NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dominic Klosowski, MD

Family Medicine Physician in Eugene, OR · enumerated 2022.

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

National Provider Identifier

1265162168

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dominic Klosowski
Credential MD
Sex Male
Practice address 1835 Pearl Street, Eugene, OR, 97401
Phone (541) 762-6050
Fax (541) 762-6021
Enumeration date Jun 14, 2022
Last updated in NPPES Jul 3, 2025

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 4351049991 (MI) Secondary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License MD224652 (OR) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Dominic Klosowski?
The National Provider Identifier (NPI) for Dominic Klosowski is 1265162168, a Type 1 (individual) record in the CMS NPPES registry.
Where does Dominic Klosowski practice?
The practice location on file with NPPES is in Eugene, OR. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-03.