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Frank S.F. Hsu, M.D., A Professional Corporation

Endocrinology, Diabetes & Metabolism Physician in Hayward, CA · enumerated 2012 · authorized official Frank Hsu, President.

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

National Provider Identifier

1407122633

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Registry record

Entity type Organization (Type 2)
Legal business name Frank S.F. Hsu, M.D., A Professional Corporation
Practice address 21297 Foothill Blvd Ste 102, Hayward, CA, 94541
Phone (510) 538-4870
Fax (510) 538-6475
Enumeration date Apr 2, 2012
Last updated in NPPES Apr 2, 2012

Taxonomy & classification

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License C39702 (CA) Primary

Authorized official

Name Frank Hsu
Title President
Phone (510) 538-4870

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 Frank S.F. Hsu, M.D., A Professional Corporation?
NPPES lists Frank Hsu (President) as the authorized official for this organization.
What is the NPI number for Frank S.F. Hsu, M.D., A Professional Corporation?
The NPI for Frank S.F. Hsu, M.D., A Professional Corporation is 1407122633, 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 2012-04-02.