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Brian J. Leberthon, MD., A Medical

Hematology & Oncology Physician in West Covina, CA · enumerated 2007 · authorized official Brian Leberthon, M.D. , President of Corp..

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

National Provider Identifier

1821202060

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Registry record

Entity type Organization (Type 2)
Legal business name Brian J. Leberthon, MD., A Medical
Practice address 1135 S Sunset Ave, Suite 207, West Covina, CA, 91790
Phone (626) 338-9560
Fax (626) 338-9360
Enumeration date May 9, 2007
Last updated in NPPES Dec 13, 2010

Taxonomy & classification

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License G79934 (CA) Primary

Authorized official

Name Brian Leberthon
Title M.D. , President of Corp.
Phone (626) 338-9560

Other identifiers

Identifier Type State Issuer
00G799340 Medicaid CA -

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 J. Leberthon, MD., A Medical?
The NPI for Brian J. Leberthon, MD., A Medical is 1821202060, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Brian J. Leberthon, MD., A Medical?
NPPES lists Brian Leberthon (M.D. , President of Corp.) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-13.