John Underwood, M.D.
John Underwood, M.D. is a Pain Medicine (Anesthesiology) Physician in Roswell, NM, registered under NPI 1962467555. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 400 N PENNSYLVANIA AVE STE 570, Roswell, NM 88201. 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 |
|---|---|---|
| MD2019-0235 | NM | Pain Medicine (Anesthesiology) Physician primary |
This provider holds licence MD2019-0235 issued in NM. 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 - Pain Management
- PAC ID
- 5496654022
Medicare enrolment is recorded as approved under the provider type Practitioner - Pain Management. 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 Pain Medicine covers
An anesthesiologist who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic and/or cancer pain in both hospital and ambulatory settings. Patient care needs are also coordinated with other specialists. NUCC Health Care Provider Taxonomy, code 207LP2900X
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 | 1962467555 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 18, 2006 |
| Last updated | Aug 22, 2019 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | M.D. |
| Practice address |
400 N PENNSYLVANIA AVE STE 570 Roswell, NM 88201 (575) 434-0159 Fax (888) 687-6133 |
| Mailing address |
2669 SCENIC DR Alamogordo, NM 88310 |
| Other identifiers |
78176565
(NM) |
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 | 9 | 6 | 2 | 4 | 6 | 7 | 5 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 9 | 3 | 2 | 8 | 6 | 5 | 5 | 1 |
Sum = 65 · next multiple of 10 = 70 · 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.