Patrick O'Carroll, CRNA

Primary specialty

Registered NurseTaxonomy code 163W00000X

License

041.491454 Issued in IL

Practice address

836 W Wellington Ave
Chicago, IL 60657-5147

Phone

(773) 318-3610

NPI assigned

Sep 21, 2026

Last updated

Sep 21, 2026By the provider in NPPES

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

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

{
    "created_epoch": "1789948800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789948800000",
    "number": "1447162953",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "836 W WELLINGTON AVE",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606575147"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "836 W WELLINGTON AVE",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606575147",
            "telephone_number": "773-318-3610"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'CARROLL",
        "first_name": "PATRICK",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2026-09-21",
        "last_updated": "2026-09-21",
        "certification_date": "2026-09-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "IL",
            "license": "041.491454",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Stephanie Ellen O'Brien, CPNP
• Stephanie Mae O'Brien, FNP-C
• Teresa M O'Brien, NP-C
• Timothy J O'Brien, PSYD
• Margaret Rose O'Callaghan, NURSE PRACTITIONER
• Allison O'Connell
• Bridgid O'Connell, LCSW
• David O'Connell, MD
• Jennifer O'Connell, LCSW
• Jessica Stowe O'Connell, M.D.

• Registered Nurse in Chicago, IL
• Providers in Chicago, IL by specialty
• Registered Nurse in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 21, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.

Verify at the official NPI Registry.