Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Douglas A Koekkoek, MD

Hospitalist Physician in Portland, OR · enumerated 2006.

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

National Provider Identifier

1275628166

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Registry record

Entity type Individual (Type 1)

Name Douglas A Koekkoek

Credential MD

Sex Male

Practice address 4805 Ne Glisan St, Ste Bg05, Portland, OR, 97213

Phone (503) 215-2393

Enumeration date Oct 4, 2006

Last updated in NPPES Mar 31, 2017

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD16043 (OR) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License MD16043 (OR) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
110082876	Other	OR	RR MEDICARE - PH&S - OREGON (PMG)
046453	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

How do I verify Douglas Koekkoek's NPI record?

Cross-check NPI 1275628166 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1275628166 active?

Yes, as of the latest NPPES snapshot, NPI 1275628166 is active (record last updated 2017-03-31).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-31.