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Dr. Peter Zajac, DO

Surgery Physician in Moses Lake, WA · enumerated 2019.

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

National Provider Identifier

1477110419

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Registry record

Entity type Individual (Type 1)
Name Dr. Peter Zajac
Credential DO
Sex Male
Practice address 1550 S Pioneer Way, Moses Lake, WA, 98837
Phone (509) 793-9792
Fax (509) 764-3287
Enumeration date May 24, 2019
Last updated in NPPES May 4, 2026

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License OP61502695 (WA) 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
2291811 Medicaid WA -

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

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.
What specialty is Peter Zajac?
Peter Zajac is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-04.