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

Dr. Leonard J Martin, DDS

General Practice Dentistry in Oneida, TN · enumerated 2009 · practices at Mountain Peoples Health Councils Inc.

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

National Provider Identifier

1265761498

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Registry record

Entity type Individual (Type 1)

Name Dr. Leonard J Martin

Credential DDS

Sex Male

Practice address Oneida, TN, 37841

Phone (423) 286-8600

Fax (423) 286-8644

Enumeration date Dec 17, 2009

Last updated in NPPES Dec 5, 2022

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

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License DS3271 (TN) Primary

1223G0001X General Practice Dentistry Dental Providers · License 003271 (TN) Secondary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Other identifiers

Identifier	Type	State	Issuer
DS3271	Other	TN	TENNESSEE STATE LICENSE

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 Martin?

The National Provider Identifier (NPI) for Leonard Martin is 1265761498, a Type 1 (individual) record in the CMS NPPES registry.

Where does Leonard Martin practice?

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

Other providers at this practice address

Browse all →

Mountain Peoples Health Councils Inc Dental Clinic/Center · Oneida, TN NPI 1649635939 Ashley Fleck General Practice Dentistry · Oneida, TN NPI 1972170249 Mia Lasher General Practice Dentistry · Oneida, TN NPI 1538853627 Irene Duck Dentist · Oneida, TN NPI 1093491896 Caleb Leborious Dentist · Oneida, TN NPI 1518764844

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-12-05.