NPI Atlas

Mrs. Tish K Williams, P.A.

Physician Assistant in San Antonio, Texas. NPI 1538266556.

NPI1538266556

Registry record

NPI
1538266556
Profession
Physician Assistant (PA)
Specialty
Physician Assistant (363A00000X)
Practice address
7400 Merton Minter St
San Antonio, TX 78229
Phone
2106175300
In the registry since
September 20, 2006
Last NPPES update
December 21, 2025
Sole proprietor
No
License
PA10322 (TX)

At this location

85 other providers in our data list 7400 Merton Minter St, San Antonio as a practice address:

In context

The NPI number of Tish Williams is 1538266556. They are a Physician Assistant in San Antonio, Texas.

Tish Williams 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 19 years, since September 20, 2006.

Frequently asked questions

What is NPI 1538266556?

NPI 1538266556 is the 10-digit National Provider Identifier assigned to Tish Williams, a Physician Assistant practicing in San Antonio, Texas. The record has been in the NPPES registry since September 20, 2006.

How do I verify this provider?

Cross-check NPI 1538266556 in the official CMS registry at npiregistry.cms.hhs.gov, and confirm license PA10322 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 December 21, 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.