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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Christopher Westra, MD

Internal Medicine Physician in Oshkosh, WI · enumerated 2007.

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

National Provider Identifier

1225156805

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Registry record

Entity type Individual (Type 1)
Name Christopher Westra
Credential MD
Sex Male
Practice address 1855 S Koeller St, Oshkosh, WI, 54902
Fax (920) 223-7105
Enumeration date Mar 26, 2007
Last updated in NPPES Jan 10, 2011

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 40058-020 (WI) Primary
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.

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Frequently asked questions

Is NPI 1225156805 active?
Yes, as of the latest NPPES snapshot, NPI 1225156805 is active (record last updated 2011-01-10).
How do I verify Christopher Westra's NPI record?
Cross-check NPI 1225156805 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-01-10.