Ryan Siu
Ryan Siu is a General Practice Physician in Jbsa Ft Sam Houston, TX, registered under NPI 1831781442. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 3551 ROGER BROOKE DR, Jbsa Ft Sam Houston, TX 78234. 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 |
|---|---|---|
| 0101277519 | VA | General Practice Physician primary |
| 0101277519 | VA | Orthopaedic Surgery Physician |
This provider holds licence 0101277519 issued in VA. 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
- Order And Referring Only - Orthopedic Surgery
- PAC ID
- 0446746259
- Enrollment ID
- I20251231002522
Medicare enrolment is recorded as approved under the provider type Order And Referring Only - Orthopedic Surgery. 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.
What General Practice covers
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. NUCC Health Care Provider Taxonomy, code 208D00000X
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 | |
|---|---|---|---|---|
| 208D00000X | General Practice Physician | 0101277519 | VA | primary |
| 207X00000X | Orthopaedic Surgery Physician | 0101277519 | VA | |
| 390200000X | Student in an Organized Health Care Education/Training Program | — | — |
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 | 1831781442 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 4, 2021 |
| Last updated | Mar 3, 2023 |
| Status | Active |
| Sole proprietor | No |
| Practice address |
3551 ROGER BROOKE DR Jbsa Ft Sam Houston, TX 78234 (210) 916-1284 |
| Mailing address |
1100 WILFORD HALL LOOP BLDG 4554 Jbsa Lackland, TX 78236 |
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 | 8 | 3 | 1 | 7 | 8 | 1 | 4 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 6 | 1 | 5 | 8 | 2 | 4 | 8 |
Sum = 68 · next multiple of 10 = 70 · check digit = 2 · actual last digit = 2
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.