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Dr. Chad Krezelok, O.D.

Optometrist in Bozeman, MT · enumerated 2006.

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

National Provider Identifier

1285799650

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Registry record

Entity type Individual (Type 1)
Name Dr. Chad Krezelok
Credential O.D.
Sex Male
Practice address 1500 N 7th Ave, Bozeman, MT, 59715
Phone (406) 585-8153
Enumeration date Dec 26, 2006
Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 782 (MT) Primary
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD 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.

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Frequently asked questions

What specialty is Chad Krezelok?
Chad Krezelok is registered in NPPES with the primary taxonomy of Optometrist. 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 2007-07-09.