Individual provider Active NPI

Kristen Nelson McMillan, M.D.

  • Pediatric Critical Care Medicine Physician
  • Oak Lawn, IL
National Provider Identifier
1992842454
Registry record updated Feb 24, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatric Critical Care Medicine PhysicianTaxonomy code 2080P0203X
License
036-150029 Issued in IL
Practice address
4440 W 95TH St
Oak Lawn, IL 60453-2600
Phone
(708) 684-5580
NPI assigned
Jan 31, 2007
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 24, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatric Critical Care Medicine Physician 2080P0203X D64882 MD
Pediatrics Physician 208000000X D64882 MD
Pediatric Critical Care Medicine Physician 2080P0203X 036-150029 IL Primary

Addresses

Primary practice location

4440 W 95TH St
Oak Lawn, IL 60453-2600

Mailing address

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

Electronic endpoints 3

TypeEndpointUseAffiliation
Direct Messaging Address knelsonmcmillan231309@direct.myadvocateaurora.org Direct
FHIR URL https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/
CONNECT URL https://esmd.abilitynetwork.com:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRRequest_Service Other ABILITY Network

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MD, IL2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20071221000431 MD Practitioner - Critical Care (Intensivists)Practitioner - Pediatric Medicine 2961592332 Reassigns benefits to 1 organization
I20190918002820 IL Practitioner - Pediatric MedicinePractitioner - Critical Care (Intensivists) 2961592332 Reassigns benefits to 3 organizations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
036-150029ILMDPediatric Critical Care Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Johns Hopkins University CurrentSince Sep 17, 2011 Accepting new patients
University of Chicago CurrentSince Jul 31, 2019 Accepting new patients
The University of Chicago Medical Center CurrentSince Jul 31, 2019 Accepting new patients
Advocate Health and Hospitals Corporation CurrentSince Aug 11, 2019 Accepting new patients
Advocate Health and Hospitals Corporation CurrentSince Aug 11, 2019 Accepting new patients
Johns Hopkins University CurrentSince Sep 17, 2011 Accepting new patients
The University of Chicago Medical Center CurrentSince Jul 31, 2019 Accepting new patients
Johns Hopkins University Current Accepting new patients

Locations

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

150 Harvester Dr
Ste 300
Burr Ridge, IL 60527
Phone (773) 702-1061

29373 Network Pl
Chicago, IL 60673

350 N Wall St
Kankakee, IL 60901
Phone (815) 935-7500

120 N Oak St
Oak Brook Mall, IL 60521
Phone (630) 856-6700

4440 W 95th St
Oak Lawn, IL 60453
Phone (708) 346-5520

600 N Wolfe St
Baltimore, MD 21287

600 N Wolfe St
#904
Baltimore, MD 21287
Phone (410) 614-6222

Interoperability endpoints

  • Direct secure messaging: knelsonmcmillan231309@direct.myadvocateaurora.org

Organizations & group practices 8

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.

NPI Registry JSON

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

{
    "created_epoch": "1170201600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771891200000",
    "number": "1992842454",
    "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": "4440 W 95TH ST",
            "city": "OAK LAWN",
            "state": "IL",
            "postal_code": "604532600",
            "telephone_number": "708-684-5580"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MCMILLAN",
        "first_name": "KRISTEN",
        "middle_name": "NELSON",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-01-31",
        "last_updated": "2026-02-24",
        "certification_date": "2026-02-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080P0203X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Critical Care Medicine",
            "state": "MD",
            "license": "D64882",
            "primary": false
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MD",
            "license": "D64882",
            "primary": false
        },
        {
            "code": "2080P0203X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Critical Care Medicine",
            "state": "IL",
            "license": "036-150029",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "knelsonmcmillan231309@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "4440 W 95th St",
            "city": "Oak Lawn",
            "state": "IL",
            "country_code": "US",
            "postal_code": "604532600",
            "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": "4440 W 95th St",
            "city": "Oak Lawn",
            "state": "IL",
            "country_code": "US",
            "postal_code": "604532600",
            "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"
        }
    ],
    "other_names": []
}

Other providers in Oak Lawn, IL

Sources for this page

Verify at the official NPI Registry.