Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gary Lee Martz, M.D.

Q: What is the NPI number for Gary Martz?

The National Provider Identifier (NPI) for Gary Martz is 1003879297, a Type 1 (individual) record in the CMS NPPES registry.

Psychiatry Physician in Denver, CO · enumerated 2006.

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

National Provider Identifier

1003879297

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Registry record

Entity type Individual (Type 1)

Name Gary Lee Martz

Credential M.D.

Sex Male

Practice address 1721 E 19th Ave, Suite 528, Denver, CO, 80218

Phone (303) 813-1400

Fax (303) 813-1401

Enumeration date Apr 9, 2006

Last updated in NPPES Dec 19, 2008

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 25465 (CO) 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

Where does Gary Martz practice?

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

What is the NPI number for Gary Martz?

The National Provider Identifier (NPI) for Gary Martz is 1003879297, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-12-19.