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

DOCTORS TEST CENTERS
NPI 1891370292
Clinic/Center - Primary Care in Chicago, IL

Active since March 17, 2021CLIA 41D2230080 · Waiver
20 W ONTARIO ST, CHICAGO, IL 60654(312) 858-7638(312) 276-4452 Get Directions Write a Review

NPPES record last updated: June 29, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 29, 2021, Mar 17, 2021 (2 updates tracked since 2021).

About Doctors Test Centers NPPES

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

DOCTORS TEST CENTERS (NPI 1891370292) is a healthcare organization registered as a primary care in Chicago, Illinois and active in the NPI registry since March 2021. The organization holds a CLIA Waiver certificate valid through July 19, 2027 and lists Jeffrey Weinzweig, President, as its authorized official.

NPPES Registry Identity

NPI1891370292
Entity TypeOrganization
Primary Taxonomy261QP2300X
Legal Business NameCOVID MEDICAL SOLUTION ILLINOIS LLC
Location Address20 W ONTARIO STChicago, IL 60654-3809
Mailing Address20 W Ontario StChicago, IL 60654-3809 · (312) 858-7638 · Fax (312) 276-4452
Phone(312) 858-7638
Fax(312) 276-4452
Organization SubpartNo
Authorized OfficialJeffrey WeinzweigPresident · (312) 858-7638
Enumeration DateMarch 17, 2021
Last NPPES UpdateJune 29, 20212 updates tracked since enumeration
NPPES CertifiedJune 29, 2021
✔ NPI 1891370292 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Primary CareAmbulatory Health Care Facilities
Taxonomy Code261QP2300X
20 W ONTARIO ST, Chicago, IL 60654
Open in Google Maps ↗

Other Names 1

Doing Business AsDoctors Test Centers

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 41D2230080

Doctors Test Centers · Woonsocket, RI
Active · expires Jul 19, 2027
CLIA Number41D2230080
Laboratory TypePhysician Office
Certificate Effective DateJuly 20, 2025
Certificate Expiration DateJuly 19, 2027
Laboratory DirectorJeffrey Weinzweig
Laboratory Phone(312) 858-7638
Laboratory LocationDoctors Test Centers450 Clinton St, Woonsocket, RI 02895
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 Covid Medical Solution Illinois LLC's NPI number?

The NPI number for Covid Medical Solution Illinois LLC is 1891370292. It was assigned to this organization in the NPPES registry on March 17, 2021. The provider is doing business as Doctors Test Centers.

Where is Covid Medical Solution Illinois LLC located?

Covid Medical Solution Illinois LLC is located at 20 W Ontario St, Chicago, IL 60654. The listed phone number is (312) 858-7638.

What is Covid Medical Solution Illinois LLC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Primary Care, with taxonomy code 261QP2300X.

Does Covid Medical Solution Illinois LLC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 41D2230080) is associated with this NPI, valid through July 19, 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 Covid Medical Solution Illinois LLC was last updated on June 29, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.