Alan Gehrich, M.D.
Alan Gehrich, M.D. is an Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician in Tripler Army Medical Center, HI, registered under NPI 1336156520. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty. 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 1 JARRETT WHITE RD, Tripler Army Medical Center, HI 96859. 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 |
|---|---|---|
| 17942 | HI | Urogynecology and Reconstructive Pelvic… primary |
| 0101053599 | VA | Gynecology Physician |
Licences are recorded in 2 states: HI, VA. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
Licensed in 2 states
This provider holds licences in 2 states: Hawaii and Virginia. The practice address on file is in Tripler Army Medical Center, HI, but a licence in another state usually means they see patients there too — either at a second location or 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
- 17942
- Specialty
- Urogynecology and Reconstructive Pelvic…
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 Urogynecology and Reconstructive Pelvic Surgery covers
A subspecialist in Urogynecology and Reconstructive Pelvic Surgery is a physician in Urology or Obstetrics and Gynecology who, by virtue of education and training, is prepared to provide consultation and comprehensive management of women with complex benign pelvic conditions, lower urinary tract disorders, and pelvic floor dysfunction. Comprehensive management includes those diagnostic and therapeutic procedures necessary for the total care of the patient with these conditions and complications resulting from them. NUCC Health Care Provider Taxonomy, code 207VF0040X
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 | |
|---|---|---|---|---|
| 207VF0040X | Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician Urogynecology and Reconstructive Pelvic Surgery | 17942 | HI | primary |
| 207VG0400X | Gynecology Physician Gynecology | 0101053599 | VA |
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 | 1336156520 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 1, 2006 |
| Last updated | Apr 26, 2025 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | M.D. |
| Practice address |
1 JARRETT WHITE RD Tripler Army Medical Center, HI 96859 (808) 433-6621 Fax (808) 433-1552 |
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 | 3 | 3 | 6 | 1 | 5 | 6 | 5 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 3 | 6 | 6 | 2 | 5 | 3 | 5 | 4 |
Sum = 60 · next multiple of 10 = 60 · check digit = 0 · actual last digit = 0
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.