Catherine Elise Duffy, MD

Primary specialty

Pediatric Cardiology PhysicianTaxonomy code 2080P0202X

Practice address

2300 Childrens Plaza
Box 21 Childrens Memorial Hospital
Chicago, IL 60614-3363

Phone

(773) 880-4553

Fax

(773) 880-8111

NPI assigned

Mar 9, 2006

Last updated

Jul 13, 2026By the provider in NPPES

Sex

Female

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

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

{
    "created_epoch": "1141862400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1215905922",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2300 CHILDRENS PLAZA",
            "address_2": "BOX 21 CHILDRENS MEMORIAL HOSPITAL",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606143363",
            "telephone_number": "773-880-4553",
            "fax_number": "773-880-8111"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2300 CHILDRENS PLAZA",
            "address_2": "BOX 21 CHILDRENS MEMORIAL HOSPITAL",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606143363",
            "telephone_number": "773-880-4553",
            "fax_number": "773-880-8111"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DUFFY",
        "first_name": "CATHERINE",
        "middle_name": "ELISE",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-03-09",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080P0202X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Cardiology",
            "state": "IL",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Madeline C Duffner, PA-C
• Christine Duffy Levy, LCSW
• Allison Jane Duffy
• Anna Morrisa Duffy, PA-C
• Anne Elizabeth Duffy, MOT, OTR/L
• Dorothy Grace Duffy
• John Edward Duffy
• Laura Kathleen Duffy, APN
• Lauren Duffy
• Margot Duffy

• Pediatric Cardiology Physician in Chicago, IL
• Providers in Chicago, IL by specialty
• Pediatric Cardiology 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.