Mr. Gregory F. Koors, D.C.

Mr. Gregory F. Koors is a Chiropractor provider (Chiropractor) practicing in Eugene, OR, registered in the NPPES registry with NPI 1609829266 since 2006. The credential DC stands for Doctor of Chiropractic.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1609829266
Entity type	Individual (Type 1)
Name	Mr. Gregory F. Koors
Credential	D.C.
Sex	Male
Practice address	Eugene, OR, 97405
Phone	5416835678
Fax	5413437350
Enumeration date	2006-05-17
Last updated in NPPES	2010-06-21

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

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
111N00000X	Chiropractor	Primary	2657	OR

DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Copy-ready billing details

Provider: Gregory Koors, D.C.
NPI: 1609829266
Taxonomy: 111N00000X (Chiropractor)
Address: Eugene, OR, 97405

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1992959472	Nicole Schmidt	Individual	Chiropractor	Eugene, OR

Verify this record

Cross-check NPI 1609829266 against the authoritative CMS record: view Mr. Gregory F. Koors on the official NPPES registry .

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. Read the full guide or validate an NPI number.

Frequently asked questions

What specialty is Gregory Koors?

Gregory Koors is registered in NPPES with the primary taxonomy of Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2010-06-21.