Individual provider Active NPI

Thaddeus R Cybulski, MD, PHD

  • Pulmonary Disease Physician
  • Chicago, IL
National Provider Identifier
1841646676
Registry record updated Aug 19, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pulmonary Disease PhysicianTaxonomy code 207RP1001X
License
036159529 Issued in IL
Practice address
675 N Saint Clair St Ste 18-200
Chicago, IL 60611-5929
Phone
(312) 695-8630
Fax
(312) 695-2857
NPI assigned
May 11, 2016
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 19, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 125.073663 IL
Pulmonary Disease Physician 207RP1001X 036159529 IL Primary

Addresses

Primary practice location

675 N Saint Clair St Ste 18-200
Chicago, IL 60611-5929

Mailing address

251 E Huron St
Chicago, IL 60611-3055
Phone (312) 926-2000

Other practice location 1

240 E Huron St
Suite 1-200
Chicago, IL 60611-2909
Phone (312) 503-7975

Other practice location 2

251 E Huron St
Chicago, IL 60611-3055
Phone (312) 926-2000

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
I20250603000962 IL Practitioner - Pulmonary DiseasePractitioner - Internal Medicine 3971837733 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Pulmonary DiseaseAlso: Internal Medicine
Education
Northwestern University Feinberg Medical School, 2019
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

250 E Superior
2304 Nwmff Prent WMN Hosp
Chicago, IL 60611-2914
Phone (312) 472-3660

250 E Superior St
Chicago, IL 60611-2914

251 E Huron
Chicago, IL 60611-2908

251 E Huron St
Chicago, IL 60611-2908

2635 Church Rd
Suite 101
Aurora, IL 60502-8943
Phone (630) 315-6900

4732 N Lincoln Ave
Chicago, IL 60625-8561
Phone (847) 475-2273

660 N Westmoreland Rd
302 Lake Forest OBGYN
Lake Forest, IL 60045-1673
Phone (312) 926-6146

675 N Saint Clair St
Chicago, IL 60611-5975

675 N St Clair
Chicago, IL 60611-5975

676 N Saint Clair
Chicago, IL 60611-2927

676 N Saint Clair St
Chicago, IL 60611-2927

885 Roosevelt Rd
Glen Ellyn, IL 60137-6141

Hospital & facility affiliations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Northwestern Medical Faculty Foundation CurrentSince Jun 1, 2025 Accepting new patients
Northwestern Medical Faculty Foundation CurrentSince Jun 1, 2025 Accepting new patients
Central Dupage Physician Group Internal Medicine Past Accepting new patients

Locations

Dept 5777
Carol Stream, IL 60122

251 E Huron St
Chicago, IL 60611

676 N Saint Clair St
Ste 2100
Chicago, IL 60611
Phone (312) 695-3117

675 N Saint Clair St
Ste 18-200
Chicago, IL 60611
Phone (312) 695-4525

660 N Westmoreland Rd
#302
Lake Forest, IL 60045

Organizations & group practices 3

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 3

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": "1462924800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755561600000",
    "number": "1841646676",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "251 E HURON ST",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606113055",
            "telephone_number": "312-926-2000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "675 N SAINT CLAIR ST STE 18-200",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606115929",
            "telephone_number": "312-695-8630",
            "fax_number": "312-695-2857"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "240 E Huron St",
            "address_2": "Suite 1-200",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606112909",
            "country_code": "US",
            "telephone_number": "312-503-7975",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "251 E Huron St",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606113055",
            "country_code": "US",
            "telephone_number": "312-926-2000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CYBULSKI",
        "first_name": "THADDEUS",
        "middle_name": "R",
        "name_prefix": "Dr.",
        "credential": "MD, PHD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-05-11",
        "last_updated": "2025-08-19",
        "certification_date": "2025-08-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": "125.073663",
            "primary": false
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "IL",
            "license": "036159529",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Chicago, IL

Sources for this page

Verify at the official NPI Registry.