Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gregory John Martin

Preventive Medicine/Occupational Environmental Medicine Physician in Olympia, WA · enumerated 2006.

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

National Provider Identifier

1033199393

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Registry record

Entity type Individual (Type 1)

Name Dr. Gregory John Martin

Sex Male

Practice address 700 Lilly Rd Ne, Olympia, WA, 98506

Phone (360) 923-7000

Enumeration date Jan 20, 2006

Last updated in NPPES Apr 27, 2021

Taxonomy & licenses

2083P0500X Preventive Medicine/Occupational Environmental Medicine Physician Allopathic & Osteopathic Physicians · License MD60346678 (WA) Primary

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.

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Frequently asked questions

Where does Gregory Martin practice?

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

What is the NPI number for Gregory Martin?

The National Provider Identifier (NPI) for Gregory Martin is 1033199393, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-27.