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Brian Leberthon

Oncology Clinic/Center in West Covina, CA · enumerated 2012 · authorized official Penny Mcgowen, Manager.

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

National Provider Identifier

1568707750

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Registry record

Entity type Organization (Type 2)
Legal business name Brian Leberthon
Practice address 1135 S Sunset Ave, 207, West Covina, CA, 91790
Phone (626) 338-9560
Enumeration date Nov 29, 2012
Last updated in NPPES Nov 29, 2012

Taxonomy & classification

261QX0200X Oncology Clinic/Center Ambulatory Health Care Facilities · License 470405 (CA) Primary

Authorized official

Name Penny Mcgowen
Title Manager
Phone (626) 338-9560

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 Brian Leberthon?
The NPI for Brian Leberthon is 1568707750, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Brian Leberthon?
NPPES lists Penny Mcgowen (Manager) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-11-29.