Guhan Arumugam Shanmugasundaram, M.B.B.S.

Primary specialty

Radiation Oncology PhysicianTaxonomy code 2085R0001X

License

125086481 Issued in IL

Practice address

840 South Wood Street
Room 402, Clinical Sciences Building, Mail Code 958
Chicago, IL 60612

Phone

(312) 355-0104

Fax

(312) 413-3483

NPI assigned

May 19, 2025

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

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

State licenses

Interoperability endpoints

• Direct secure messaging: garumugamshanmugasundaram191327@uihealth.direct-ci.com

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

{
    "created_epoch": "1747612800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786060800000",
    "number": "1023800943",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "840 SOUTH WOOD STREET",
            "address_2": "ROOM 402, CLINICAL SCIENCES BUILDING, MAIL CODE 958",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "60612",
            "telephone_number": "312-355-0104",
            "fax_number": "312-413-3483"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "840 SOUTH WOOD STREET",
            "address_2": "ROOM 402, CLINICAL SCIENCES BUILDING, MAIL CODE 958",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "60612",
            "telephone_number": "312-355-0104",
            "fax_number": "312-413-3483"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ARUMUGAM SHANMUGASUNDARAM",
        "first_name": "GUHAN",
        "name_prefix": "Mr.",
        "credential": "M.B.B.S.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2025-05-19",
        "last_updated": "2026-08-07",
        "certification_date": "2026-08-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "IL",
            "license": "125086481",
            "primary": false
        },
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "IL",
            "license": "125086481",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Maria Alexandra Artunduaga, M.D.
• Michele Artunduaga, LCPC
• Arty.Inc
• Jane-Frances Chiemezie Aruma
• Ajay Arumanayagam Selvaraj
• Mohanapriya Arumugam, MD
• Veena V Arun, MD
• Aruna H Patel
• Ambalavanan Arunachalam, M.D
• Ponni Arunkumar, MD

• Radiation Oncology Physician in Chicago, IL
• Providers in Chicago, IL by specialty
• Radiation Oncology Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 7, 2026; 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.