Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Margaret Marie Kelner, FNP

Family Nurse Practitioner in San Marcos, TX · enumerated 2012.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1366786394

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Registry record

Entity type Individual (Type 1)

Name Margaret Marie Kelner

Credential FNP

Sex Female

Practice address 2406 Hunter Rd, Suite 106, San Marcos, TX, 78666

Phone (512) 396-7686

Fax (512) 396-8006

Enumeration date Nov 15, 2012

Last updated in NPPES Nov 15, 2012

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 544490 (TX) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Margaret Kelner's NPI record?

Cross-check NPI 1366786394 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1366786394 active?

Yes, as of the latest NPPES snapshot, NPI 1366786394 is active (record last updated 2012-11-15).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-11-15.