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

Dr. Nicholaus Bruce Martin, MD

General Practice Physician in Flagstaff, AZ · enumerated 2005 · practices at Occupational Health Centers of the Southwest, P.A. (Az).

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

National Provider Identifier

1629053236

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Nicholaus Bruce Martin

Credential MD

Sex Male

Practice address Flagstaff, AZ, 86001

Phone (928) 773-9695

Fax (928) 773-0208

Enumeration date Dec 7, 2005

Last updated in NPPES Jan 22, 2010

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

Taxonomy & licenses

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 18430 (AZ) Primary

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 40573 (CO) Secondary

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 specialty is Nicholaus Martin?

Nicholaus Martin is registered in NPPES with the primary taxonomy of General Practice Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Occupational Health Centers of the Southwest, P.A. (Az) Clinic/Center · Flagstaff, AZ NPI 1386656791 Sandra Glick-Ridley Physical Therapist · Flagstaff, AZ NPI 1114160363

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-01-22.