Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Derek Lewis Allen, FNP

Nurse Practitioner in Madison, TN · enumerated 2025.

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

National Provider Identifier

1417755349

Verified

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Registry record

Entity type Individual (Type 1)

Name Derek Lewis Allen

Credential FNP

Sex Male

Practice address 500 Hospital Dr, Madison, TN, 37115

Phone (615) 769-5000

Enumeration date Mar 5, 2025

Last updated in NPPES Sep 2, 2025

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 39334 (TN) Primary

163W00000X Registered Nurse Nursing Service Providers · License 215488 (TN) Secondary

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

Is NPI 1417755349 active?

Yes, as of the latest NPPES snapshot, NPI 1417755349 is active (record last updated 2025-09-02).

How do I verify Derek Allen's NPI record?

Cross-check NPI 1417755349 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 2025-09-02.