Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Caleb Walker, PMHNP

Q: What is the NPI number for John Walker?

The National Provider Identifier (NPI) for John Walker is 1275186843, a Type 1 (individual) record in the CMS NPPES registry.

Psychiatric/Mental Health Nurse Practitioner in Laughlin Afb, TX · enumerated 2019 · practices at 47th Medgrp-Laughlin.

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

National Provider Identifier

1275186843

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Registry record

Entity type Individual (Type 1)

Name John Caleb Walker

Credential PMHNP

Sex Male

Practice address 590 Mitchell Blvd Bldg 375, Laughlin Afb, TX, 78843

Phone (830) 298-6422

Enumeration date Jul 22, 2019

Last updated in NPPES Jun 23, 2025

Taxonomy & licenses

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License L8-0000185 (DE) Primary

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

Where does John Walker practice?

The practice location on file with NPPES is in Laughlin Afb, TX. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for John Walker?

The National Provider Identifier (NPI) for John Walker is 1275186843, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-23.