Registry record
- NPI
- 1811214521
- Profession
- Physician Assistant (PA)
- Specialty
- Physician Assistant (363A00000X)
- Practice address
- 16755 Huebner Rd
San Antonio, TX 78248 - Phone
- 2104934357
- In the registry since
- April 21, 2010
- Last NPPES update
- June 26, 2015
- Sole proprietor
- Yes
- License
- PA09534 (TX)
At this location
2 other providers in our data list 16755 Huebner Rd, San Antonio as a practice address:
- Alexandra Naschke, PA-C
Physician Assistant · NPI 1194183418
- Mrs. Andrea Carol Neve, FNP
Family Nurse Practitioner · NPI 1306352711
In context
The NPI number of Clay Istre is 1811214521. They are a Physician Assistant in San Antonio, Texas.
Clay Istre is one of 882 Physician Assistants in San Antonio and one of 11,405 across Texas in our data. San Antonio ranks #3 among Texas cities in our dataset, with 3,972 NP and PA providers.
The NPI has been in the federal registry for 16 years, since April 21, 2010.
Frequently asked questions
What is NPI 1811214521?
NPI 1811214521 is the 10-digit National Provider Identifier assigned to Clay Istre, a Physician Assistant practicing in San Antonio, Texas. The record has been in the NPPES registry since April 21, 2010.
How do I verify this provider?
Cross-check NPI 1811214521 in the official CMS registry at npiregistry.cms.hhs.gov, and confirm license PA09534 with the TX licensing board. You can also run the number through our free NPI validator to confirm its checksum.
Is this information current?
This profile reflects the June 2026 NPPES data file. NPPES lists the record's last update as June 26, 2015. We refresh our data each month when CMS publishes a new file.
Data: NPPES public registry, June 2026 file. Not medical advice. Verify independently before care or credentialing decisions. Errors in the source record can be corrected at nppes.cms.hhs.gov; see our corrections page.