Sang Hoon Ahn Medical Group, Inc.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

Legal business name

SANG HOON AHN MEDICAL GROUP, INC.

Doing business as

Ahn Medical

Practice address

1950 Sunny Crest Dr Ste 2800
Fullerton, CA 92835-3641

Phone

(657) 888-9919

Fax

(657) 888-9941

NPI assigned

Feb 18, 2026

Last updated

Mar 12, 2026By the provider in NPPES

Organization subpart

No

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name

Dr. Sang Hoon Ahn, MD, MPHNPI 1568581759

Title

Ceo

Phone

(213) 245-0788

Specialties & licenses 1

Addresses

Other names 1

• AHN MEDICAL Doing business as

Locations

Practitioners 2

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

• Sang Hoon Ahn, M.D.

  • Internal Medicine Physician
  • Fullerton, CA
  • NPI 1568581759
  NPD Authorized official
• Jane Kim, PA-C

  • Physician Assistant
  • Fullerton, CA
  • NPI 1881320638
  NPD

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1771372800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1773273600000",
    "number": "1720931736",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1520 HOLLYDALE DR",
            "city": "FULLERTON",
            "state": "CA",
            "postal_code": "928311115",
            "telephone_number": "213-245-0788"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1950 SUNNY CREST DR STE 2800",
            "city": "FULLERTON",
            "state": "CA",
            "postal_code": "928353641",
            "telephone_number": "657-888-9919",
            "fax_number": "657-888-9941"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "SANG HOON AHN MEDICAL GROUP, INC.",
        "organizational_subpart": "NO",
        "enumeration_date": "2026-02-18",
        "last_updated": "2026-03-12",
        "certification_date": "2026-03-12",
        "status": "A",
        "authorized_official_last_name": "AHN",
        "authorized_official_first_name": "SANG HOON",
        "authorized_official_title_or_position": "CEO",
        "authorized_official_telephone_number": "213-245-0788",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "MD, MPH"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "AHN MEDICAL",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

• Rocio Sandoval
• Rosalie Sandoval
• Shawn Sandoval
• Mia Sands
• Katherine Saner
• Nivie Sanghera-Jhawar, D.O.
• Susan Sansour, LMFT 45412
• Eryn Ashlee Santa Ana, OTR/L
• Santa Catalina Healthcare, Inc. (St. Catherine Healthcare)
• Marisa Rose Santiago, PT, DPT

• Internal Medicine Physician in Fullerton, CA
• Providers in Fullerton, CA by specialty
• Internal Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 12, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.