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Dr. Hoon-Ji Helen Choi, MD

Endocrinology, Diabetes & Metabolism Physician in Los Alamitos, CA · enumerated 2006.

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

National Provider Identifier

1225062888

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Registry record

Entity type Individual (Type 1)
Name Dr. Hoon-Ji Helen Choi
Credential MD
Sex Female
Practice address 3772 Katella Ave Ste 107, Los Alamitos, CA, 90720
Phone (562) 431-7877
Fax (562) 431-7882
Enumeration date Jul 10, 2006
Last updated in NPPES Mar 11, 2023

Taxonomy & licenses

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License A70132 (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

What is the NPI number for Hoon-Ji Choi?
The National Provider Identifier (NPI) for Hoon-Ji Choi is 1225062888, a Type 1 (individual) record in the CMS NPPES registry.
Where does Hoon-Ji Choi practice?
The practice location on file with NPPES is in Los Alamitos, CA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-11.