James Joseph Harper, M.D.

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

LL 29029 Issued in SC

Practice address

791 Summit Ave
Oconomowoc, WI 53066-3844

Phone

(262) 569-0251

NPI assigned

Mar 16, 2007

Last updated

Nov 20, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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

{
    "created_epoch": "1174003200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763596800000",
    "number": "1922132364",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "791 SUMMIT AVE",
            "city": "OCONOMOWOC",
            "state": "WI",
            "postal_code": "530663844",
            "telephone_number": "262-569-0251"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "791 SUMMIT AVE",
            "city": "OCONOMOWOC",
            "state": "WI",
            "postal_code": "530663844",
            "telephone_number": "262-569-0251"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HARPER",
        "first_name": "JAMES",
        "middle_name": "JOSEPH",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-03-16",
        "last_updated": "2025-11-20",
        "certification_date": "2025-11-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "SC",
            "license": "LL 29029",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Emergency Medicine Physician in Oconomowoc, WI
• Providers in Oconomowoc, WI by specialty
• Emergency Medicine Physician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 20, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.