NPI Portal NPI Lookup & Verification

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

Walter Michael Krajewski, DO

Family Medicine Physician in York, PA · enumerated 2006.

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

National Provider Identifier

1891724522

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Registry record

Entity type Individual (Type 1)
Name Walter Michael Krajewski
Credential DO
Sex Male
Practice address York, PA, 17402
Phone (717) 757-1755
Fax (717) 757-2055
Enumeration date Jul 3, 2006
Last updated in NPPES Jul 19, 2016

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

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License OS003504L (PA) 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
86826 Medicaid PA -

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 is the NPI number for Walter Krajewski?
The National Provider Identifier (NPI) for Walter Krajewski is 1891724522, a Type 1 (individual) record in the CMS NPPES registry.
Where does Walter Krajewski practice?
The practice location on file with NPPES is in York, PA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-07-19.