Greenwich Medical Group

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

BV5838959 Issued in CT

Legal business name

GREENWICH MEDICAL GROUP

Practice address

75 Holly Hill LN
Greenwich, CT 06830-6098

Phone

(203) 869-6960

Fax

(203) 869-5103

NPI assigned

Oct 9, 2006

Organization subpart

No

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

Authorized official

Name

Dr. Gail M Fennell, M.D.

Title

Managing Partner

Phone

(203) 869-6960

Specialties & licenses 7

Addresses

Other identifiers 1

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

{
    "created_epoch": "1160352000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1757548800000",
    "number": "1881781029",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "75 HOLLY HILL LN",
            "city": "GREENWICH",
            "state": "CT",
            "postal_code": "068306098",
            "telephone_number": "203-869-6960",
            "fax_number": "203-869-5103"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "75 HOLLY HILL LN",
            "city": "GREENWICH",
            "state": "CT",
            "postal_code": "068306098",
            "telephone_number": "203-869-6960",
            "fax_number": "203-869-5103"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "GREENWICH MEDICAL GROUP",
        "organizational_subpart": "NO",
        "enumeration_date": "2006-10-09",
        "last_updated": "2025-09-11",
        "status": "A",
        "authorized_official_last_name": "FENNELL",
        "authorized_official_first_name": "GAIL",
        "authorized_official_middle_name": "M",
        "authorized_official_title_or_position": "MANAGING PARTNER",
        "authorized_official_telephone_number": "203-869-6960",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "M.D."
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine",
            "state": "CT",
            "license": "AS8735308",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine",
            "state": "CT",
            "license": "BL9582493",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine",
            "state": "CT",
            "license": "AA2470348",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine",
            "state": "CT",
            "license": "BF4323503",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine",
            "state": "CT",
            "license": "BV5838959",
            "primary": true
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "CT",
            "license": "BN3275369",
            "primary": false
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "CT",
            "license": "AM6000715",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00439394R",
            "state": "CT"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Greenwich Hospital
• Greenwich Hospital
• Greenwich Hospital
• Greenwich Lactation Services LLC
• Greenwich Medical Associates, P.C.
• Greenwich Neonatology Associates, LLC
• Greenwich Neurology
• Greenwich Neurosurgery, P.C.
• Greenwich Occupational Health Services, P.C.
• Greenwich Ophthalmology Assoc

• Internal Medicine Physician in Greenwich, CT
• Providers in Greenwich, CT by specialty
• Internal Medicine Physician in Connecticut

• 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.