Conor Patrick O'Halloran

Primary specialty

Pediatric Cardiology PhysicianTaxonomy code 2080P0202X

License

036148582 Issued in IL

Practice address

225 E Chicago Ave
Chicago, IL 60611-2991

Phone

(800) 543-7362

NPI assigned

Mar 22, 2016

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

Enrolled in IL

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.

Enrollment records 1

Specialty

Cardiovascular Disease (Cardiology)Also: Pediatric Medicine

Education

University of Wisconsin School of Medicine, 2016

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Lurie Children'S Medical Group Inc

  • Pediatrics Physician
  • Chicago, IL
  • NPI 1518064716
  Medicare reassignment
• Lurie Children'S Medical Group, LLC

  • Pediatrics Physician
  • Chicago, IL
  • NPI 1992758544
  NPD (past)

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

{
    "created_epoch": "1458604800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785888000000",
    "number": "1265894141",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "225 E CHICAGO AVE",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606112991",
            "telephone_number": "800-543-7362"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "225 E CHICAGO AVE",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606112991",
            "telephone_number": "800-543-7362"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2515 N Clark St",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606142730",
            "country_code": "US",
            "telephone_number": "312-227-4100",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "251 E Huron St",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606112908",
            "country_code": "US",
            "telephone_number": "312-227-4100",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1620 W Harrison St",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606123801",
            "country_code": "US",
            "telephone_number": "312-227-4000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "O'HALLORAN",
        "first_name": "CONOR",
        "middle_name": "PATRICK",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-03-22",
        "last_updated": "2026-08-05",
        "certification_date": "2026-08-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080P0202X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Cardiology",
            "state": "IL",
            "license": "036148582",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Katelyn O'Grady, MD
• Megan O'Grady
• Sean Michael O'Grady, DMD
• Hannah Rose O'Hagan, MD
• Kelsey Elizabeth O'Hagan, MD
• Laura E O'Halloran, PA-C
• Alison O'Hara, PSYD
• Jessie Marie O'Hara
• Madeline O'Hara
• Meaghan O'Hara

• 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 Aug 5, 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.