1. Home
  2. Directory
  3. Illinois
  4. Oakbrook Terrace
  5. Clinic Center
  6. NPI Profile

DUPAGE IMMEDIATE CARE, LTD
NPI 1114262326
Clinic/Center - Urgent Care in Oakbrook Terrace, IL

Active since November 29, 2012CLIA 14D2052264 · Waiver
1S210 SUMMIT AVE, OAKBROOK TERRACE, IL 60181(630) 282-6002(630) 282-7322 Get Directions Write a Review

NPPES record last updated: January 13, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dupage Immediate Care, Ltd NPPES

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

DUPAGE IMMEDIATE CARE, LTD (NPI 1114262326) is a healthcare organization registered as an urgent care in Oakbrook Terrace, Illinois and active in the NPI registry since November 2012. The organization holds a CLIA Waiver certificate valid through September 3, 2028 and lists Ibrahim A Majzoub, Ceo / President, as its authorized official.

NPPES Registry Identity

NPI1114262326
Entity TypeOrganization
Primary Taxonomy261QU0200X
Legal Business NameDUPAGE IMMEDIATE CARE, LTD
Location Address1S210 SUMMIT AVEOakbrook Terrace, IL 60181-3933
Mailing Address1s210 Summit AveOakbrook Terrace, IL 60181 · (630) 282-6002 · Fax (630) 282-7322
Phone(630) 282-6002
Fax(630) 282-7322
Organization SubpartNo
Authorized OfficialIbrahim A MajzoubCeo / President · (630) 282-6002
Enumeration DateNovember 29, 2012
Last NPPES UpdateJanuary 13, 2025
NPPES CertifiedJanuary 10, 2025
✔ NPI 1114262326 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyClinic/Center · Urgent CareAmbulatory Health Care Facilities
Taxonomy Code261QU0200X
License✔ Licensed in IL · 68548217
Also ListedFamily MedicineTaxonomy 207Q00000X
Also ListedInternal Medicine · Infectious DiseaseTaxonomy 207RI0200X
1S210 SUMMIT AVE, Oakbrook Terrace, IL 60181
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dupage Immediate Care, Ltd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

4

Medicare enrollment records show 4 clinicians reassign Medicare billing to Dupage Immediate Care, Ltd, which bills Medicare for the services they deliver. Of these, 1 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (4)

Cynthia Wollenschlager, M.D.
Internal Medicine
NPI 1124086087
3825 HIGHLAND AVE TOWER I, SUITE 3F
Downers Grove, IL 60515
(630) 971-9275
✔ PECOS✔ Accepts Medicare3.2 mi
Ibrahim Majzoub, M.D.
Pulmonary Disease
NPI 1366537409
645 S CENTRAL AVE OUTPATIENT FACILITY
Chicago, IL 60644
(847) 800-2824
✔ PECOS✔ Accepts Medicare11 mi
Mark Holterman, M.D.
General Surgery
NPI 1033168273
1725 W HARRISON ST SUITE 818
Chicago, IL 60612
(312) 942-5397
✔ PECOS✔ Accepts Medicare16 mi
Ratnesh Kumar, MBBS,MD
Pediatric Medicine
NPI 1952544918
1585 BARRINGTON RD SUITE 601-A , DOCTOR'S BUILDING#2
Hoffman Estates, IL 60169
(847) 884-5911
✔ PECOS16 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 14D2052264

Dupage Immediate Care · Oakbrook Terrace, IL
Active · expires Sep 3, 2028
CLIA Number14D2052264
Laboratory TypePhysician Office
Certificate Effective DateSeptember 4, 2026
Certificate Expiration DateSeptember 3, 2028
Laboratory DirectorIbrahim Ahmad Majzoub
Laboratory Phone(630) 282-6002
Laboratory LocationDupage Immediate Care1 S 210 Summite Ave, Oakbrook Terrace, IL 60181
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Dupage Immediate Care, Ltd's NPI number?

The NPI number for Dupage Immediate Care, Ltd is 1114262326. It was assigned to this organization in the NPPES registry on November 29, 2012.

Where is Dupage Immediate Care, Ltd located?

Dupage Immediate Care, Ltd is located at 1s210 Summit Ave, Oakbrook Terrace, IL 60181. The listed phone number is (630) 282-6002.

What is Dupage Immediate Care, Ltd's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Urgent Care, with taxonomy code 261QU0200X.

Is Dupage Immediate Care, Ltd enrolled in Medicare?

Yes. Dupage Immediate Care, Ltd is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Dupage Immediate Care, Ltd?

According to the CMS Revalidation Reassignment List (October 2026 release), 4 clinicians reassign their Medicare billing to Dupage Immediate Care, Ltd, in General Surgery, Internal Medicine, Pediatric Medicine and Pulmonary Disease. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 1 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Dupage Immediate Care, Ltd hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 14D2052264) is associated with this NPI, valid through September 3, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Dupage Immediate Care, Ltd was last updated on January 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.