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GREG S. COHEN, MD, LLC
NPI 1073588752
Internal Medicine - Gastroenterology in Chicago, IL

Active since February 17, 2006CLIA 14D1042343 · Waiver
676 N SAINT CLAIR ST, SUITE 1525, CHICAGO, IL 60611(312) 695-4452(312) 695-4453 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Greg S. Cohen, Md, Llc NPPES

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

GREG S. COHEN, MD, LLC (NPI 1073588752) is a healthcare organization registered as a gastroenterology in Chicago, Illinois and active in the NPI registry since February 2006. The organization holds a CLIA Waiver certificate valid through June 23, 2027 and lists Greg S Cohen, Physician Owner, as its authorized official.

NPPES Registry Identity

NPI1073588752
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameGREG S. COHEN, MD, LLC
Location Address676 N SAINT CLAIR ST, SUITE 1525Chicago, IL 60611-2927
Mailing Address1730 Park St, Suite 101Naperville, IL 60563-2688 · (630) 718-0200 · Fax (630) 718-0900
Phone(312) 695-4452
Fax(312) 695-4453
Organization SubpartNo
Authorized OfficialGreg S CohenPhysician Owner · (312) 695-4452
Enumeration DateFebruary 17, 2006
Last NPPES UpdateAugust 22, 2020
✔ NPI 1073588752 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
676 N SAINT CLAIR ST, Chicago, IL 60611
Open in Google Maps ↗

Other Identifiers 1

Other01635366IL · Blue Cross / Blue Shield

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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 14D1042343

Greg S Cohen MD LLC · Chicago, IL
Active · expires Jun 23, 2027
CLIA Number14D1042343
Laboratory TypePhysician Office
Certificate Effective DateJune 24, 2025
Certificate Expiration DateJune 23, 2027
Laboratory DirectorGreg S. Cohen
Laboratory Phone(312) 695-4452
Laboratory LocationGreg S Cohen MD LLC676 N Saint Clair St - Ste 1750, Chicago, IL 60611
CLIA data matches this NPI record on: Address Name Phone
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.

MS. LISA RAUBOLT
Social Worker (Clinical)
676 N SAINT CLAIR ST
CHICAGO, IL 60611
Cook County (312) 926-4512
JULIANNA L ROTH MD
Internal Medicine
676 N SAINT CLAIR ST, SUITE 2300
CHICAGO, IL 60611
Cook County (312) 926-6000
ANKIT BHARAT MD
Thoracic Surgery (Cardiothoracic Vascular Surgery)
676 N SAINT CLAIR ST, SUITE 650
CHICAGO, IL 60611
Cook County (312) 926-7628
JOAQUIN CARLOS BRIEVA MD
Dermatology
676 N SAINT CLAIR ST, SUITE 1600
CHICAGO, IL 60611
Cook County (312) 695-8106
JOHN M SHAW MD
Internal Medicine (Medical Oncology)
676 N SAINT CLAIR ST, STE 2140
CHICAGO, IL 60611
Cook County (312) 664-5400
MELVIN J GOLDSTEIN, M.D.,S.C.
Internal Medicine (Gastroenterology)
676 N SAINT CLAIR ST, SUITE 1525
CHICAGO, IL 60611
Cook County (312) 337-1556
DR. HOWARD M. AROF M.D.
Obstetrics & Gynecology
676 N SAINT CLAIR ST, #1880
CHICAGO, IL 60611
Cook County (312) 642-9844
DR. MARIA MATSANGOU M.D.
Internal Medicine (Hematology & Oncology)
676 N SAINT CLAIR ST, SUITE 850
CHICAGO, IL 60611
Cook County (312) 695-6182

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 Greg S. Cohen, MD, LLC's NPI number?

The NPI number for Greg S. Cohen, MD, LLC is 1073588752. It was assigned to this organization in the NPPES registry on February 17, 2006.

Where is Greg S. Cohen, MD, LLC located?

Greg S. Cohen, MD, LLC is located at 676 N Saint Clair St Suite 1525, Chicago, IL 60611. The listed phone number is (312) 695-4452.

What is Greg S. Cohen, MD, LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Does Greg S. Cohen, MD, LLC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 14D1042343) is associated with this NPI, valid through June 23, 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 Greg S. Cohen, MD, LLC was last updated on August 22, 2020. 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.