Start with your diagnosis and a clear treatment goal
Before choosing an HBOT provider, get five things clear: the diagnosis, evidence for the proposed use, clinician qualifications, safety arrangements, and total cost. Start by asking why HBOT is being recommended and what other care you will still need. Use the same questions at each clinic so you can compare the answers.
Prepare a short account of the problem, previous treatment, and your goals. Bring relevant records and a current medication list. Ask which additional records the clinician needs rather than assuming a clinic can recommend an appropriate course from a brief online inquiry. The goal of a first consultation is to understand the proposal well enough to assess it.
Separate the people, the facility, and the device when checking claims. A clinician’s qualification, a location’s accreditation, and a chamber’s clearance are different facts. A logo or a broad description such as medically supervised should lead to specific details you can verify.
- Ten Guidelines for Patients and Referring Physicians in Selecting Safe Hyperbaric Oxygen Treatments — April 2025 · Undersea and Hyperbaric Medical Society
- Are There FDA Registered or FDA Certified Medical Devices? · U.S. Food and Drug Administration
Check facility accreditation
UHMS maintains a list of accredited clinical hyperbaric facilities. Its accreditation evaluates clinical, operational, and safety practices. FDA’s July 2021 patient bulletin advises choosing an inspected, UHMS-accredited facility when a clinician recommends HBOT. UHMS’s April 2025 guidance also makes clear that accreditation cannot guarantee safety.
Match the facility name and street address against the current accreditation source. Ask the clinic to explain any difference in names or locations. A business may have multiple offices, and a claim about one program should not silently be extended to every office. Keep the date you checked and confirm the location again if care is scheduled much later.
If you cannot confirm a claim, mark it as unanswered and ask the issuing organization or clinic for clarification. Treat an application for accreditation separately from awarded accreditation. You can also ask what services and patients the location is equipped to support; accreditation alone does not tell you whether it handles your particular clinical needs or offers emergency access.
- UHMS Accredited Clinical Hyperbaric Medicine Facilities · Undersea and Hyperbaric Medical Society
- Ten Guidelines for Patients and Referring Physicians in Selecting Safe Hyperbaric Oxygen Treatments — April 2025 · Undersea and Hyperbaric Medical Society
- Hyperbaric Oxygen Therapy: Get the Facts — FDA bulletin, July 26, 2021 · U.S. Food and Drug Administration
Check clinician and staff credentials
Ask for the name of the clinician who evaluates you, prescribes treatment, and supervises care. Verify professional licensure with the appropriate licensing authority and ask how the clinician’s hyperbaric training can be checked. Request the actual credential name and issuing organization rather than relying on an abbreviated biography.
Undersea and Hyperbaric Medicine is a physician subspecialty. ABEM describes a certification pathway with qualifying fellowship training and an examination administered through the American Board of Preventive Medicine. Board certification is a specific credential; completing a course should not be described as the same thing. Ask which qualification is being claimed and verify it with its issuer.
Discuss the roles of nurses and chamber operators as well. Johns Hopkins advises asking about the directing clinician’s hyperbaric training and the technicians’ specialized training or certification. Ask how those staff members work with the clinician if a problem arises. A title by itself does not explain who makes clinical decisions during your visit.
- Undersea and Hyperbaric Medicine Subspecialty Certification · American Board of Emergency Medicine
- Complications of Hyperbaric Oxygen Treatment · Johns Hopkins Medicine
Check equipment and safety procedures
Request the chamber manufacturer and model and ask which FDA clearance and labeling apply. FDA classifies hyperbaric chambers under product code CBF and uses the 510(k) pathway. Registration or listing does not establish clearance. The answer should identify the device actually used at the location, rather than discuss hyperbaric equipment in general.
FDA’s August 2025 safety letter emphasizes manufacturer instructions, staff training, patient monitoring, fire prevention, and device maintenance. Ask the facility how it screens personal items and equipment and how patients communicate with staff. You can ask for a clear explanation of the safety process without trying to audit or operate the chamber yourself.
Clarify the response to discomfort and the plan for a medical emergency. Ask who is present, who can assess you, and how transfer to another facility would be arranged if needed. If a clinician elsewhere manages your underlying illness, ask how the teams will communicate and who receives reports about progress or complications.
- Follow Instructions for Safe Use of Hyperbaric Oxygen Therapy Devices — August 25, 2025 · U.S. Food and Drug Administration
- Product Classification: Hyperbaric Chamber, CBF · U.S. Food and Drug Administration
- Are There FDA Registered or FDA Certified Medical Devices? · U.S. Food and Drug Administration
Get a written care plan
Ask for a written description of the clinical goal, the reason for the recommendation, the alternatives discussed, and the plan for assessing progress. A meaningful goal should refer to your condition and functioning, rather than a general promise of better health. Ask which uncertainties could change the recommendation.
For uses outside the UHMS accepted list, ask the clinician to explain the supporting evidence and how the service is being presented. Distinguish established care from an emerging application or a research opportunity. Request enough information for another qualified clinician to consider the same proposal.
Finally, ask for the estimate and follow-up responsibilities in writing. You may want time to discuss the plan with your referring clinician or seek another opinion. Organize your notes into answered questions and remaining questions rather than awarding a provider a score from advertising, testimonials, or the appearance of the office.
- Indications for Hyperbaric Oxygen Therapy · Undersea and Hyperbaric Medical Society
- Hyperbaric Oxygen Therapy: Get the Facts — FDA bulletin, July 26, 2021 · U.S. Food and Drug Administration
- Hyperbaric Oxygen Therapy — December 6, 2024 · Mayo Clinic
Questions to ask
- Is this exact location currently listed as UHMS accredited?
- Who evaluates, prescribes, and supervises my care?
- What credentials can I verify independently?
- What chamber model is used and what labeling applies?
- What written plan, progress assessment, and emergency procedures will I receive?
Sources
- UHMS Accredited Clinical Hyperbaric Medicine Facilities · Undersea and Hyperbaric Medical Society
- Ten Guidelines for Patients and Referring Physicians in Selecting Safe Hyperbaric Oxygen Treatments — April 2025 · Undersea and Hyperbaric Medical Society
- Undersea and Hyperbaric Medicine Subspecialty Certification · American Board of Emergency Medicine
- Complications of Hyperbaric Oxygen Treatment · Johns Hopkins Medicine
- Follow Instructions for Safe Use of Hyperbaric Oxygen Therapy Devices — August 25, 2025 · U.S. Food and Drug Administration
- Product Classification: Hyperbaric Chamber, CBF · U.S. Food and Drug Administration
- Are There FDA Registered or FDA Certified Medical Devices? · U.S. Food and Drug Administration
- Hyperbaric Oxygen Therapy: Get the Facts — FDA bulletin, July 26, 2021 · U.S. Food and Drug Administration
- Indications for Hyperbaric Oxygen Therapy · Undersea and Hyperbaric Medical Society
- Hyperbaric Oxygen Therapy — December 6, 2024 · Mayo Clinic