Registry record
- NPI
- 1194311852
- Profession
- Physician Assistant (PA)
- Specialty
- Medical Physician Assistant (363AM0700X)
- Practice address
- 1418 Walkers Way Ste 101
San Antonio, TX 78216 - Phone
- 2102457933
- In the registry since
- December 16, 2020
- Last NPPES update
- October 3, 2025
- Sole proprietor
- Yes
- License
- 18130 (TX)
At this location
One other provider in our data lists 1418 Walkers Way Ste 101, San Antonio as a practice address:
- Katherine Wilks
Physician Assistant · NPI 1376262659
In context
The NPI number of Kristen Castro is 1194311852. They are a Medical Physician Assistant in San Antonio, Texas.
Kristen Castro is one of 252 Medical Physician Assistants in San Antonio and one of 2,844 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 5 years, since December 16, 2020.
Frequently asked questions
What is NPI 1194311852?
NPI 1194311852 is the 10-digit National Provider Identifier assigned to Kristen Castro, a Medical Physician Assistant practicing in San Antonio, Texas. The record has been in the NPPES registry since December 16, 2020.
How do I verify this provider?
Cross-check NPI 1194311852 in the official CMS registry at npiregistry.cms.hhs.gov, and confirm license 18130 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 October 3, 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.