Charles A. Thorsen III, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

Practice address

909 Davis St
Evanston, IL 60201-3664

Phone

(847) 866-3700

Fax

(847) 866-3746

NPI assigned

Dec 28, 2005

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

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": "1135728000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1578540985",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "909 DAVIS ST",
            "city": "EVANSTON",
            "state": "IL",
            "postal_code": "602013664",
            "telephone_number": "847-866-3700",
            "fax_number": "847-866-3746"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "909 DAVIS ST",
            "city": "EVANSTON",
            "state": "IL",
            "postal_code": "602013664",
            "telephone_number": "847-866-3700",
            "fax_number": "847-866-3746"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "THORSEN",
        "first_name": "CHARLES",
        "middle_name": "A.",
        "name_prefix": "Dr.",
        "name_suffix": "III",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-12-28",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Susan Thompson, MA,LCPC,ATR
• Jordon W. Thomsen, PA-C
• Michaela Renae Thomson, MD
• Richard B Thomson, PHD
• Steven Thorpe, LCPC
• Three Crowns Park
• Three Crowns Park
• Thrive-Mha
• Mary C Thuermer, L. AC
• Xin Tian

• Internal Medicine Physician in Evanston, IL
• Providers in Evanston, IL by specialty
• Internal Medicine Physician in Illinois

• 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.