Active NPI
Nathalie Antonios, MD
- Pulmonary Disease Physician
- Chicago, IL
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Pulmonary Disease Physician
- License
- 036156686
- Practice address
- 5841 S Maryland Ave
Chicago, IL 60637-1443 - Phone
- (773) 702-1000
- NPI assigned
- Mar 28, 2018
- 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 |
|---|---|---|---|---|
| Critical Care Medicine (Internal Medicine) Physician | 207RC0200X | 036156686 | IL | |
| Pulmonary Disease Physician | 207RP1001X | 036156686 | IL | Primary |
| Hospitalist Physician | 208M00000X | 036156686 | IL |
Addresses
Primary practice location
5841 S Maryland Ave
Chicago, IL 60637-1443
Mailing address
150 Harvester Dr Ste 300
Burr Ridge, IL 60527-5965
Phone (773) 702-1150
Other practice location 1
1000 N Westmoreland Rd
Lake Forest, IL 60045-1658
Phone (847) 234-5600
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in IL
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Pulmonary Disease
- Education
- Other, 2018
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
5841 S Maryland Ave
Chicago, IL 60637-1443
Phone (773) 702-1000
Hospital & facility affiliations
- The University of Chicago Medical Center
Merit-based Incentive Payment System (MIPS)
- Final score
- 95.19 of 100
- Quality
- 83.05
- Promoting interoperability
- 100
- Improvement activities
- 40
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 036156686 | IL | MD | Hospitalist Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| University of Chicago | Current | Accepting new patients | |
| Northwestern Medical Faculty Foundation | Current | Accepting new patients | |
| Northwestern Medical Faculty Foundation | Current | Accepting new patients | |
| The University of Chicago Medical Center | Current | Accepting new patients | |
| The University of Chicago Medical Center | Current | Accepting new patients | |
| Gibson Community Hospital Association | Past | Accepting new patients |
Locations
150 Harvester Dr
Ste 300
Burr Ridge, IL 60527
Phone (773) 702-1061
Dept 5777
Carol Stream, IL 60122
5758 S Maryland Ave
Chicago, IL 60637
Phone (773) 702-1865
500 W Court St
Kankakee, IL 60901
Phone (800) 585-4119
660 N Westmoreland Rd
#302
Lake Forest, IL 60045
1000 N Westmoreland Rd
Lake Forest, IL 60045
Phone (847) 535-6150
Organizations & group practices 6
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.
-
- General Acute Care Hospital
- Chicago, IL
- NPI 1033218128
-
- Multi-Specialty Clinic/Center
- Chicago, IL
- NPI 1821048786
-
- Multi-Specialty Clinic/Center
- Carol Stream, IL
- NPI 1346235314
-
- Durable Medical Equipment & Medical Supplies
- Chicago, IL
- NPI 1417718479
-
- Community/Retail Pharmacy
- Calumet City, IL
- NPI 1255895678
-
- Critical Access Hospital
- Gibson City, IL
- NPI 1114935681
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Chicago, IL
- NPI 1508956509
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1522195200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1770336000000",
"number": "1902301138",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "150 HARVESTER DR STE 300",
"city": "BURR RIDGE",
"state": "IL",
"postal_code": "605275965",
"telephone_number": "773-702-1150"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "5841 S MARYLAND AVE",
"city": "CHICAGO",
"state": "IL",
"postal_code": "606371443",
"telephone_number": "773-702-1000"
}
],
"practiceLocations": [
{
"address_1": "1000 N Westmoreland Rd",
"address_purpose": "LOCATION",
"city": "Lake Forest",
"state": "IL",
"postal_code": "600451658",
"country_code": "US",
"telephone_number": "847-234-5600",
"fax_number": "847-535-7203",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "ANTONIOS",
"first_name": "NATHALIE",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2018-03-28",
"last_updated": "2026-02-06",
"certification_date": "2026-02-06",
"status": "A"
},
"taxonomies": [
{
"code": "207RC0200X",
"taxonomy_group": "",
"desc": "Internal Medicine, Critical Care Medicine",
"state": "IL",
"license": "036156686",
"primary": false
},
{
"code": "207RP1001X",
"taxonomy_group": "",
"desc": "Internal Medicine, Pulmonary Disease",
"state": "IL",
"license": "036156686",
"primary": true
},
{
"code": "208M00000X",
"taxonomy_group": "",
"desc": "Hospitalist",
"state": "IL",
"license": "036156686",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"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 Feb 6, 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.
- 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.