Registry record
- NPI
- 1598808537
- Profession
- Nurse Practitioner (NP)
- Specialty
- Women's Health Nurse Practitioner (363LW0102X)
- Practice address
- 2800 Airport Hwy 21
San Marcos, TX 78666 - Phone
- 5123966719
- In the registry since
- February 15, 2007
- Last NPPES update
- July 8, 2007
- Sole proprietor
- No
- License
- 236149 (TX)
At this location
This location lists no other NP or PA providers in our current data.
In context
The NPI number of Marianne Clay is 1598808537. They are a Women's Health Nurse Practitioner in San Marcos, Texas.
Marianne Clay is one of 5 Women's Health Nurse Practitioners in San Marcos and one of 1,070 across Texas in our data.
The NPI has been in the federal registry for 19 years, since February 15, 2007.
Frequently asked questions
What is NPI 1598808537?
NPI 1598808537 is the 10-digit National Provider Identifier assigned to Marianne Clay, a Women's Health Nurse Practitioner practicing in San Marcos, Texas. The record has been in the NPPES registry since February 15, 2007.
How do I verify this provider?
Cross-check NPI 1598808537 in the official CMS registry at npiregistry.cms.hhs.gov, and confirm license 236149 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 8, 2007. 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.