Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William J. Koenig, D.O.

Pediatrics Physician in Mcminnville, OR · enumerated 2005.

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

National Provider Identifier

1770588337

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Registry record

Entity type Individual (Type 1)

Name William J. Koenig

Credential D.O.

Sex Male

Practice address 2435 Ne Cumulus Ave Ste A, Mcminnville, OR, 97128

Phone (503) 472-6161

Fax (503) 434-6290

Enumeration date Jun 20, 2005

Last updated in NPPES Oct 12, 2023

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License DO21266 (OR) 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
158934	Medicaid	OR	-

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 1770588337 active?

Yes, as of the latest NPPES snapshot, NPI 1770588337 is active (record last updated 2023-10-12).

How do I verify William Koenig's NPI record?

Cross-check NPI 1770588337 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 2023-10-12.