NPIMap

Organization Active NPI

Internal Medicine Medical Group

  • Internal Medicine Physician
  • Chino Hills, CA
National Provider Identifier
1679776090
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
Legal business name
INTERNAL MEDICINE MEDICAL GROUP
Practice address
2140 Grand Avenue
Internal Medicine Medical Group Suite 120
Chino Hills, CA 91709-6801
Phone
(909) 623-8796
Fax
(909) 623-3076
NPI assigned
Jun 6, 2007
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

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

Authorized official

Name
Mrs. Adrienne Marie Walker
Title
Contracts Manager
Phone
(909) 398-1550

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207R00000X Primary
Cardiovascular Disease PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207RC0000X
Pulmonary Disease PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207RP1001X

Addresses

Primary practice location

2140 Grand Avenue
Internal Medicine Medical Group Suite 120
Chino Hills, CA 91709-6801

Mailing address

840 Towne Center Drive
Internal Medicine Medical Group
Pomona, CA 91767-5900
Phone (909) 398-1550

National Provider Directory

National Provider Directory
Tax ID family
Internal Medicine Medical Group6 organizations share this tax ID, including this one

Other organizations with this tax ID 5

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

NPI Registry JSON

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

{
    "created_epoch": "1181088000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1757548800000",
    "number": "1679776090",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "840 TOWNE CENTER DRIVE",
            "address_2": "INTERNAL MEDICINE MEDICAL GROUP",
            "city": "POMONA",
            "state": "CA",
            "postal_code": "917675900",
            "telephone_number": "909-398-1550",
            "fax_number": "909-398-1573"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2140 GRAND AVENUE",
            "address_2": "INTERNAL MEDICINE MEDICAL GROUP SUITE 120",
            "city": "CHINO HILLS",
            "state": "CA",
            "postal_code": "917096801",
            "telephone_number": "909-623-8796",
            "fax_number": "909-623-3076"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "INTERNAL MEDICINE MEDICAL GROUP",
        "organizational_subpart": "NO",
        "enumeration_date": "2007-06-06",
        "last_updated": "2025-09-11",
        "status": "A",
        "authorized_official_last_name": "WALKER",
        "authorized_official_first_name": "ADRIENNE",
        "authorized_official_middle_name": "MARIE",
        "authorized_official_title_or_position": "CONTRACTS MANAGER",
        "authorized_official_telephone_number": "909-398-1550",
        "authorized_official_name_prefix": "Mrs."
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Chino Hills, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; 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.