Dianne E Gregory, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

4301076331 Issued in MI

Practice address

8235 Holly Rd
Suite 1
Grand Blanc, MI 48439-2441

Phone

(810) 694-9110

Fax

(810) 695-0343

NPI assigned

Jun 7, 2006

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other names 1

• Dianne E Sonefeld Former name

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Doctor of Medicine

State licenses

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

{
    "created_epoch": "1149638400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1497795462",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1085 S LINDEN RD",
            "address_2": "SUITE 150",
            "city": "FLINT",
            "state": "MI",
            "postal_code": "485323421",
            "telephone_number": "810-732-3240",
            "fax_number": "810-230-0280"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8235 HOLLY RD",
            "address_2": "SUITE 1",
            "city": "GRAND BLANC",
            "state": "MI",
            "postal_code": "484392441",
            "telephone_number": "810-694-9110",
            "fax_number": "810-695-0343"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREGORY",
        "first_name": "DIANNE",
        "middle_name": "E",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-06-07",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MI",
            "license": "4301076331",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "DIANNE",
            "last_name": "SONEFELD",
            "middle_name": "E",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

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• Internal Medicine Physician in Grand Blanc, MI
• Providers in Grand Blanc, MI by specialty
• Internal Medicine Physician in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.