats several patients at once, each breathing oxygen through a mask or hood.

Cost Breakdown by Setting

Setting	Cost Per Session	Pressure (ATA)	Best For
Hospital-Based Facility	$250 to $450+	2.0 to 3.0 ATA	FDA-cleared conditions, insurance-covered treatment
Freestanding Clinical Center	$150 to $350	1.5 to 3.0 ATA	Both approved and off-label conditions
Wellness/Recovery Center	$75 to $200	1.3 to 1.5 ATA	Mild HBOT, general wellness, recovery
Home Chamber	N/A (ownership cost: $5,000 to $25,000)	1.3 to 1.5 ATA	Long-term maintenance, convenience

Hospital-based hyperbaric departments cost the most per session, but they are also where insurance-covered treatment usually happens, because they bill Medicare and commercial plans directly. Freestanding clinical centers reach the same clinical pressures for less and treat both covered and off-label conditions.

Prices also differ by region. Our state-by-state look at HBOT pricing shows how local markets compare.

Total Treatment Cost Estimates

HBOT is not a one-session treatment. Most protocols call for 20 to 60 sessions depending on the condition. Here is what total costs look like:

Standard Protocol (40 sessions at a clinical facility): $6,000 to $14,000 at $150 to $350 per session.

Short Protocol (20 sessions for recovery/wellness): $1,500 to $4,000 at mild HBOT facilities or $3,000 to $7,000 at clinical facilities.

Extended Protocol (60+ sessions for neurological conditions): $9,000 to $21,000+ depending on facility and pressure.

Package Pricing: Most HBOT clinics offer discounted package rates. A 40-session package might reduce the per-session cost by 15 to 30%. For example, a clinic charging $300 per individual session might offer a 40-session package at $225 per session ($9,000 total). Always ask about packages before committing to individual session pricing.

Most courses are given as a series of daily treatments over several weeks, and when sessions run every weekday, a 40-session course takes about eight weeks. Ask whether the quote includes the physician consultation, any pre-treatment exam and follow-up visits, because some centers price those separately.

HBOT Cost by Condition: Sessions and Coverage

The condition being treated sets both the number of sessions and whether insurance pays, which together decide most of the bill.

Condition	Typical sessions	Medicare coverage	Who usually pays
Diabetic foot ulcer (Wagner grade III or higher)	30 to 60	Covered after 30 days of standard wound care without measurable healing	Insurance, with copays and deductibles
Delayed radiation injury	30 to 60	Covered as an adjunct for osteoradionecrosis and soft tissue radionecrosis	Insurance, with copays and deductibles
Carbon monoxide poisoning	A short, acute course	Covered	Insurance, usually through a hospital
Sudden sensorineural hearing loss	10 to 20 at 2.0 to 2.5 ATA (UHMS)	Not on the Medicare list, though FDA cleared	Varies by commercial plan
Concussion and traumatic brain injury	About 40	Not covered	Patient, cash pay
Long COVID	40 at 2.0 ATA in the 2022 Zilberman-Itskovich trial	Not covered	Patient, cash pay
Wellness and athletic recovery	10 to 20	Not covered	Patient, cash pay or membership

Covered conditions are treated mostly in hospital hyperbaric departments and wound care centers, where a physician trained in undersea and hyperbaric medicine supervises each session. Off-label conditions such as traumatic brain injury, Long COVID, Lyme disease and chronic fatigue syndrome are usually treated at freestanding clinical centers on a cash basis. Emergencies such as carbon monoxide poisoning treatment are handled and billed by hospitals.

Mild vs. Clinical HBOT Chambers

This distinction is critical for understanding both cost and therapeutic value.

Clinical (Hard-Shell) Chambers

These are the steel or acrylic chambers found in hospitals and dedicated HBOT facilities. They reach pressures of 2.0 to 3.0 ATA (atmospheres absolute) and deliver 100% oxygen through a mask or hood system. This is the type of HBOT used in clinical research and for FDA-cleared indications.

At 2.4 ATA breathing 100% oxygen, your blood plasma oxygen levels increase by approximately 10 to 15 times normal. This level of hyperoxygenation drives angiogenesis (new blood vessel formation), reduces inflammation, mobilizes stem cells, and enhances immune function.

Mild (Soft-Shell) Chambers

Soft-shell portable chambers reach maximum pressures of 1.3 to 1.5 ATA. Most use an oxygen concentrator rather than 100% medical-grade oxygen, delivering approximately 90 to 95% oxygen. The pressure and oxygen concentration are both significantly lower than clinical chambers.

At 1.3 ATA with concentrated oxygen, plasma oxygen levels increase by roughly 3 to 4 times normal. This is still a meaningful physiological stimulus, but it is a fraction of what clinical chambers deliver.

The regulatory status differs too. According to the FDA's July 2021 consumer update on hyperbaric oxygen therapy, zippered soft chambers are made for altitude sickness and have not been cleared for use with oxygen tanks or oxygen concentrators, and the agency links that misuse to a risk of fire and suffocation.

The debate over mild vs. clinical HBOT continues. Proponents of mild HBOT point to studies showing benefits for concussion recovery, general wellness, and inflammation reduction at lower pressures. Critics argue that the dose is often insufficient for meaningful therapeutic outcomes. The truth likely sits in between: mild HBOT may provide real benefits for some conditions and general wellness, but the stronger evidence base supports clinical pressures for most specific medical applications. Our comparison of mild HBOT and clinical HBOT covers the dose question in more detail.

Insurance Coverage: What Is and Is Not Covered

Insurance covers HBOT only for a short list of accepted indications. The 14 indications below follow the list recognized by the Undersea and Hyperbaric Medical Society (UHMS), whose current edition adds avascular necrosis as a 15th:

Air or gas embolism
Carbon monoxide poisoning
Gas gangrene (clostridial myonecrosis)
Crush injuries and acute traumatic ischemia
Decompression sickness
Diabetic wounds (Wagner grade III or higher)
Exceptional blood loss anemia
Intracranial abscess
Necrotizing soft tissue infections
Osteomyelitis (refractory)
Delayed radiation injury
Compromised skin grafts and flaps
Thermal burns
Idiopathic sudden sensorineural hearing loss

For these conditions, insurance typically covers the chamber time, physician supervision, and associated monitoring. Copays and deductibles still apply. The FDA keeps its own, slightly different list: as of July 2021 it had cleared hyperbaric chambers for 13 conditions, according to the FDA list as reproduced by UHMS, and it has not cleared any HBOT device for conditions beyond that list. Our overview of the FDA-cleared indications for HBOT walks through each one.

Does Medicare cover hyperbaric oxygen therapy?

Medicare covers HBOT for the 15 conditions in National Coverage Determination 20.29, including acute carbon monoxide intoxication, decompression illness, gas embolism, gas gangrene, crush injuries, chronic refractory osteomyelitis, osteoradionecrosis, soft tissue radionecrosis, cyanide poisoning, actinomycosis and qualifying diabetic wounds of the lower extremities. The Medicare list is not identical to the UHMS list: CMS names exceptional blood loss anemia as non-covered, and thermal burns and sudden hearing loss are not on its covered list.

For diabetic foot wounds, CMS requires three things: type 1 or type 2 diabetes with a lower extremity wound caused by diabetes, a wound of Wagner grade III or higher, and an adequate course of standard wound care that failed. Failure means no measurable signs of healing for at least 30 consecutive days, and Medicare stops paying if the wound shows no measurable healing within any 30-day period of HBOT.

How HBOT is billed to insurance

Hospital outpatient departments usually bill chamber time with HCPCS code G0277, which counts each 30-minute interval, and bill the physician's attendance and supervision with CPT code 99183. Ask for those codes and their charges so you can check an estimate with your insurer. Many commercial plans require prior authorization, so get approval in writing before the first session.

Off-Label Uses Not Covered: Traumatic brain injury, Long COVID, Lyme disease, autism, cerebral palsy, chronic fatigue syndrome, athletic recovery, anti-aging, and most other conditions for which people seek HBOT are not covered by insurance. Even when emerging research supports these applications, insurers base coverage on the accepted indications lists and their own medical policies, not on individual studies. For these uses, you should expect to pay entirely out of pocket.

Home Chamber Costs

For patients needing long-term HBOT, purchasing a home chamber can be cost-effective compared to ongoing clinic visits.

Soft-shell portable chambers: $5,000 to $15,000 for the chamber. Add $1,000 to $3,000 for an oxygen concentrator. Total setup: $6,000 to $18,000.

Higher-end portable chambers (1.5 ATA): $12,000 to $25,000 for chambers with higher pressure ratings and better construction. These provide a more meaningful oxygen dose than basic 1.3 ATA models.

Used chambers: Available for 30 to 60% of new prices, but inspect carefully for wear on zippers, seams, and pressure systems. Ask for maintenance records.

The break-even point for home chamber ownership vs. clinic visits depends on how many sessions you plan to do. At $200 per clinic session, a $10,000 home setup pays for itself after 50 sessions. If you plan to use HBOT regularly for a chronic condition, home ownership often makes financial sense within 3 to 6 months.

Ongoing costs: Electricity ($10 to $20 per month for the compressor), oxygen concentrator filter replacements ($50 to $100 annually), and periodic chamber maintenance. Some users opt for medical-grade oxygen tanks at $30 to $50 per tank, though concentrators are more practical for daily use.

The break-even math only holds when a mild home dose suits your goal. See the full home chamber vs clinic cost comparison before buying.

Is HBOT Worth the Cost? What the Evidence Says

HBOT tends to give the most value where the evidence is strongest, which is also where insurance pays. For diabetic foot ulcers, a Cochrane review by Kranke and colleagues (2015) found that adding HBOT improved ulcer healing at six weeks, though the benefit was not evident at one year, and that HBOT may reduce major amputations.

Concussion and brain injury

The evidence for persistent post-concussion symptoms is mixed. In the HOPPS trial of military service members, reported by Miller and colleagues in JAMA Internal Medicine (2015), HBOT showed no benefit over sham compressions, and both groups improved, which the authors suggested may reflect a placebo effect. Smaller trials at 1.5 ATA have reported gains, so the question remains open, and courses for traumatic brain injury treatment are paid out of pocket.

Long COVID

A randomized, sham-controlled trial by Zilberman-Itskovich and colleagues, published in Scientific Reports (2022), reported improvements in cognitive function and symptoms after 40 sessions in people with post-COVID condition. It was a single-center trial, and larger studies are still needed before insurers or the FDA treat Long COVID as an indication. Our HBOT for Long COVID overview covers the follow-up research.

Lyme disease, autism and other off-label uses

According to the FDA, claims that HBOT devices treat cancer, Lyme disease, autism or Alzheimer's disease are unsupported, and the agency recommends checking with your health care provider first. The hyperbaric oxygen therapy treatment guide summarizes the evidence condition by condition.

How to Reduce Your HBOT Costs

Ask about package pricing. Nearly every clinic offers discounted multi-session packages.

Look for membership models. Some wellness centers offer monthly memberships ($200 to $500/month) with unlimited or near-unlimited mild HBOT sessions.

Consider a home chamber for long-term use. If your treatment plan calls for 40+ sessions or ongoing maintenance, the math often favors owning a chamber.

Check clinical trial access. Some universities and research hospitals offer HBOT at no cost through clinical trials. ClinicalTrials.gov lists active studies by condition and location.

Use HSA/FSA funds. HBOT is generally eligible for HSA and FSA payment when prescribed by a physician, even for off-label uses. Get a letter of medical necessity from your provider.

Confirm coverage before you pay cash. If your condition is on the Medicare or UHMS list, ask a hospital-based hyperbaric program to check your benefits first, because on a covered course your share is limited to copays, coinsurance and deductibles.

How to Compare HBOT Quotes and Find a Clinic

Two quotes for "40 sessions of HBOT" can describe very different treatments, so ask every clinic the same questions:

What pressure, in ATA, will my sessions run at, and will I breathe 100% medical oxygen through a mask or hood?
How many sessions does my plan include, what is the per-session rate, and what happens to unused sessions in a package?
Who supervises treatment? Look for a physician trained in undersea and hyperbaric medicine and technicians certified as hyperbaric technologists (CHT).
Is the facility accredited by UHMS? The FDA advises patients to choose a facility that is inspected and accredited by the Undersea and Hyperbaric Medical Society.
Does the price include the medical screening, consultation and follow-up visits?
For a covered condition, which billing codes will you use, and have you received prior authorization from my insurer?
How will progress be measured, and when will the plan be reviewed?

Screening is part of what you pay for. The FDA lists ear and sinus pain, middle ear injury, temporary vision changes and, rarely, lung collapse as risks of HBOT, and a clinic should ask about your ears, lungs and medications before the first session. The guide to hyperbaric chamber side effects explains what to expect.

To compare providers, browse the national directory of HBOT clinics, which groups hyperbaric providers by state and city, such as hyperbaric clinics in New York and HBOT providers in Pennsylvania. Regenerated.com is free for patients. Listing order is not paid ranking, Featured slots are labeled and capped, and Verified means credential checks, not spend, as set out in how Featured, Verified and organic listings differ. Inclusion in the directory is not an endorsement, so put the questions above to any clinic you contact.

Frequently Asked Questions

How many HBOT sessions do I need?

Most people need 20 to 40 sessions, but the number depends on the condition being treated. Diabetic wound and radiation injury protocols typically require 30 to 60 sessions, concussion and TBI protocols commonly use 40, and general wellness and recovery protocols may use 10 to 20. Your treating physician should give you a written treatment plan with a defined number of sessions, a pressure level and a point at which progress will be reviewed.

Is mild HBOT worth the lower cost?

Mild HBOT can be worth it for general wellness and recovery, where a dose of 1.3 to 1.5 ATA at about $75 to $200 a session may be enough, but it is not a cheap substitute for clinical HBOT. For conditions with established protocols, such as wound healing, radiation injury and decompression sickness, clinicians use 2.0 ATA and above with 100% oxygen. Evidence for mild pressures in specific medical conditions is thinner.

Can I rent a hyperbaric chamber instead of buying one?

Yes. Several companies offer chamber rentals for $1,500 to $3,000 per month. Renting can suit a defined treatment course of two to three months where you want daily sessions but do not plan on long-term use, and it often includes delivery, setup and basic training. Rental units are mild soft chambers, so the same FDA caveats about pressure and supplemental oxygen apply as with a purchased home chamber.

Why does HBOT cost so much?

HBOT costs a lot because clinical facilities carry high fixed costs. Medical-grade hyperbaric chambers cost $100,000 to $500,000 each and need dedicated space, specialized maintenance, trained technicians, physician oversight and liability insurance specific to hyperbaric medicine, and the per-session price reflects those real operating expenses. Mild HBOT at wellness centers has lower overhead and lower pricing, and it also delivers a lower dose of oxygen.

Will the cost of HBOT decrease over time?

Costs may fall gradually as competition and scale grow, though no one can say when. The growth of mild HBOT centers has already made low-pressure sessions more accessible and affordable than they were a decade ago. The bigger change for patients would come from coverage: if more conditions are added to the FDA-cleared and Medicare lists, insurance would pay for more courses and out-of-pocket costs would drop.

Does insurance cover HBOT for Long COVID or concussion?

No, in most cases. Medicare's National Coverage Determination 20.29 does not include Long COVID, concussion, traumatic brain injury, Lyme disease or chronic fatigue syndrome, and these courses are usually paid in cash. You can often use HSA or FSA funds with a letter of medical necessity from your physician, and some universities and research hospitals offer HBOT at no cost through clinical trials listed on ClinicalTrials.gov.

HBOT Cost: How Much Does Hyperbaric Oxygen Therapy Cost?

At a Glance