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SANG HOON AHN MEDICAL GROUP, INC.
NPI 1720931736
Internal Medicine in Fullerton, CA

Active since February 18, 2026
1950 SUNNY CREST DR STE 2800, FULLERTON, CA 92835(657) 888-9919(657) 888-9941 Get Directions Write a Review

NPPES record last updated: March 12, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Sang Hoon Ahn Medical Group, Inc. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SANG HOON AHN MEDICAL GROUP, INC. (NPI 1720931736), doing business as Ahn Medical, is a healthcare organization registered as an internal medicine in Fullerton, California and active in the NPI registry since February 2026. The organization lists Sang Hoon Ahn, Ceo, as its authorized official.

NPPES Registry Identity

NPI1720931736
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameSANG HOON AHN MEDICAL GROUP, INC.
Location Address1950 SUNNY CREST DR STE 2800Fullerton, CA 92835-3641
Mailing Address1520 Hollydale DrFullerton, CA 92831-1115 · (213) 245-0788
Phone(657) 888-9919
Fax(657) 888-9941
Organization SubpartNo
Authorized OfficialSang Hoon AhnCeo · (213) 245-0788
Enumeration DateFebruary 18, 2026
Last NPPES UpdateMarch 12, 2026
NPPES CertifiedMarch 12, 2026
✔ NPI 1720931736 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1950 SUNNY CREST DR STE 2800, Fullerton, CA 92835
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Other Names 1

Doing Business AsAhn Medical

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SANG HOON AHN M.D.
Internal Medicine
1950 SUNNY CREST DR STE 2800
FULLERTON, CA 92835
Orange County (657) 888-9919
JANE KIM PA-C
Physician Assistant
1950 SUNNY CREST DR STE 2800
FULLERTON, CA 92835
Orange County (657) 888-9919

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sang Hoon Ahn Medical Group, Inc.'s NPI number?

The NPI number for Sang Hoon Ahn Medical Group, Inc. is 1720931736. It was assigned to this organization in the NPPES registry on February 18, 2026. The provider is doing business as Ahn Medical.

Where is Sang Hoon Ahn Medical Group, Inc. located?

Sang Hoon Ahn Medical Group, Inc. is located at 1950 Sunny Crest Dr Ste 2800, Fullerton, CA 92835. The listed phone number is (657) 888-9919.

What is Sang Hoon Ahn Medical Group, Inc.'s specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Sang Hoon Ahn Medical Group, Inc. was last updated on March 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.