Individual provider Active NPI

Theresa Keegan, CRNA

  • Certified Registered Nurse Anesthetist
  • Chicago, IL
National Provider Identifier
1619797537
Registry record updated Jun 26, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
209030629 Issued in IL
Practice address
836 W Wellington Ave
Chicago, IL 60657-5147
Phone
(773) 296-0595
Fax
(773) 296-0548
NPI assigned
Oct 15, 2024
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 26, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Certified Registered Nurse Anesthetist 367500000X 209030629 IL Primary

Addresses

Primary practice location

836 W Wellington Ave
Chicago, IL 60657-5147

Mailing address

29373 Network PL
Chicago, IL 60673-1293
Phone (847) 390-5900

Other practice location 1

1878 Mayo Dr
Tavares, FL 32778-4320
Phone (352) 508-5401

Electronic endpoints 2

TypeEndpointUseAffiliation
Direct Messaging Address tkeegan428871@direct.myadvocateaurora.org Direct
FHIR URL https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250114002216 IL Practitioner - Certified Registered Nurse Anesthetist (Crna) 7618405960 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Certified Registered Nurse Anesthetist (Crna)
Education
Other, 2024
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
North American Partners in Anesthesia Illinois LLCGroup PAC ID 1052576519, 431 clinicians
University Anesthesiologists SCGroup PAC ID 4183512080, 152 clinicians

Practice addresses (Care Compare)

1520 W Harrison St
Chicago, IL 60607-3106
Phone (888) 352-7874

845 N Michigan Ave
Suite 985W
Chicago, IL 60611-2218
Phone (312) 521-5500

Hospital & facility affiliations

  • Advocate Illinois Masonic Medical Center Hospital, Chicago, IL, CCN 140182

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
209030629ILMDCertified Registered Nurse Anesthetist

Practice roles

OrganizationSpecialtyStatusNew patients
North American Partners in Anesthesia (Illinois), LLC CurrentSince Feb 3, 2025 Accepting new patients
Advocate Health and Hospitals Corporation Current Accepting new patients
University Anesthesiologists SC Nurse Anesthetist, Certified Registered CurrentSince Nov 22, 2024 Accepting new patients

Locations

3249 Oak Park Ave
Berwyn, IL 60402
Phone (708) 783-2696

214 McHenry Rd
Buffalo Grove, IL 60089
Phone (847) 459-1160

1653 W Congress Pkwy
Chicago, IL 60612
Phone (312) 942-3138

836 W Wellington Ave
Chicago, IL 60657
Phone (773) 296-7054

845 N Michigan Ave
Ste 985W
Chicago, IL 60611
Phone (312) 521-5500

1520 W Harrison St
Chicago, IL 60607
Phone (312) 226-2371

1725 W Harrison St
Ste 556
Chicago, IL 60612
Phone (312) 563-2880

29373 Network Pl
Chicago, IL 60673

Interoperability endpoints

  • Direct secure messaging: tkeegan428871@direct.myadvocateaurora.org

Organizations & group practices 3

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.

Hospital & facility affiliations 1

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1728950400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750896000000",
    "number": "1619797537",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "29373 NETWORK PL",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606731293",
            "telephone_number": "847-390-5900"
        },
        {
            "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": "773-296-0595",
            "fax_number": "773-296-0548"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1878 Mayo Dr",
            "address_purpose": "LOCATION",
            "city": "Tavares",
            "state": "FL",
            "postal_code": "327784320",
            "country_code": "US",
            "telephone_number": "352-508-5401",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KEEGAN",
        "first_name": "THERESA",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2024-10-15",
        "last_updated": "2025-06-26",
        "certification_date": "2025-06-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "IL",
            "license": "209030629",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "tkeegan428871@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "836 W Wellington Ave",
            "city": "Chicago",
            "state": "IL",
            "country_code": "US",
            "postal_code": "606575147",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "836 W Wellington Ave",
            "city": "Chicago",
            "state": "IL",
            "country_code": "US",
            "postal_code": "606575147",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Chicago, IL

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 26, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • 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.