Active NPI
Kristen Nelson McMillan, M.D.
- Pediatric Critical Care Medicine Physician
- Oak Lawn, IL
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Pediatric Critical Care Medicine Physician
- License
- 036-150029
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| 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, IL
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 036-150029 | IL | MD | Pediatric Critical Care Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Johns Hopkins University | Current | Accepting new patients | |
| University of Chicago | Current | Accepting new patients | |
| The University of Chicago Medical Center | Current | Accepting new patients | |
| Advocate Health and Hospitals Corporation | Current | Accepting new patients | |
| Advocate Health and Hospitals Corporation | Current | Accepting new patients | |
| Johns Hopkins University | Current | Accepting new patients | |
| The University of Chicago Medical Center | Current | 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
- 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.
-
dba Advocate Medical Group
- Multi-Specialty Clinic/Center
- Oak Brook, IL
- NPI 1700824455
-
- General Acute Care Hospital
- Chicago, IL
- NPI 1033218128
-
- Multi-Specialty Clinic/Center
- Chicago, IL
- NPI 1821048786
-
dba Jhu - Anesthesia Pain MGMT
- Pain Medicine (Anesthesiology) Physician
- Baltimore, MD
- NPI 1922008549
-
dba Advocate Children's Hospital
- Children's Hospital
- Oak Lawn, IL
- NPI 1508315516
-
dba UCMC Pharmacy Services
- Community/Retail Pharmacy
- Calumet City, IL
- NPI 1255895678
-
dba JHU - 4692 Millennium Drive - Physician
- Ophthalmology Physician
- Belcamp, MD
- NPI 1376342774
-
dba Jhu - ICU Associates
- Critical Care Medicine (Anesthesiology) Physician
- Baltimore, MD
- NPI 1881694453
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 24, 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.