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Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

County of Los Angeles

Clinic/Center in Glendale, CA · enumerated 2007 · authorized official Quentin O'Brien, Acn, Ceo.

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

National Provider Identifier

1578786018

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Registry record

Entity type Organization (Type 2)
Legal business name County of Los Angeles
Other name <Unavail>
Parent organization County of Los Angeles
Practice address 501 N Glendale Ave, Glendale, CA, 91206
Phone (818) 500-3501
Enumeration date Apr 11, 2007
Last updated in NPPES Oct 22, 2019

Taxonomy & classification

261Q00000X Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Quentin O'Brien
Title Acn, Ceo
Phone (213) 288-9000

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

What is the NPI number for County of Los Angeles?
The NPI for County of Los Angeles is 1578786018, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for County of Los Angeles?
NPPES lists Quentin O'Brien (Acn, Ceo) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-10-22.