Individual provider Active NPI

Nathalie Antonios, MD

  • Pulmonary Disease Physician
  • Chicago, IL
National Provider Identifier
1902301138
Registry record updated Feb 6, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pulmonary Disease PhysicianTaxonomy code 207RP1001X
License
036156686 Issued in IL
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

Updated by the provider on Feb 6, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
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
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20210806000844 IL Practitioner - Pulmonary DiseasePractitioner - Internal MedicinePractitioner - Hospitalist 1254680978 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Pulmonary DiseaseAlso: Internal Medicine
Education
Other, 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
The University of Chicago Medical CenterGroup PAC ID 7618880766, 907 clinicians
University of ChicagoGroup PAC ID 7719899426, 1,674 clinicians

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 Hospital, Chicago, IL, CCN 140088

Merit-based Incentive Payment System (MIPS)

Final score
95.19 of 100Reported as apm
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

LicenseStateTypeSpecialty
036156686ILMDHospitalist Physician

Practice roles

OrganizationSpecialtyStatusNew patients
University of Chicago CurrentSince Feb 4, 2026 Accepting new patients
Northwestern Medical Faculty Foundation CurrentSince Aug 1, 2021 Accepting new patients
Northwestern Medical Faculty Foundation CurrentSince Aug 1, 2021 Accepting new patients
The University of Chicago Medical Center CurrentSince Feb 4, 2026 Accepting new patients
The University of Chicago Medical Center CurrentSince Feb 4, 2026 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.

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": "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

Verify at the official NPI Registry.