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CONCENTRA
NPI 1154871127
Clinic/Center - Occupational Medicine in Darien, IL

Active since October 13, 2016CLIA 14D2025629 · Waiver
7421 SOUTH CASS AVENUE, DARIEN, IL 60561(630) 286-5300(630) 986-1096 Get Directions Write a Review

NPPES record last updated: October 13, 2016. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Concentra NPPES

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

CONCENTRA (NPI 1154871127) is a healthcare organization registered as an occupational medicine in Darien, Illinois and active in the NPI registry since October 2016. The organization holds a CLIA Waiver certificate valid through June 13, 2027 and lists Adam Skwarlo, Center Operations Director, as its authorized official.

NPPES Registry Identity

NPI1154871127
Entity TypeOrganization
Primary Taxonomy261QX0100X
Legal Business NameCONCENTRA
Location Address7421 SOUTH CASS AVENUEDarien, IL 60561-3607
Mailing Address7421 Cass AveDarien, IL 60561-3607 · (630) 286-5300 · Fax (630) 986-1096
Phone(630) 286-5300
Fax(630) 986-1096
Organization SubpartNo
Authorized OfficialAdam SkwarloCenter Operations Director · (630) 286-5300
Enumeration DateOctober 13, 2016
✔ NPI 1154871127 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Occupational MedicineAmbulatory Health Care Facilities
Taxonomy Code261QX0100X
License✔ Licensed in IL · 036.111003
7421 SOUTH CASS AVENUE, Darien, IL 60561
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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 14D2025629

Concentra Urgent Care · Darien, IL
Active · expires Jun 13, 2027
CLIA Number14D2025629
Laboratory TypePhysician Office
Certificate Effective DateJune 14, 2025
Certificate Expiration DateJune 13, 2027
Laboratory DirectorStanley Simon
Laboratory Phone(630) 285-5300
Laboratory LocationConcentra Urgent Care7421 S Cass Ave, Darien, IL 60561
CLIA data matches this NPI record on: Address Name
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 Concentra's NPI number?

The NPI number for Concentra is 1154871127. It was assigned to this organization in the NPPES registry on October 13, 2016.

Where is Concentra located?

Concentra is located at 7421 South Cass Avenue, Darien, IL 60561. The listed phone number is (630) 286-5300.

What is Concentra's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Occupational Medicine, with taxonomy code 261QX0100X.

Does Concentra hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 14D2025629) is associated with this NPI, valid through June 13, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Concentra was last updated on October 13, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.