Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gerard Martin Breitzer, D.O.

Pediatrics Physician in Okemos, MI · enumerated 2006.

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

National Provider Identifier

1669414116

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Registry record

Entity type Individual (Type 1)

Name Dr. Gerard Martin Breitzer

Credential D.O.

Sex Male

Practice address 1600 W Grand River Ave, Ste 2, Okemos, MI, 48864

Phone (517) 349-6560

Fax (517) 349-5796

Enumeration date Jun 11, 2006

Last updated in NPPES Jun 14, 2016

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 5101007628 (MI) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
1669414116	Medicaid	MI	-
3343821	Medicaid	MI	-

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 Gerard Breitzer?

Gerard Breitzer is registered in NPPES with the primary taxonomy of Pediatrics 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-06-14.