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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CIMPAR, S.C.
NPI 1467496224
Internal Medicine in Oak Park, IL

Active since June 15, 2006CLIA 14D2016872 · Waiver
101 MADISON ST STE 300, OAK PARK, IL 60302(708) 486-2700(708) 486-2702 Get Directions Write a Review

NPPES record last updated: August 26, 2026. Verified against the NPPES registry weekly; last sync: September 20, 2026.

Record update history: Aug 26, 2026, Mar 17, 2026, Mar 2, 2021 and 1 more (4 updates tracked since 2019).

About Cimpar, S.c. NPPES

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

CIMPAR, S.C. (NPI 1467496224) is a healthcare organization registered as an internal medicine in Oak Park, Illinois and active in the NPI registry since June 2006. The organization holds a CLIA Waiver certificate valid through January 26, 2028 and lists Dheeraj Mahajan, President, as its authorized official.

NPPES Registry Identity

NPI1467496224
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameCIMPAR, S.C.
Location Address101 MADISON ST STE 300Oak Park, IL 60302-4210
Mailing Address101 Madison St Ste 300Oak Park, IL 60302-4210 · (630) 854-1871 · Fax (708) 486-2702
Phone(708) 486-2700
Fax(708) 486-2702
Organization SubpartNo
Authorized OfficialDheeraj MahajanPresident · (630) 854-1871
Enumeration DateJune 15, 2006
Last NPPES UpdateAugust 26, 20264 updates tracked since enumeration
NPPES CertifiedAugust 26, 2026
✔ NPI 1467496224 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
101 MADISON ST STE 300, Oak Park, IL 60302
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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

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware.Insurance ›

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 14D2016872

Cimpar Sc - Oak Park · Oak Park, IL
Active · expires Jan 26, 2028
CLIA Number14D2016872
Laboratory TypePhysician Office
Certificate Effective DateJanuary 27, 2026
Certificate Expiration DateJanuary 26, 2028
Laboratory DirectorDheeraj Mahajan
Laboratory Phone(708) 486-2710
Laboratory LocationCimpar Sc - Oak Park101 Madison St - Ste 300, Oak Park, IL 60302
CLIA data matches this NPI record on: Address
This certificate is issued to a laboratory to perform only waived tests.

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.

CIMPAR AT HOME, LLC
Home Health
101 MADISON ST STE 300
OAK PARK, IL 60302
Cook County (708) 486-2700
NIRALI PATEL MD, MBA
Internal Medicine (Cardiovascular Disease)
101 MADISON ST STE 300
OAK PARK, IL 60302
Cook County (708) 486-2700
DR. MUJTABA HUSSAIN MBBS
Internal Medicine
101 MADISON ST STE 300
OAK PARK, IL 60302
Cook County (708) 486-2700
CIMPAR DIAGNOSTICS LLC
Radiology (Diagnostic Radiology)
101 MADISON ST STE 300
OAK PARK, IL 60302
Cook County (773) 849-9406
DR. ANTHONY ABADIR MD
Psychiatry & Neurology (Psychiatry)
101 MADISON ST STE 300
OAK PARK, IL 60302
Cook County (708) 486-2700
RASHIDAH SEMBATYA FNP-C
Nurse Practitioner (Family)
101 MADISON ST STE 300
OAK PARK, IL 60302
Cook County (708) 486-2700
DR. SHANLI PARNIA M.D.
Internal Medicine
101 MADISON ST STE 300
OAK PARK, IL 60302
Cook County (708) 486-2700
TERESITA BERNABE
Nurse Practitioner (Adult Health)
101 MADISON ST STE 300
OAK PARK, IL 60302
Cook County (708) 486-2700

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 Cimpar, S.C.'s NPI number?

The NPI number for Cimpar, S.C. is 1467496224. It was assigned to this organization in the NPPES registry on June 15, 2006.

Where is Cimpar, S.C. located?

Cimpar, S.C. is located at 101 Madison St Ste 300, Oak Park, IL 60302. The listed phone number is (708) 486-2700.

What is Cimpar, S.C.'s specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Does Cimpar, S.C. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 14D2016872) is associated with this NPI, valid through January 26, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Cimpar, S.C. accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Cimpar, S.C. as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Cimpar, S.C. was last updated on August 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 30 days 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.