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

Leonard Anderson Walker III, MD

Emergency Medicine Physician in Hermitage, TN · enumerated 2006.

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

National Provider Identifier

1265495576

Verified

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Registry record

Entity type Individual (Type 1)

Name Leonard Anderson Walker III

Credential MD

Sex Male

Practice address Hermitage, TN, 37076

Phone (615) 316-3541

Enumeration date Apr 8, 2006

Last updated in NPPES Aug 6, 2017

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

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 20690 (TN) Secondary

207PE0004X Emergency Medical Services (Emergency Medicine) Physician Allopathic & Osteopathic Physicians · License MD00020690 (TN) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License MD0000020690 (TN) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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 Leonard Walker?

The National Provider Identifier (NPI) for Leonard Walker is 1265495576, a Type 1 (individual) record in the CMS NPPES registry.

Where does Leonard Walker practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-08-06.