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Alan Siu MD Inc

Neurological Surgery Physician in Alhambra, CA · enumerated 2024 · authorized official Alan Siu, President.

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

National Provider Identifier

1427880996

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Registry record

Entity type Organization (Type 2)
Legal business name Alan Siu MD Inc
Practice address 1658 W. Valley Blvd, Suite 210, Alhambra, CA, 91803
Phone (571) 249-3327
Enumeration date Aug 14, 2024
Last updated in NPPES Feb 5, 2026

Taxonomy & classification

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Alan Siu
Title President
Phone (571) 249-3327

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 Alan Siu MD Inc?
The NPI for Alan Siu MD Inc is 1427880996, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Alan Siu MD Inc?
NPPES lists Alan Siu (President) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-05.