Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Nathan Allen Williamson, APRN, NP-C

Family Nurse Practitioner in Fort Smith, AR · enumerated 2016.

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

National Provider Identifier

1306393061

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Registry record

Entity type Individual (Type 1)

Name Mr. Nathan Allen Williamson

Credential APRN, NP-C

Sex Male

Practice address 3700 Cliff Dr, Fort Smith, AR, 72903

Phone (479) 259-9286

Enumeration date Sep 9, 2016

Last updated in NPPES Oct 30, 2019

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License A004897 (AR) Primary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN 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

Is NPI 1306393061 active?

Yes, as of the latest NPPES snapshot, NPI 1306393061 is active (record last updated 2019-10-30).

How do I verify Nathan Williamson's NPI record?

Cross-check NPI 1306393061 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-10-30.