Karl F Szewczyk, MD

Primary specialty

Pediatric Critical Care Medicine PhysicianTaxonomy code 2080P0203X

License

28289 Issued in WI

Practice address

707 S Mills St
Madison, WI 53715-1849

Phone

(608) 251-6100

Fax

(608) 826-2710

NPI assigned

Mar 27, 2006

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

Other identifiers 1

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": "1143417600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1225098676",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "707 S MILLS ST",
            "city": "MADISON",
            "state": "WI",
            "postal_code": "537151849",
            "telephone_number": "608-251-6100",
            "fax_number": "608-826-2710"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "707 S MILLS ST",
            "city": "MADISON",
            "state": "WI",
            "postal_code": "537151849",
            "telephone_number": "608-251-6100",
            "fax_number": "608-826-2710"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SZEWCZYK",
        "first_name": "KARL",
        "middle_name": "F",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-03-27",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080P0203X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Critical Care Medicine",
            "state": "WI",
            "license": "28289",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "31615800",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Barbara M Szachnowska, MD
• Matthew A Szadkowski, M.D.
• Nicholas Paul Szczech
• Madalynn Szejna
• Amanda A Szelc, PT
• Carolyn Maria Szigethy, PHARMD, RD, CNSD
• Steven J Szlembarski, DO
• Annie Jean Szmanda, DO
• Eva Bronwyn Szocik
• Molly J Szotkowski

• Pediatric Critical Care Medicine Physician in Madison, WI
• Providers in Madison, WI by specialty
• Pediatric Critical Care Medicine Physician in Wisconsin

• 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.