NPI Atlas

Mark Christopher Gwin, FNP

Family Nurse Practitioner in San Antonio, Texas. NPI 1942900295.

NPI1942900295

Registry record

NPI
1942900295
Profession
Nurse Practitioner (NP)
Specialty
Family Nurse Practitioner (363LF0000X)
Practice address
302 W Rector St
San Antonio, TX 78216
In the registry since
March 6, 2023
Last NPPES update
January 9, 2026
Sole proprietor
No
License
1124686 (TX)

At this location

3 other providers in our data list 302 W Rector St, San Antonio as a practice address:

In context

The NPI number of Mark Gwin is 1942900295. They are a Family Nurse Practitioner in San Antonio, Texas.

Mark Gwin is one of 1,496 Family Nurse Practitioners in San Antonio and one of 22,499 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 March 6, 2023.

Frequently asked questions

What is NPI 1942900295?

NPI 1942900295 is the 10-digit National Provider Identifier assigned to Mark Gwin, a Family Nurse Practitioner practicing in San Antonio, Texas. The record has been in the NPPES registry since March 6, 2023.

How do I verify this provider?

Cross-check NPI 1942900295 in the official CMS registry at npiregistry.cms.hhs.gov, and confirm license 1124686 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 January 9, 2026. 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.