Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. John Marshall Fox, LPC

Q: What is the NPI number for John Fox?

The National Provider Identifier (NPI) for John Fox is 1336340876, a Type 1 (individual) record in the CMS NPPES registry.

Professional Counselor in Herndon, VA · enumerated 2007.

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

National Provider Identifier

1336340876

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Registry record

Entity type Individual (Type 1)

Name Mr. John Marshall Fox

Credential LPC

Sex Male

Practice address Herndon, VA, 20170

Phone (703) 787-8526

Enumeration date May 31, 2007

Last updated in NPPES Jul 8, 2007

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 0701003396 (VA) Primary

LPC — Licensed Professional Counselor: A licensed mental-health counselor providing psychotherapy. About the LPC 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

What is the NPI number for John Fox?

The National Provider Identifier (NPI) for John Fox is 1336340876, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Fox practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.