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T.H. Choi, A Medical Corporation

Endocrinology, Diabetes & Metabolism Physician in Los Alamitos, CA · enumerated 2006 · authorized official Hoon-Ji Choi, Owner.

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

National Provider Identifier

1295758639

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Registry record

Entity type Organization (Type 2)
Legal business name T.H. Choi, A Medical Corporation
Practice address 3772 Katella Ave Ste 107, Los Alamitos, CA, 90720
Phone (562) 431-7877
Fax (562) 431-7882
Enumeration date Jul 26, 2006
Last updated in NPPES Jun 30, 2025

Taxonomy & classification

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians Secondary
207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Hoon-Ji Choi
Title Owner
Phone (562) 881-3922

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 T.H. Choi, A Medical Corporation?
NPPES lists Hoon-Ji Choi (Owner) as the authorized official for this organization.
What is the NPI number for T.H. Choi, A Medical Corporation?
The NPI for T.H. Choi, A Medical Corporation is 1295758639, 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 2025-06-30.