John A Campbell, MD

Primary specialty

Critical Care Medicine (Internal Medicine) PhysicianTaxonomy code 207RC0200X

License

22190 Issued in WI

Practice address

1000 N Oak Ave
Marshfield, WI 54449-5777

Phone

(715) 387-5319

NPI assigned

Sep 23, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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": "1158969600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1225138951",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1000 N OAK AVE",
            "city": "MARSHFIELD",
            "state": "WI",
            "postal_code": "544495777"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1000 N OAK AVE",
            "city": "MARSHFIELD",
            "state": "WI",
            "postal_code": "544495777",
            "telephone_number": "715-387-5319"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CAMPBELL",
        "first_name": "JOHN",
        "middle_name": "A",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-09-23",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "WI",
            "license": "22190",
            "primary": true
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "WI",
            "license": "22190",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "30262600",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Robert Anthony Cagle, M.D.
• Thomas L Cain, MD
• Michael D. Caldwell, MD
• Eric B Callaghan, MD
• H Thomas Campbell, MD
• L Rebecca Campbell, MD
• Karen Ann Caputo, CRNP
• Carole A Carlson, CADCIII, MS, CCSII
• Kathryn M Carlson, OTR/L
• Brett B Carmichael, MD

• Critical Care Medicine (Internal Medicine) Physician in Marshfield, WI
• Providers in Marshfield, WI by specialty
• Critical Care Medicine (Internal Medicine) Physician in Wisconsin

• 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.