California has one of the largest HBOT markets in the US. A strong medical base plus a deep wellness sector creates two kinds of supply.
This breakdown pulls data from our directory of 57 California HBOT facilities. We draw accreditation status from the UHMS facility directory (2024).
Use it as a starting point. Verify the facility's current status before booking.
What to check at any California facility
Two systems split California HBOT. Hospital wound programs treat the 14 FDA-approved indications listed by Medicare (2024). They bill insurance.
Cash wellness clinics offer 1.3 ATA mild HBOT. Most of that use is off-label.
Three credentials to verify before booking:
- UHMS accreditation in the UHMS directory (2024)
- Chamber class — Class II hard-shell for medical use, Class II portable for mild HBOT
- Medical director — a physician with hyperbaric training, not a coach or marketing partner
California facilities span all three tiers. The county breakdown below indicates which.
Los Angeles County — 22 facilities
LA County anchors California's HBOT market. The county has more facilities than any other in the state.
UCLA Hyperbaric Medicine holds UHMS accreditation with distinction (2024). The program runs hard-shell chambers and treats the FDA-approved indications.
UCLA Medical Center anchors the academic side. Wellness clinics cluster in Beverly Hills, the South Bay, and along Wilshire.
Cash sessions run $200 to $350 for mild HBOT. Hospital-grade runs $400 to $700. See our Los Angeles HBOT guide for city-level detail.
San Bernardino County — multiple facilities
San Bernardino County hosts two UHMS-accredited programs.
Redlands Community Hospital runs an UHMS-accredited program (2024). Loma Linda University Hospital runs a UHMS-accredited Hyperbaric Medicine Service.
Both are hospital-grade wound centers. They treat FDA-approved indications.
The Inland Empire wellness market is smaller than LA but growing. Cash sessions track LA pricing.
Riverside County — 1 UHMS facility plus wellness clusters
Loma Linda University Hospital-Murrieta runs a UHMS-accredited Wound Care & Hyperbaric Medicine Center (2024).
This is the only accredited facility in Riverside County. Wellness clinics fill the cash market in Palm Desert and Temecula.
The Murrieta program is the closest insurance-billed option for south Riverside.
Contra Costa County — 1 UHMS facility
John Muir Medical Center in Walnut Creek runs a UHMS-accredited program (2024).
The Walnut Creek program is the East Bay's main insurance-billed option. It runs hard-shell chambers under medical director oversight.
Wellness clinics in Pleasant Hill and Walnut Creek serve the cash market for off-label use.
Solano County — David Grant USAF Medical Center
David Grant USAF Medical Center at Travis AFB holds UHMS accreditation with distinction (2024). It is one of two California facilities at the distinction tier.
The program is primarily a military hospital. Civilian access is limited and tied to TRICARE.
The "with distinction" tier is the highest UHMS rating. The other California facility at this tier is UCLA.
Orange County — wellness cluster, no UHMS in our verified data
Orange County has a dense wellness HBOT market. Newport Beach, Irvine, and Costa Mesa host multiple cash-pay clinics offering 1.3 ATA mild HBOT.
No Orange County facility appears in our verified UHMS data set. Hospital wound programs at Hoag, UCI Health, and Kaiser run HBOT under wound care. Those facilities are not on the UHMS roster we tracked.
For FDA-approved indications, residents travel to UCLA, Loma Linda, or San Diego.
San Diego County — hospital programs plus military
San Diego has a deep hospital HBOT market. UCSD, Sharp, and Scripps run HBOT under wound care.
Naval Medical Center San Diego runs a military hyperbaric program. Civilian access tracks the same TRICARE constraints as Travis AFB.
The wellness market is in La Jolla, Carlsbad, and downtown. Cash prices track LA County.
San Francisco and Alameda Counties — limited verified accreditation
San Francisco hosts hospital HBOT programs at UCSF and the SF VA. The UHMS roster we tracked did not list these as accredited. They run HBOT services under wound care.
The wellness market is in the Marina, Mission, and the East Bay. Cash sessions run $200 to $350 for mild HBOT.
For FDA-approved uses, John Muir in Walnut Creek is the closest UHMS option for most Bay Area residents.
Other California counties
Counties with smaller verified markets include:
- Sacramento — Folsom and Roseville wellness clinics
- Santa Barbara — Santa Barbara wellness cluster
- Monterey — Mission Viejo wellness
- Santa Clara — Los Gatos wellness
Verified UHMS status in these counties is none. Hospital HBOT exists at academic centers but may not be on the current list.
What this list does not include
Our directory tracks public HBOT facilities. It does not include:
- Veterinary HBOT programs (see our veterinary HBOT guide)
- Naval and military programs beyond Travis AFB and San Diego
- Mobile or temporary HBOT services
- Facilities that opened after our last verification cycle
Accreditation status changes. Verify the current status of any facility in the UHMS directory (2024) before booking.
Related reading
- Best HBOT clinics in Los Angeles
- UHMS-accredited HBOT facilities: what certification means
- Wound care center HBOT vs wellness clinic HBOT
- How to find a legitimate HBOT clinic near you
Frequently asked questions
How many UHMS-accredited HBOT facilities are in California?
Six California facilities carry UHMS accreditation in our verified data set. They are UCLA Hyperbaric Medicine (with distinction), David Grant USAF Medical Center (with distinction), Redlands Community Hospital, John Muir Medical Center, Loma Linda University Hospital-Murrieta, and Loma Linda University Hospital. The "with distinction" tier is the highest UHMS rating.
Which California county has the densest HBOT market?
Los Angeles County has 22 facilities in our directory, by far the most. San Bernardino, Riverside, Orange, San Diego, and the Bay Area each carry significant supply. The biggest gaps are in inland counties and the far north.
Does insurance cover HBOT in California?
Yes, for the 14 FDA-approved indications at a hospital-grade or accredited facility. Medicare and most private insurers cover sessions at 2.0 to 3.0 ATA for approved indications. Coverage for off-label uses at mild HBOT clinics is not available.
What does a California HBOT session cost?
Mild HBOT (1.3 ATA) at wellness clinics runs $150 to $300 per session. Hospital-grade HBOT (2.0 to 3.0 ATA) at accredited facilities runs $400 to $700. Off-label use at hard-shell pressures runs $300 to $600.
Are there UHMS-accredited HBOT facilities in San Francisco?
The roster we tracked did not list San Francisco facilities as accredited. UCSF, the SF VA, and Stanford Health Care run HBOT services but may not appear on the current UHMS roster. The closest accredited Bay Area facility in our data is John Muir in Walnut Creek.
Medical disclaimer
This article is for informational purposes only and is not medical advice. UHMS accreditation status and facility availability change. Verify the status of any HBOT site through the UHMS list before you book. Consult your doctor before pursuing HBOT for any condition.
-- The HBOT Finder Team