Thomas G Ahn M D a Prof Corp

Primary specialty

Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X

Legal business name

THOMAS G AHN M D A PROF CORP

Practice address

2080 Century Park E
Suite 1410
Los Angeles, CA 90067-2001

Phone

(310) 277-7600

Fax

(310) 553-9103

NPI assigned

Mar 22, 2007

Organization subpart

No

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

Authorized official

Name

Thomas G Ahn, MDNPI 1669556866

Title

Owner

Phone

(310) 277-7600

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in CA

Enrollment records 1

Locations

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• Thomas G Ahn, MD

  • Internal Medicine Physician
  • Los Angeles, CA
  • NPI 1669556866
  Medicare reassignment Authorized official

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

{
    "created_epoch": "1174521600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1766966400000",
    "number": "1982720728",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2080 CENTURY PARK E",
            "address_2": "SUITE 1410",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900672001",
            "telephone_number": "310-277-7600",
            "fax_number": "310-553-9103"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2080 CENTURY PARK E",
            "address_2": "SUITE 1410",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900672001",
            "telephone_number": "310-277-7600",
            "fax_number": "310-553-9103"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "THOMAS G AHN M D A PROF CORP",
        "organizational_subpart": "NO",
        "enumeration_date": "2007-03-22",
        "last_updated": "2025-12-29",
        "certification_date": "2025-12-29",
        "status": "A",
        "authorized_official_last_name": "AHN",
        "authorized_official_first_name": "THOMAS",
        "authorized_official_middle_name": "G",
        "authorized_official_title_or_position": "OWNER",
        "authorized_official_telephone_number": "310-277-7600",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207RE0101X",
            "taxonomy_group": "193400000X MULTIPLE SINGLE SPECIALTY GROUP",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Rebecca Lynn Thomann, P.T.
• Gloria Cecilia Thomas Allen
• Janet Thomas Bond, NP
• Thomas C Apostle DO PC
• Thomas D Lim DPM Inc
• Thomas H Kanegae M D a Medical Corporation
• Thomas H. Kanegae M.D. AMC
• Thomas J Cachur Jr D O a Professional Medical Corporation
• Thomas J Gerke MD Inc
• Thomas John Carpenter Jr MD Inc a Medical Corporation

• Endocrinology, Diabetes & Metabolism Physician in Los Angeles, CA
• Providers in Los Angeles, 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 Dec 29, 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.