For Physicians
Refer a Patient for Hyperbaric Oxygen Therapy
Generations Wellness is a physician-directed outpatient HBOT center in downtown Modesto using hard-shell monoplace chambers. Dr. Rajwinder Singh Bahia, MD, directs care, and every patient has a physician assessment before any course. To refer, call (369) 222-0979 or email marketing@generationswellness.net.
Referrals
How to Refer a Patient
- Call (369) 222-0979. Tell the team you are referring a patient. This is the preferred route, and the fastest for time-sensitive indications such as a compromised flap or sudden sensorineural hearing loss.
- Email marketing@generationswellness.net. Use email to start a referral conversation or ask a general question. Please do not include protected health information in standard email; we will arrange how records are exchanged when we speak.
- Or have the patient call us directly. A referral is not required for a patient to request an assessment, though knowing the referring clinician lets us coordinate from the start.
After a referral, we contact the patient to schedule a physician assessment. Sessions are by appointment. Generations Wellness is an outpatient center and does not provide emergency hyperbaric treatment; acute carbon monoxide poisoning, decompression sickness and arterial gas embolism should go to an emergency department and a hospital-based chamber via 911.
Referral Criteria
Indications We Evaluate (FDA-Cleared, UHMS-Recognized)
We evaluate patients for outpatient indications on the FDA-cleared and UHMS-recognized lists. Candidacy is determined at the physician assessment. The protocols below are typical published norms, not a fixed prescription; the treating physician individualizes pressure, duration and session count.
| Indication | Key criteria to document | Typical protocol | Listed in NCD 20.29 |
|---|---|---|---|
| Diabetic foot ulcer | Wagner grade ≥3; ≥30 days of adequate standard wound care without measurable improvement; vascular status | 2.0–2.5 ATA, ~90 min, 20–40 treatments | Yes, when all three criteria are met |
| Delayed radiation injury (soft-tissue radionecrosis, osteoradionecrosis, radiation cystitis or proctitis) | Radiation site, dose and dates; imaging; symptom history | ~2.4 ATA, 90 min, 30–40 treatments | Yes, as adjunct (osteoradionecrosis, soft-tissue radionecrosis) |
| Dental extraction in an irradiated jaw | Radiation history; planned procedure and date | Marx protocol: 20 before, 10 after, at 2.4 ATA/90 min | Adjunct for established osteoradionecrosis; prophylaxis evidence is contested (see HOPON) |
| Compromised grafts and flaps | Operative note, date of surgery, current photos | Individualized; time-sensitive | Yes |
| Chronic refractory osteomyelitis | Cultures, debridement dates, antibiotic plan, imaging | 20–40 treatments, with surgery and culture-directed antibiotics | Yes |
| Idiopathic sudden sensorineural hearing loss | Audiogram, date of onset, steroid plan | With steroids, ideally within 2 weeks of onset; salvage within 1 month | No |
| Selected problem wounds | Wound history, prior therapies, vascular assessment | Individualized | Only specific listed categories |
| Emergency indications (CO poisoning, DCS, gas embolism, necrotizing infections, crush injury) | Hospital-based chambers via 911 or the emergency department. We do not provide emergency HBOT. | ||
In the HOPON randomized trial (Shaw 2019), osteoradionecrosis at 6 months was 6.4% with HBOT versus 5.7% without (OR 1.13, p=1.0), so the prophylactic role in irradiated-jaw extractions remains debated even though the Marx protocol is still widely used. We present that evidence to patients honestly. See the full indications list. We do not market HBOT for uses that are not FDA-cleared.
Records
What to Send With the Referral
Complete records shorten the time to assessment. When we speak, we will arrange a secure way to receive:
- Patient demographics and insurance information (for the record; see coverage status below)
- Diagnosis with ICD-10 code, history and physical
- For wounds: location, measurements, photos, Wagner grade, duration and dates of standard care, vascular studies
- For radiation injury: radiation treatment summary (site, dose, dates) and relevant imaging
- Operative notes for grafts, flaps or debridement
- Cultures, pathology and imaging for osteomyelitis
- Audiogram and onset date for sudden hearing loss
- Full medication list, flagging bleomycin, doxorubicin, cisplatin, disulfiram and mafenide acetate
- Pulmonary history (pneumothorax, COPD with air trapping, bullae) and ear or sinus history
- Seizure history, pregnancy status, and any implanted devices with make and model
Safety
Contraindications and the Screening We Perform
Per StatPearls, the only absolute contraindication to HBOT is untreated pneumothorax. Relative contraindications require physician judgment:
- Bleomycin: pulmonary fibrosis risk; generally acceptable 3–4 months or more after exposure with normal lung function
- Doxorubicin: commonly held at least 24 hours before HBOT
- Cisplatin: associated with impaired wound healing
- Disulfiram: blocks superoxide dismutase, increasing oxygen-toxicity risk
- Mafenide acetate: risk of CO₂ retention and acidosis
- COPD with air trapping, seizure disorders, recent ear or sinus surgery, upper respiratory congestion, fever, pregnancy, claustrophobia, and implanted devices that need a manufacturer pressure rating
Every patient is screened at the physician assessment, covering lung, ear and sinus history, medications and devices. Additional evaluation, such as chest imaging, may be requested when the history warrants it. Common adverse effects we discuss with patients include middle-ear barotrauma, the most frequent complication, and transient myopia. Central nervous system oxygen-toxicity seizures are rare, reported at roughly 1 per 5,000–10,000 treatments. More detail is on our page on contraindication details.
Candidacy
TcPO₂ and Candidacy Testing
Transcutaneous oximetry (TcPO₂) measures periwound oxygen tension and is used in patient selection for wound indications. StatPearls' review of hyperbaric patient selection describes its use in estimating whether a hypoxic wound bed is likely to respond to hyperoxygenation, including in-chamber measurement. If TcPO₂ or other vascular studies are available, please include the results. The physician assessment determines whether further testing is needed before a course is recommended.
Coordination
What You Can Expect From Us
- A physician assessment first. No patient begins HBOT without one. Some referrals will not be appropriate for HBOT, and we will say so.
- Communication about the plan. With the patient's permission, we share the outcome of the assessment and the proposed treatment plan with your office.
- Progress reviews during the course, so the plan can be adjusted, continued or stopped based on response.
- HBOT as an adjunct. Wound care, antibiotics, surgery and oncologic follow-up remain with you and the patient's other clinicians.
Billing
Coding, Coverage and Self-Pay
Our current status
Generations Wellness currently offers HBOT on a self-pay basis while it works toward insurance contracts. We do not bill commercial insurance, Medicare or Medi-Cal at this time. For patients who meet NCD 20.29 criteria and depend on coverage, a facility that bills their plan may be more appropriate financially, and we will tell the patient that directly. For patients who choose self-pay, pricing is reviewed at the consultation; see self-pay pricing for your patients.
Codes and criteria, for reference
- CPT 99183: physician attendance and supervision of HBOT, per session
- HCPCS G0277: HBOT, full-body chamber, per 30-minute interval (a 90-minute session is 3 units); C1300 was discontinued January 1, 2015
- Medicare: 15 covered conditions under NCD 20.29, with wound reassessment at least every 30 days; see NCD 20.29 criteria
- Prior authorization: not required by Original Medicare when criteria are met; commonly required by commercial and Medicare Advantage plans; see prior authorization
Elements of a letter of medical necessity
Wherever the patient is treated, an effective letter typically states the diagnosis with ICD-10 code, the standard therapies tried and their duration, how each policy criterion is met (for example, Wagner grade and 30-day course), and the proposed protocol and session count.
About the Center
Facility, Equipment and Physician
Treatment is delivered in hard-shell monoplace (single-occupant) chambers. Patients breathe medical-grade oxygen at a physician-prescribed pressure, with trained staff in communication with the patient throughout each session. Care is directed by Dr. Rajwinder Singh Bahia, MD, who assesses patients before any course begins. The center also offers physician-ordered infusion therapy.
Our approach to assessment, screening, monitoring and claims is described on our chamber and safety standards page, and more about the practice is on our about page.
By Specialty
Specialty Notes
Podiatry and wound care
Refer diabetic lower-extremity ulcers once they are Wagner grade 3 or higher and have failed at least 30 days of adequate standard care. Send measurements, serial photos, the offloading and debridement history, and vascular studies. HBOT is an adjunct; your wound care continues. See diabetic foot ulcer.
Radiation oncology
Delayed soft-tissue and bony radiation injury is a recognized indication. RICH-ART (Oscarsson 2019), a randomized phase 2–3 trial at five Nordic centers without sham control, reported greater improvement in urinary symptom scores with HBOT for radiation cystitis compared with standard care. Send the treatment summary with site, dose and completion date.
Urology
For radiation cystitis, send cystoscopy findings, transfusion or hematuria history, and prior interventions. Typical courses are 30–40 treatments.
Oral surgery and dentistry
For established osteoradionecrosis, refer with imaging and radiation history. For extractions in an irradiated jaw, call early: the Marx protocol begins 20 sessions before the procedure, and the evidence for prophylaxis is mixed.
Plastic and reconstructive surgery
Compromised flaps and grafts are time-sensitive. Call rather than email, and send the operative note and current photos. See compromised grafts and flaps.
Otolaryngology
The AAO-HNS 2019 guideline states clinicians may offer HBOT combined with steroids within 2 weeks of onset of sudden sensorineural hearing loss, or as salvage within 1 month. Call promptly and send the audiogram. See sudden hearing loss.
Infectious disease and orthopedics
Chronic refractory osteomyelitis is evaluated as an adjunct to debridement and culture-directed antibiotics. No randomized trials exist; a UHMS review supports adjunctive use. Send cultures, imaging and the antibiotic plan. See chronic refractory osteomyelitis.
For Your Patients
Service Area and Logistics
The center is at 1801 H Street, Suite C-1, Modesto, CA 95354, with street and nearby lot parking. Sessions are by appointment, typically once daily, five days a week, which makes drive time a practical consideration for a 20–40 session course.
| From | Distance | Drive time |
|---|---|---|
| Turlock | ~14 mi | ~19 min |
| Manteca | ~20 mi | ~21 min |
| Stockton | ~33 mi | ~36 min |
| Merced | ~40 mi | ~40 min |
See drive times for your patients across the region, or share our contact and directions page.
Important
A physician assessment is required before beginning HBOT at Generations Wellness. HBOT complements, and never replaces, the treatment prescribed by the patient's doctors.
Questions
Referring Clinicians: Frequently Asked Questions
Does the patient need a referral?
No referral is required to contact us, but we welcome one. Every patient has a physician assessment here before any course, and with the patient's permission we share the plan with you.
What protocol do you use for wounds and radiation injury?
Published norms are commonly 2.0–2.5 ATA for about 90 minutes, once daily, for 20–40 sessions. The pressure and course are prescribed individually by the physician.
Do you treat emergencies such as CO poisoning or decompression sickness?
No. We are an outpatient center. Emergency indications should go through 911 or the emergency department to a hospital-based chamber.
Do you bill the patient's insurance?
Not currently. We are self-pay while we work toward insurance contracts, and we tell patients plainly when a facility that bills their plan may cost them less.
How quickly can a time-sensitive patient be seen?
Call (369) 222-0979 and tell us the indication and timing, such as a compromised flap or hearing loss onset date, so we can discuss scheduling directly.
Sources
- Undersea and Hyperbaric Medical Society. Hyperbaric Oxygen Therapy Indications. uhms.org
- Centers for Medicare & Medicaid Services. National Coverage Determination 20.29, Hyperbaric Oxygen Therapy. cms.gov
- Noridian Healthcare Solutions. Hyperbaric Oxygen (HBO) Therapy billing guidance. noridianmedicare.com
- StatPearls. Hyperbaric Patient Selection. ncbi.nlm.nih.gov
- StatPearls. Hyperbaric Contraindications. ncbi.nlm.nih.gov
- StatPearls. Hyperbaric Complications. ncbi.nlm.nih.gov
- Chandrasekhar SS, et al. Clinical Practice Guideline: Sudden Hearing Loss (Update). Otolaryngology–Head and Neck Surgery, 2019. aao-hnsfjournals.onlinelibrary.wiley.com
- Shaw RJ, et al. HOPON randomized trial. International Journal of Radiation Oncology, Biology, Physics, 2019. redjournal.org
- Oscarsson N, et al. RICH-ART randomized trial. Lancet Oncology, 2019. pubmed.ncbi.nlm.nih.gov
- Undersea and Hyperbaric Medical Society. Hyperbaric Oxygen for Refractory Osteomyelitis. uhms.org
- R3 Healing. Marx Protocols. r3healing.com
Information for licensed clinicians. It is educational, not medical advice, and coverage details change; verify with the payer. A physician assessment is required before HBOT. See our full medical disclaimer.
Refer a Patient
Coordinate Care With Our Team
Call to discuss a patient, request an assessment, or arrange a visit to the center.
Prefer to talk? (369) 222-0979