Registry record
- NPI
- 1760368435
- Profession
- Nurse Practitioner (NP)
- Specialty
- Gerontology Nurse Practitioner (363LG0600X)
- Practice address
- 3422 Maguey Trl
San Antonio, TX 78245 - Phone
- 2108852985
- In the registry since
- August 15, 2025
- Last NPPES update
- September 15, 2025
- Sole proprietor
- Yes
- License
- 1209358 (TX)
At this location
This location lists no other NP or PA providers in our current data.
In context
The NPI number of Mark Castillo is 1760368435. They are a Gerontology Nurse Practitioner in San Antonio, Texas.
Mark Castillo is one of 135 Gerontology Nurse Practitioners in San Antonio and one of 1,529 across Texas in our data. San Antonio ranks #3 among Texas cities in our dataset, with 3,972 NP and PA providers.
Frequently asked questions
What is NPI 1760368435?
NPI 1760368435 is the 10-digit National Provider Identifier assigned to Mark Castillo, a Gerontology Nurse Practitioner practicing in San Antonio, Texas. The record has been in the NPPES registry since August 15, 2025.
How do I verify this provider?
Cross-check NPI 1760368435 in the official CMS registry at npiregistry.cms.hhs.gov, and confirm license 1209358 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 September 15, 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.