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

County of Los Angeles

Clinic/Center in El Monte, CA · enumerated 2009 · authorized official Quentin O'Brien, Ambulatory Network, Ceo.

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

National Provider Identifier

1316187255

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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 4024 North Durfee Rd, El Monte, CA, 91732
Phone (626) 455-4660
Enumeration date Mar 5, 2009
Last updated in NPPES Jun 18, 2021

Taxonomy & classification

261Q00000X Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Quentin O'Brien
Title Ambulatory Network, 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

Who is the authorized official for County of Los Angeles?
NPPES lists Quentin O'Brien (Ambulatory Network, Ceo) as the authorized official for this organization.
What is the NPI number for County of Los Angeles?
The NPI for County of Los Angeles is 1316187255, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-18.