TRENIKA J WILLIAMS MD, MS
NPI 1083295497
Emergency Medicine in Chicago, IL

Q: What is Trenika Williams's NPI number?

The NPI number for Trenika Williams is 1083295497. It was assigned to this individual provider in the NPPES registry on April 16, 2021.

Q: What is Trenika Williams's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Q: When was this NPI record last updated?

The NPPES record for Trenika Williams was last updated on April 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 16, 2021PECOS EnrolledAccepts Medicare Assignment

1653 W CONGRESS PKWY, CHICAGO, IL 60612(312) 947-1000(312) 942-4021 Get Directions Write a Review

NPPES record last updated: April 10, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Apr 10, 2026, Jan 14, 2026, Dec 29, 2025 and 2 more (5 updates tracked since 2021).

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About Trenika J Williams Md, Ms NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

TRENIKA J WILLIAMS MD, MS (NPI 1083295497) is an individual emergency medicine provider in Chicago, Illinois, licensed in Illinois (036177236) and active in the NPI registry since April 2021. She is enrolled in Medicare PECOS, is affiliated with Rush University Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1083295497

Entity TypeIndividualFemale

Primary Taxonomy207P00000X

Provider Legal NameTRENIKA J WILLIAMSCredential: MD, MS

Location Address1653 W CONGRESS PKWYChicago, IL 60612-3833

Mailing Address1653 W Congress PkwyChicago, IL 60612-3833

Phone(312) 947-1000

Fax(312) 942-4021

Sole ProprietorNo

Medical School CMSGeisel School Of Medicine At DartmouthGraduated 2021

Enumeration DateApril 16, 2021

Last NPPES UpdateApril 10, 20265 updates tracked since enumeration

NPPES CertifiedApril 10, 2026

✔ NPI 1083295497 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

License✔ Licensed in IL · 036177236

Definition

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

1653 W CONGRESS PKWY, Chicago, IL 60612

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Secondary Practice Locations 2

Location 12320 E 93rd StChicago, IL 60617-3909 · Phone (773) 967-5430 · Fax (773) 967-4205

Location 21000 Health Center DrMattoon, IL 61938-4644 · Phone (217) 258-2551 · Fax (217) 258-2256

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Trenika J Williams Md, Ms is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4880096700

PECOS Enrollment IDI20251024001640

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Rush University Medical Center

Acute Care Hospitals · Chicago, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140119

Location1653 West Congress ParkwayChicago, IL 60612 · Cook County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60612 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$94.06 typical visit price

range $60.08 – $183.39

Typical copayment $23.51 (range $15.02 – $45.84)

Most-billed visit code 99203

Established Patient

$105.70 typical visit price

range $18.97 – $148.12

Typical copayment $26.42 (range $4.74 – $37.03)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. SARAH ELIZABETH RIMAR M.D.

Internal Medicine