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CASSIDY WILLIAMS DO
NPI 1578211140
Surgery in Chicago, IL

Active since March 14, 2022PECOS Enrolled
600 S PAULINA ST, CHICAGO, IL 60612(312) 942-7100 Get Directions Write a Review

NPPES record last updated: September 20, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Cassidy Williams Do NPPES

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

CASSIDY WILLIAMS DO (NPI 1578211140) is an individual surgery provider in Chicago, Illinois, licensed in Illinois (125.082539) and active in the NPI registry since March 2022. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1578211140
Entity TypeIndividualFemale
Primary Taxonomy208600000X
Provider Legal NameCASSIDY WILLIAMSCredential: DO
Location Address600 S PAULINA STChicago, IL 60612-3806
Mailing Address600 S Paulina StChicago, IL 60612-3806
Phone(312) 942-7100
Sole ProprietorNo
Enumeration DateMarch 14, 2022
Last NPPES UpdateSeptember 20, 2023
NPPES CertifiedSeptember 20, 2023
✔ NPI 1578211140 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in IL · 125.082539
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License 125.082539 (IL)
600 S PAULINA ST, Chicago, IL 60612
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Other Names 1

Former Name (1)Cassidy Peters

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Cassidy Williams Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

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
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
Most-billed visit code 99213
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. JOSEPH ROBERT KREBS MD
Radiology (Vascular & Interventional Radiology)
600 S PAULINA ST
CHICAGO, IL 60612
Cook County (913) 544-6685
KAVANTISSA MONARAWILA KEPPETIPOLA MD
Neurological Surgery
600 S PAULINA ST
CHICAGO, IL 60612
Cook County (312) 942-7100
WANNA ZHANG M.D.
Hospitalist
600 S PAULINA ST
CHICAGO, IL 60612
Cook County (312) 942-5000
KAZUKI SAKAKURA
Neurological Surgery
600 S PAULINA ST
CHICAGO, IL 60612
Cook County (628) 628-6309
AUDREY GOLDSTEIN
Student in an Organized Health Care Education/Training Program
600 S PAULINA ST
CHICAGO, IL 60612
Cook County (931) 942-7100
KOBE PEREZ MD
Family Medicine
600 S PAULINA ST
CHICAGO, IL 60612
Cook County (312) 942-0312
DR. SCOTT D EBERLY MD
Emergency Medicine
600 S PAULINA ST
CHICAGO, IL 60612
Cook County (312) 942-5000
RAJ C SHAH M.D.
Family Medicine (Geriatric Medicine)
600 S PAULINA ST, SUITE 130
CHICAGO, IL 60612
Cook County (312) 942-3333

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Cassidy Williams's NPI number?

The NPI number for Cassidy Williams is 1578211140. It was assigned to this individual provider in the NPPES registry on March 14, 2022. The provider is also known as Cassidy Peters.

Where is Cassidy Williams located?

Cassidy Williams practices at 600 S Paulina St, Chicago, IL 60612. The listed phone number is (312) 942-7100.

What is Cassidy Williams's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Cassidy Williams enrolled in Medicare?

Yes. Cassidy Williams is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Cassidy Williams was last updated on September 20, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.