Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

John C. Martin D.M.D., M.S.

Q: What type of organization is John C. Martin D.M.D., M.S.?

John C. Martin D.M.D., M.S. is registered in NPPES as a Orthodontics and Dentofacial Orthopedics Dentistry (its primary provider taxonomy).

Orthodontics and Dentofacial Orthopedics Dentistry in Conyers, GA · enumerated 2007 · authorized official John Martin, Orthodontist.

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

National Provider Identifier

1679619118

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Registry record

Entity type Organization (Type 2)

Legal business name John C. Martin D.M.D., M.S.

Other name <Unavail>

Practice address 1728 Highway 138 Se, Suite 130, Conyers, GA, 30013

Phone (770) 761-1330

Fax (770) 761-1991

Enumeration date Jan 30, 2007

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License 008367 (GA) Primary

Authorized official

Name John Martin

Title Orthodontist

Phone (770) 761-1330

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 a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is John C. Martin D.M.D., M.S.?

John C. Martin D.M.D., M.S. is registered in NPPES as a Orthodontics and Dentofacial Orthopedics Dentistry (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.