David Nichols, M.D.
David Nichols, M.D. is an Undersea and Hyperbaric Medicine (Emergency Medicine) Physician in San Angelo, TX, registered under NPI 1003951245. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 2018 PULLIAM ST, San Angelo, TX 76905. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| N0321 | TX | Undersea and Hyperbaric Medicine… primary |
| N0321 | TX | Hospitalist Physician |
This provider holds licence N0321 issued in TX. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Emergency Medicine
- PAC ID
- 0749388817
Medicare enrolment is recorded as approved under the provider type Practitioner - Emergency Medicine. This means the provider is enrolled to bill Medicare, though it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Undersea and Hyperbaric Medicine covers
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. NUCC Health Care Provider Taxonomy, code 207PE0005X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207PE0005X | Undersea and Hyperbaric Medicine (Emergency Medicine) Physician Undersea and Hyperbaric Medicine | N0321 | TX | primary |
| 208M00000X | Hospitalist Physician | N0321 | TX |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003951245 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 21, 2007 |
| Last updated | Oct 11, 2018 |
| Status | Active |
| Sole proprietor | No |
| Credential | M.D. |
| Practice address |
2018 PULLIAM ST San Angelo, TX 76905 (325) 659-7290 Fax (325) 659-7291 |
| Mailing address |
730 EAST EUREKA STREET Weatherford, TX 76086 |
| Other identifiers |
N0321
· LICENSE (TX) 203778902 (TX) |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 9 | 5 | 1 | 2 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 9 | 5 | 2 | 2 | 8 |
Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.