Undersea and Hyperbaric Medicine (Emergency Medicine) Physician providers in the U.S.
184 NPPES records list undersea and hyperbaric medicine (emergency medicine) physician as their primary taxonomy, about 0.1 per 100,000 residents; Idaho and Maine have the most per resident. 112 of them appear in the Medicare Part D prescriber file: a registry record is not proof of an active practice.
What taxonomy code 207PE0005X means
207PE0005X is the National Uniform Claim Committee code for Emergency Medicine, Undersea and Hyperbaric Medicine, in the grouping Allopathic & Osteopathic Physicians. 184 NPPES records list it as their primary taxonomy (file of Aug 9, 2026).
A specialist who treats decompression illness and diving accident cases and uses hyperbaric oxygen therapy to treat such conditions as carbon monoxide poisoning, gas gangrene, non-healing wounds, tissue damage from radiation and burns, and bone infections. This specialist also serves as a consultant to other physicians in all aspects of hyperbaric chamber operations, and assesses risks and applies appropriate standards to prevent disease and disability in divers and other persons working in altered atmospheric conditions.
Source: NUCC Health Care Provider Taxonomy code set, definition as NUCC publishes it (nucc.org); counts from CMS NPPES.
Most per resident: the 8 highest
Source: CMS NPPES, primary taxonomy 207PE0005X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.
San Antonio has the most, 5
Source: CMS NPPES, primary taxonomy 207PE0005X by practice city, file of Aug 9, 2026.
All 36 states and D.C. with records, by state
| State | Records | Per 100,000 |
|---|---|---|
| Alabama | 3 | 0.1 |
| Arizona | 2 | 0.0 |
| Arkansas | 2 | 0.1 |
| California | 11 | 0.0 |
| Connecticut | 1 | 0.0 |
| Florida | 10 | 0.0 |
| Georgia | 7 | 0.1 |
| Hawaii | 1 | 0.1 |
| Idaho | 13 | 0.7 |
| Illinois | 2 | 0.0 |
| Iowa | 1 | 0.0 |
| Kansas | 6 | 0.2 |
| Louisiana | 10 | 0.2 |
| Maine | 6 | 0.4 |
| Maryland | 2 | 0.0 |
| Massachusetts | 1 | 0.0 |
| Michigan | 2 | 0.0 |
| Minnesota | 4 | 0.1 |
In federal data
- NUCC code207PE0005X · Emergency Medicine
- Size rank447th of 688 specialties by records (0% of all)
- In its family6th of 7 Emergency Medicine codes, 0.2% of the family
- Part D prescribers112 (60.9% of records)
- Part D claims374 a year per prescriber, on average (201st of 496)
- Industry payments66 physicians paid $29K in 2024, $444 each on average
- Concentration8 states hold half of all records
Source: CMS NPPES; Medicare Part D Prescriber PUF; CMS Open Payments 2024. Presence in these files is not a quality judgment.
A sample of undersea and hyperbaric medicine (emergency medicine) physician records
- Bobby LewisBirmingham, AL1720034531
- Douglas Dailey, M.D.Birmingham, AL1528170933
- R Morrow, D.O, F.A.C.E.P, P.AHuntsville, AL1538118815
- Byron Beaver, M.D.North Little Rock, AR1982688800
- Craig Pickren, MDBatesville, AR1427146174
- Sally Jackson, HRNGilbert, AZ1114619459
- Douglas Wright, DOShow Low, AZ1659358059
- Gary Willard, M.D.Carlsbad, CA1588780373
- Sandra Hayes, MDSan Diego, CA1740431444
- William Toppen, M.D.San Diego, CA1215399407
- Andrew Carpenter, MDSan Diego, CA1437998648
- Kenneth Kelly, M.D.San Diego, CA1730224908
Registry order, not a ranking. Search by name to find one provider.
Common questions
How should I read Undersea and Hyperbaric Medicine (Emergency Medicine) Physician's mid-pack national roster?
184 CMS-registered Undersea and Hyperbaric Medicine (Emergency Medicine) Physician providers sit across 37 states; Texas leads with 26. Rank 447th of 688 NUCC specialties by headcount.
How does Undersea and Hyperbaric Medicine (Emergency Medicine) Physician show up in Open Payments mid-pack?
CMS Open Payments 2024 lists 66 Undersea and Hyperbaric Medicine (Emergency Medicine) Physician physicians receiving $29K across 641 payments (average $444; 294th of 470 specialties). Not a quality score.
How much Part D prescribing does this specialty do?
Among Undersea and Hyperbaric Medicine (Emergency Medicine) Physician NPIs, 112 appear in the Medicare Part D Prescriber PUF (average 374 claims and $35K drug cost per prescriber; 201st of 496 specialties by average claims). Non-prescribing clinicians in the same NUCC code are still in NPPES.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy (nucc.org); Medicare Part D Prescriber PUF; CMS Open Payments 2024. Counts are self-designated primary taxonomy, not board certification.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.