6 Undersea and Hyperbaric Medicine (Preventive Medicine) providers practice in Illinois. The largest concentration is in Murphysboro. 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 4 of the 6 providers listed here (67%). Providers who do not bill Medicare are not included in these figures.
| Group (as registered with Medicare) | Undersea and Hyperbaric Medicine Doctors (Preventive Medicine) | All clinicians in group | Main city |
| Southern Illinois Medical Services Nfp | 2 | 331 | Herrin |
| Hospital | City | Ownership | CMS star rating | Undersea and Hyperbaric Medicine Doctors (Preventive Medicine) affiliated |
| St Joseph Memorial Hospital | Murphysboro | Nonprofit | Not rated | 2 |
| Herrin Hospital | Herrin | Nonprofit | 1 of 5 | 2 |
| Memorial Hospital of Carbondale | Carbondale | Nonprofit | 1 of 5 | 2 |
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 6 Undersea and Hyperbaric Medicine (Preventive Medicine) providers with active NPI records practicing in Illinois, according to federal NPPES data refreshed monthly.
Murphysboro (2), Byron (1), Deerfield (1) have the highest concentration of Undersea and Hyperbaric Medicine (Preventive Medicine) providers in Illinois.
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 Illinois hospitals where the most Undersea and Hyperbaric Medicine Doctors (Preventive Medicine) hold privileges are St Joseph Memorial Hospital in Murphysboro; Herrin Hospital in Herrin; Memorial Hospital of Carbondale in Carbondale.
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