Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. John Patrick Mccullough, FNP-C

Nurse Practitioner in Knoxville, TN · enumerated 2023.

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

National Provider Identifier

1538854658

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Registry record

Entity type Individual (Type 1)

Name Mr. John Patrick Mccullough

Credential FNP-C

Sex Male

Practice address 501 20th St Ste 503, Knoxville, TN, 37916

Phone (865) 331-4321

Fax (865) 374-2078

Enumeration date Apr 5, 2023

Last updated in NPPES Jul 8, 2026

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 33790 (TN) Primary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 33790 (TN) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 33790 (TN) Secondary

Other identifiers

Identifier	Type	State	Issuer
Q082264	Medicaid	TN	-

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 John Mccullough's NPI record?

Cross-check NPI 1538854658 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1538854658 active?

Yes, as of the latest NPPES snapshot, NPI 1538854658 is active (record last updated 2026-07-08).

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