Heather A Keldahl, CRNA

Primary specialty

Certified Registered Nurse AnesthetistTaxonomy code 367500000X

License

209-008545 Issued in IL

Practice address

836 W Wellington Ave
Chicago, IL 60657-5147

Phone

(773) 795-1600

NPI assigned

Mar 3, 2011

Sex

Female

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Electronic endpoints 4

Medicare fee-for-service enrollment

Enrolled in IL

Enrollment records 1

Specialty

Certified Registered Nurse Anesthetist (Crna)

Education

Rush Medical College of Rush University, 2010

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Advocate Health and Hospitals CorporationGroup PAC ID 7810800935, 3,081 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

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

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: hkeldahl336774@direct.myadvocateaurora.org

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.

• Advocate Health and Hospitals Corporation

  • Multi-Specialty Clinic/Center
  • Oak Brook, IL
  • NPI 1700824455
  Medicare reassignment Care Compare group NPD
• Advocate Health and Hospitals Corporation

  • Children's Hospital
  • Oak Lawn, IL
  • NPI 1508315516
  NPD
• University Anesthesiologists SC

  • Anesthesiology Physician
  • Chicago, IL
  • NPI 1073558136

  Nurse Anesthetist, Certified Registered

  NPD (past)
• University Anesthesiologists SC

  • Certified Registered Nurse Anesthetist
  • Chicago, IL
  • NPI 1104202480

  Nurse Anesthetist, Certified Registered

  NPD (past)

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

• Advocate North Side Health Network

  • General Acute Care Hospital
  • Chicago, IL
  • NPI 1912014564
  Care Compare affiliation

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

{
    "created_epoch": "1299110400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781136000000",
    "number": "1013215714",
    "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": "773-795-1600"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1653 W Congress Pkwy",
            "address_2": "Jelke 739",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606123833",
            "country_code": "US",
            "telephone_number": "312-942-6504",
            "fax_number": "312-942-5773",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "3134 N Clark St",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606574414",
            "country_code": "US",
            "telephone_number": "312-766-4949",
            "fax_number": "312-766-4908",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KELDAHL",
        "first_name": "HEATHER",
        "middle_name": "A",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2011-03-03",
        "last_updated": "2026-06-11",
        "certification_date": "2026-06-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "IL",
            "license": "209008545041346941",
            "primary": false
        },
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "IL",
            "license": "209-008545",
            "primary": true
        },
        {
            "code": "364S00000X",
            "taxonomy_group": "",
            "desc": "Clinical Nurse Specialist",
            "state": "IL",
            "license": "209-008545",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "hkeldahl336774@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": "CONNECT",
            "endpointTypeDescription": "CONNECT URL",
            "endpoint": "https://esmd.abilitynetwork.com:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRRequest_Service",
            "affiliation": "Y",
            "endpointDescription": "2.16.840.1.113883.3.667.2",
            "affiliationName": "ABILITY Network",
            "use": "OTHER",
            "useDescription": "Other",
            "useOtherDescription": "CMS esMD eMDR",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "64 S Price Rd Ste B",
            "city": "Brownsville",
            "state": "TX",
            "country_code": "US",
            "postal_code": "785212459",
            "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": "3134 N Clark St",
            "city": "Chicago",
            "state": "IL",
            "country_code": "US",
            "postal_code": "606574414",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "hkeldahl336774@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "3134 N Clark St",
            "city": "Chicago",
            "state": "IL",
            "country_code": "US",
            "postal_code": "606574414",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Leslie Keith, LPC
• William Keith
• Laura Kek
• Joseph Kofi Selase Kekrebesi, MD, MPH
• Linda Caroline Kelahan, MD
• Mark Loren Keldahl, MD
• Madison Keleher, LCSW
• Shannon Keleher
• Anita Hiren Kelekar, M.D.
• Armen Kelikian, MD

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

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 11, 2026; 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.