NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

California Occupational Medical Professionals

Occupational Medicine Clinic/Center in Oroville, CA · enumerated 2011 · authorized official Callie Quarels Larson, Administrator.

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

National Provider Identifier

1144500562

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name California Occupational Medical Professionals
Other name <Unavail>
Practice address 1940 Feather River Blvd, Suite #O, Oroville, CA, 95965
Phone (530) 534-5135
Fax (530) 532-0259
Enumeration date Aug 17, 2011
Last updated in NPPES Aug 17, 2011

Taxonomy & classification

261QX0100X Occupational Medicine Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Callie Quarels Larson
Title Administrator
Phone (530) 534-5135

Other identifiers

Identifier Type State Issuer
CA 194 Other - LABORATORY ID

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 a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is California Occupational Medical Professionals?
California Occupational Medical Professionals is registered in NPPES as a Occupational Medicine Clinic/Center (its primary provider taxonomy).

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-08-17.