NPI Atlas

Ms. Katharine Duncan Linn, RN, FNP

Family Nurse Practitioner in San Marcos, Texas. NPI 1164678645.

NPI1164678645

Registry record

NPI
1164678645
Profession
Nurse Practitioner (NP)
Specialty
Family Nurse Practitioner (363LF0000X)
Practice address
601 University Dr
San Marcos, TX 78666
Phone
5122452161
In the registry since
August 15, 2008
Last NPPES update
August 15, 2008
Sole proprietor
No
License
679013 (TX)

At this location

6 other providers in our data list 601 University Dr, San Marcos as a practice address:

In context

The NPI number of Katharine Linn is 1164678645. They are a Family Nurse Practitioner in San Marcos, Texas.

Katharine Linn is one of 63 Family Nurse Practitioners in San Marcos and one of 22,499 across Texas in our data.

The NPI has been in the federal registry for 17 years, since August 15, 2008.

Frequently asked questions

What is NPI 1164678645?

NPI 1164678645 is the 10-digit National Provider Identifier assigned to Katharine Linn, a Family Nurse Practitioner practicing in San Marcos, Texas. The record has been in the NPPES registry since August 15, 2008.

How do I verify this provider?

Cross-check NPI 1164678645 in the official CMS registry at npiregistry.cms.hhs.gov, and confirm license 679013 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 August 15, 2008. 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.