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Derek Cheung, MD

Internal Medicine Physician in San Marino, CA · enumerated 2017.

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

National Provider Identifier

1336671981

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Registry record

Entity type Individual (Type 1)
Name Derek Cheung
Credential MD
Sex Male
Practice address 375 Huntington Dr Ste G, San Marino, CA, 91108
Phone (626) 441-4231
Enumeration date Apr 3, 2017
Last updated in NPPES Jan 22, 2022

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A158438 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

Where does Derek Cheung practice?
The practice location on file with NPPES is in San Marino, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Derek Cheung?
The National Provider Identifier (NPI) for Derek Cheung is 1336671981, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-01-22.