Jacob Krimbill, MD
Jacob Krimbill, MD is a Vascular Surgery Physician in Fort Sam Houston, TX, registered under NPI 1619465549.
Getting there
The practice address on file is 3551 ROGER BROOKE DR, Fort 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 |
|---|---|---|
| U4549 | TX | Vascular Surgery Physician primary |
This provider holds licence U4549 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
- Order And Referring Only - General Surgery
- PAC ID
- 6608113287
Enrolled in Medicare 2 times, across 2 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| Pennsylvania | I20190122001153 | Order And Referring Only - General Surgery |
| Texas | I20250908000324 | Order And Referring Only - Vascular Surgery |
Medicare enrolment is recorded as approved under the provider type Order And Referring Only - General Surgery. There are 2 separate enrolment records across 2 states (PA, TX). 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.
What Vascular Surgery covers
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart. NUCC Health Care Provider Taxonomy, code 2086S0129X
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 | 1619465549 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 26, 2018 |
| Last updated | Aug 13, 2025 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD |
| Practice address |
3551 ROGER BROOKE DR Fort Sam Houston, TX 78234 (210) 539-0000 |
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 | 6 | 1 | 9 | 4 | 6 | 5 | 5 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 6 | 2 | 9 | 8 | 6 | 1 | 5 | 8 |
Sum = 71 · next multiple of 10 = 80 · check digit = 9 · actual last digit = 9
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.