Alexander Nguyen, M.D.
Alexander Nguyen, M.D. is a Pain Medicine (Anesthesiology) Physician in Seattle, WA, registered under NPI 1487186581. 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 925 SENECA STREET MAIL STOP H8-GME, Seattle, WA 98101. 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 |
|---|---|---|
| 317013-01 | NY | Pain Medicine (Anesthesiology) Physician primary |
| 317013-01 | NY | Anesthesiology Physician |
| 036176521 | IL | Anesthesiology Physician |
Licences are recorded in 2 states: NY, IL. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Anesthesiology
- PAC ID
- 2860760113
Enrolled in Medicare 3 times, across 3 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| New York | I20220830001471 | Practitioner - Anesthesiology |
| Illinois | I20250913000660 | Practitioner - Anesthesiology |
| Michigan | I20251129000612 | Practitioner - Anesthesiology |
Medicare enrolment is recorded as approved under the provider type Practitioner - Anesthesiology. There are 3 separate enrolment records across 3 states (NY, IL, MI). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
Licensed in 2 states
This provider holds licences in 2 states: Illinois and New York. Multi-state licensure often means the provider works near a state border, covers more than one office, or delivers care by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- 317013-01
- Specialty
- Pain Medicine (Anesthesiology) Physician
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
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
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207LP2900X | Pain Medicine (Anesthesiology) Physician Pain Medicine | 317013-01 | NY | primary |
| 207L00000X | Anesthesiology Physician | 317013-01 | NY | |
| 207L00000X | Anesthesiology Physician | 036176521 | IL |
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 | 1487186581 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 29, 2017 |
| Last updated | Aug 21, 2025 |
| Status | Active |
| Sole proprietor | No |
| Credential | M.D. |
| Practice address |
925 SENECA STREET MAIL STOP H8-GME Seattle, WA 98101 (206) 583-6079 |
| Mailing address |
925 SENECA ST MAIL STOP H8-GME Seattle, WA 98101 |
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 | 4 | 8 | 7 | 1 | 8 | 6 | 5 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 4 | 7 | 7 | 2 | 8 | 3 | 5 | 7 |
Sum = 69 · next multiple of 10 = 70 · check digit = 1 · actual last digit = 1
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.