15 Undersea and Hyperbaric Medicine (Emergency Medicine) providers practice in California, including 3 (20%) offering telehealth. The largest concentration is in San Diego. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
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From CMS Medicare enrollment records covering 8 of the 15 providers listed here (53%). Providers who do not bill Medicare are not included in these figures.
| Group (as registered with Medicare) | Undersea and Hyperbaric Medicine Doctors (Emergency Medicine) | All clinicians in group | Main city |
| Regents of the University of California | 4 | 2,047 | San Diego |
| Hospital | City | Ownership | CMS star rating | Undersea and Hyperbaric Medicine Doctors (Emergency Medicine) affiliated |
| UC San Diego Health Hillcrest - Hillcrest Med Ctr | San Diego | Nonprofit | 5 of 5 | 4 |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
There are 15 Undersea and Hyperbaric Medicine (Emergency Medicine) providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Yes. 3 of the 15 Undersea and Hyperbaric Medicine (Emergency Medicine) providers in California (about 20%) report offering telehealth services in CMS data.
San Diego (5), La Jolla (2), Fairfield (2) have the highest concentration of Undersea and Hyperbaric Medicine (Emergency Medicine) providers in California.
Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
According to CMS facility affiliation records, the California hospitals where the most Undersea and Hyperbaric Medicine Doctors (Emergency Medicine) hold privileges are UC San Diego Health Hillcrest - Hillcrest Med Ctr in San Diego.
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