Individual provider Active NPI

Trenika J Williams, MD, MS

  • Emergency Medicine Physician
  • Chicago, IL
National Provider Identifier
1083295497
Registry record updated Apr 10, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
036177236 Issued in IL
Practice address
1653 W Congress Pkwy
Chicago, IL 60612-3833
Phone
(312) 947-1000
Fax
(312) 942-4021
NPI assigned
Apr 16, 2021
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 10, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X 036177236 IL Primary

Addresses

Primary practice location

1653 W Congress Pkwy
Chicago, IL 60612-3833

Mailing address

1653 W Congress Pkwy
Chicago, IL 60612-3833

Other practice location 1

1000 Health Center Dr
Mattoon, IL 61938-4644
Phone (217) 258-2551

Other practice location 2

2320 E 93rd St
Chicago, IL 60617-3909
Phone (773) 967-5430

Electronic endpoints 3

TypeEndpointUseAffiliation
CONNECT URL https://esmd.abilitynetwork.com:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRRequest_Service Other Ability Network
Direct Messaging Address twilliams449531@direct.myadvocateaurora.org Direct
FHIR URL https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/

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
I20251024001640 IL Practitioner - Emergency Medicine 4880096700 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
Geisel School of Medicine at Dartmouth, 2021
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Sarah Bush Lincoln Health CenterGroup PAC ID 5092614867, 411 clinicians
Rush University Medical GroupGroup PAC ID 5496658874, 1,521 clinicians

Practice addresses (Care Compare)

1000 Health Ctr Dr
Mattoon, IL 61938-4644
Phone (217) 258-2525

1653 W Congress Pkwy
Chicago, IL 60612-3833
Phone (312) 563-4270

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
036177236ILMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Rush University Medical Center CurrentSince Oct 13, 2025 Accepting new patients
Sarah Bush Lincoln Health Center CurrentSince Dec 11, 2025 Accepting new patients
Rush Oak Park ER Physicians Group CurrentSince Oct 13, 2025 Accepting new patients
Rush University Medical Group Emergency Medicine CurrentSince Oct 13, 2025 Accepting new patients
Sarah Bush Lincoln Health Center CurrentSince Dec 11, 2025 Accepting new patients

Locations

75 Remittance Dr
Dept 1611
Chicago, IL 60675

75 Remittance Dr
Dept 1620
Chicago, IL 60675

1700 W Van Buren St
#500
Chicago, IL 60612
Phone (312) 563-2875

1653 W Congress Pkwy
Chicago, IL 60612
Phone (312) 942-3138

1000 Health Center Dr
Mattoon, IL 61938
Phone (217) 258-2389

101 Professional Plz
Mattoon, IL 61938
Phone (217) 238-3730

520 S Maple Ave
Oak Park, IL 60304
Phone (708) 383-9300

Interoperability endpoints

  • Direct secure messaging: twilliams449531@direct.myadvocateaurora.org

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 2

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": "1618531200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775779200000",
    "number": "1083295497",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1653 W CONGRESS PKWY",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606123833"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1653 W CONGRESS PKWY",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606123833",
            "telephone_number": "312-947-1000",
            "fax_number": "312-942-4021"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1000 Health Center Dr",
            "address_purpose": "LOCATION",
            "city": "Mattoon",
            "state": "IL",
            "postal_code": "619384644",
            "country_code": "US",
            "telephone_number": "217-258-2551",
            "fax_number": "217-258-2256",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2320 E 93rd St",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606173909",
            "country_code": "US",
            "telephone_number": "773-967-5430",
            "fax_number": "773-967-4205",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "TRENIKA",
        "middle_name": "J",
        "credential": "MD, MS",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-04-16",
        "last_updated": "2026-04-10",
        "certification_date": "2026-04-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "IL",
            "license": "036177236",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "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"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "twilliams449531@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "2320 E 93rd St",
            "city": "Chicago",
            "state": "IL",
            "country_code": "US",
            "postal_code": "606173909",
            "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": "2320 E 93rd St",
            "city": "Chicago",
            "state": "IL",
            "country_code": "US",
            "postal_code": "606173909",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Chicago, IL

Sources for this page

Verify at the official NPI Registry.