Registry record
- NPI
- 1528791456
- Profession
- Nurse Practitioner (NP)
- Specialty
- Nurse Practitioner (363L00000X)
- Practice address
- 4411 Medical Dr Ste 120
San Antonio, TX 78229 - Phone
- 2106145400
- In the registry since
- July 7, 2022
- Last NPPES update
- July 23, 2025
- Sole proprietor
- Yes
- License
- 1086577 (TX)
At this location
4 other providers in our data list 4411 Medical Dr Ste 120, San Antonio as a practice address:
- Mrs. Courtney Blaine Garza, FNP-C
Nurse Practitioner · NPI 1669980603
- Celinda Ileana Guerra, PA
Physician Assistant · NPI 1265550586
- Kaitlyn Moorhouse, AGACNP-BC
Nurse Practitioner · NPI 1366191306
- Tarah E Wilson, PA
Physician Assistant · NPI 1548735228
In context
The NPI number of William Stiles is 1528791456. They are a Nurse Practitioner in San Antonio, Texas.
William Stiles is one of 531 Nurse Practitioners in San Antonio and one of 6,739 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 3 years, since July 7, 2022.
Frequently asked questions
What is NPI 1528791456?
NPI 1528791456 is the 10-digit National Provider Identifier assigned to William Stiles, a Nurse Practitioner practicing in San Antonio, Texas. The record has been in the NPPES registry since July 7, 2022.
How do I verify this provider?
Cross-check NPI 1528791456 in the official CMS registry at npiregistry.cms.hhs.gov, and confirm license 1086577 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 July 23, 2025. 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.