Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Sang Hoon Ahn Medical Group, Inc

Organization Internal Medicine Physician · NPI 1720931736

Sang Hoon Ahn Medical Group, Inc is an Internal Medicine Physician in Fullerton, California. Registered with an NPI since 2026.

In the registry since
2026
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

1950 Sunny Crest Dr Ste 2800
Fullerton, CA 92835-3641
Phone: (657) 888-9919
Fax: (657) 888-9941
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X

Record details

NPI number1720931736
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Sang Hoon Ahn — Ceo · (213) 245-0788
Other names Ahn Medical
NPI enumeratedFebruary 18, 2026
Last updated in NPPESMarch 12, 2026
Certification dateMarch 12, 2026
Mailing address1520 Hollydale Dr, Fullerton, CA 92831-1115

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