T.H. Choi, a Medical Corporation

Primary specialty

Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X

Legal business name

T.H. CHOI, A MEDICAL CORPORATION

Practice address

3772 Katella Ave Ste 107
Los Alamitos, CA 90720-6424

Phone

(562) 431-7877

Fax

(562) 431-7882

NPI assigned

Jul 26, 2006

Last updated

Jun 30, 2025By 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

Hoon-Ji Helen Choi, MDNPI 1225062888

Title

Owner

Phone

(562) 881-3922

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in CA

Enrollment records 1

Tax ID family

T H Choi a Medical Corp2 organizations share this tax ID, including this one

Other organizations with this tax ID 1

Organizations that report the same tax identification number in the National Provider Directory.

• T.H. Choi, a Medical Corp.

  • Endocrinology, Diabetes & Metabolism Physician
  • Los Alamitos, CA
  • NPI 1215051446
  NPD tax ID

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.

• Hoon-Ji Helen Choi, MD

  • Endocrinology, Diabetes & Metabolism Physician
  • Los Alamitos, CA
  • NPI 1225062888
  Medicare reassignment NPD Authorized official
• Tony G Choi, MD

  • Emergency Medicine Physician
  • Santa Ana, CA
  • NPI 1457388308
  Medicare reassignment NPD (past)

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

{
    "created_epoch": "1153872000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1751241600000",
    "number": "1295758639",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7862 SQUAW VALLEY WAY",
            "city": "CERRITOS",
            "state": "CA",
            "postal_code": "907037843",
            "telephone_number": "562-881-3922",
            "fax_number": "425-928-4044"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3772 KATELLA AVE STE 107",
            "city": "LOS ALAMITOS",
            "state": "CA",
            "postal_code": "907206424",
            "telephone_number": "562-431-7877",
            "fax_number": "562-431-7882"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "T.H. CHOI, A MEDICAL CORPORATION",
        "organizational_subpart": "NO",
        "enumeration_date": "2006-07-26",
        "last_updated": "2025-06-30",
        "certification_date": "2025-06-30",
        "status": "A",
        "authorized_official_last_name": "CHOI",
        "authorized_official_first_name": "HOON-JI",
        "authorized_official_middle_name": "HELEN",
        "authorized_official_title_or_position": "OWNER",
        "authorized_official_telephone_number": "562-881-3922",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": null,
            "primary": false
        },
        {
            "code": "207RE0101X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "CA",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sunmed Medical Systems LLC
• Samantha Swift
• Jake Patrick Sylwanowicz, DDS
• T Pandya MD, Inc.
• T.H. Choi, a Medical Corp.
• Michael P. Tabibian, M.D.
• Mohan V. Tadikonda, M.D.
• Shahram Taheri, MD
• Tania Tahsili Fahadan, DMD
• Betty C Tai, PHARMD

• Endocrinology, Diabetes & Metabolism Physician in Los Alamitos, CA
• Providers in Los Alamitos, CA by specialty
• Endocrinology, Diabetes & Metabolism Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 30, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.