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Gastroenterologists in Illinois

Data updated monthly · Last refresh October 2026

886 Gastroenterology providers practice in Illinois, including 264 (30%) offering telehealth. The largest concentration is in Chicago. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.

886providers
264telehealth
Chicagotop city

Gastroenterology by city in Illinois

Choose a city to see providers there.

Gastroenterology in Chicago278 providers
Gastroenterology in Maywood39 providers
Gastroenterology in Springfield25 providers
Gastroenterology in Rockford25 providers
Gastroenterology in Aurora23 providers
Gastroenterology in Naperville23 providers
Gastroenterology in Peoria19 providers
Gastroenterology in Evanston18 providers
Gastroenterology in Niles18 providers
Gastroenterology in Glenview17 providers
Gastroenterology in Oak Lawn17 providers
Gastroenterology in Des Plaines15 providers
Gastroenterology in Arlington Heights15 providers
Gastroenterology in Elmhurst15 providers
Gastroenterology in Elgin13 providers
Gastroenterology in Gurnee11 providers
Gastroenterology in Hazel Crest11 providers
Gastroenterology in Libertyville11 providers
Gastroenterology in Lake Barrington10 providers
Gastroenterology in Winfield10 providers
Gastroenterology in Bourbonnais9 providers
Gastroenterology in Decatur9 providers
Gastroenterology in Hoffman Estates9 providers
Gastroenterology in Olympia Fields9 providers

Gastroenterology providers in Illinois

Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Claus Fimmel, MD
Northbrook, IL · $883 in drug and device payments (2025) · (224) 407-4400
Dr. Jeffrey Nathanson, MD
Northbrook, IL · $2,491 in drug and device payments (2025) · (224) 407-4400
Dr. Lauren Bloomberg
Northbrook, IL · $32 in drug and device payments (2025) · (224) 407-4400
Dr. Axel Feller, MD
North Chicago, IL · No drug or device payments recorded (2025) · (847) 688-1900
Dr. Pallavi Shah, MD
North Chicago, IL · No drug or device payments recorded (2025) · (847) 688-1900
Dr. Kevin Khoury, MD
Oak Brook, IL · No drug or device payments recorded (2025) · (312) 493-9115
Dr. David Chua, MD
Oakbrook Terrace, IL · $32 in drug and device payments (2025) · (630) 889-9889
Dr. Dhruva Tilwalli, MD
Oakbrook Terrace, IL · No drug or device payments recorded (2025) · (630) 827-0100
Dr. Jennie Ng, M.D.
Oakbrook Terrace, IL · $581 in drug and device payments (2025) · Telehealth · (630) 717-2600
Dr. Matthew Smith, M.D.
Oakbrook Terrace, IL · $528 in drug and device payments (2025) · Telehealth · (630) 717-2600
Dr. Stephen Grill, M.D.
Oakbrook Terrace, IL · No drug or device payments recorded (2025) · (630) 833-0653
Dr. Harish Bhatia, M.D.
Oak Forest, IL · No drug or device payments recorded (2025) · (708) 535-3300
Dr. Brian Blumenstein, MD
Oak Lawn, IL · $247 in drug and device payments (2025) · (708) 425-8616
Dr. Hareth Raddawi, MD
Oak Lawn, IL · $332 in drug and device payments (2025) · (708) 684-9230
Dr. Imad Elkhatib, M.D
Oak Lawn, IL · $103 in drug and device payments (2025) · Telehealth · (708) 684-9230
Dr. Jeffrey Port, M.D.
Oak Lawn, IL · $191 in drug and device payments (2025) · Telehealth · (708) 499-5678
Dr. Kamran Ayub, MD
Oak Lawn, IL · $37,818 in drug and device payments (2025) · Telehealth · (708) 499-5678
Dr. Mahesh Vadali, M.D.
Oak Lawn, IL · No drug or device payments recorded (2025) · (708) 636-1818
Dr. Marcel Ghanim, MD
Oak Lawn, IL · $41 in drug and device payments (2025) · (708) 684-9230
Dr. Michael Dastice, MD
Oak Lawn, IL · $80 in drug and device payments (2025) · (708) 424-1202
Dr. Mukarram Amine, DO
Oak Lawn, IL · $271 in drug and device payments (2025) · Telehealth · (708) 684-9230
Dr. Rogelio Silva, M.D.
Oak Lawn, IL · $39,016 in drug and device payments (2025) · (708) 684-9230
Dr. Samir Patel, MD
Oak Lawn, IL · $441 in drug and device payments (2025) · (708) 425-8616
Dr. S Venkataraman, M.D.
Oak Lawn, IL · $450 in drug and device payments (2025) · (708) 636-1818
Dr. Talal Sunbulli, MD
Oak Lawn, IL · No drug or device payments recorded (2025) · (708) 424-1202
Dr. Thomas Arndt, MD
Oak Lawn, IL · No drug or device payments recorded (2025) · (708) 425-8616
Dr. Vincent Muscarello, MD
Oak Lawn, IL · $174 in drug and device payments (2025) · (708) 425-8616
Dr. Wayne Lue, MD
Oak Lawn, IL · $382 in drug and device payments (2025) · (708) 425-8616
Dr. Yousef Nassar
Oak Lawn, IL · $452 in drug and device payments (2025) · (708) 684-9230
Dr. Daniel Kruss, MD
Oak Park, IL · $111 in drug and device payments (2025) · (847) 405-0068
Dr. Gayle Rosenthal, MD
Oak Park, IL · No drug or device payments recorded (2025) · (708) 524-1420
Dr. Ilysa Diamond, DO
Oak Park, IL · $1,918 in drug and device payments (2025) · (708) 613-4417
Dr. Kamran Heydarpour, MD
Oak Park, IL · $77 in drug and device payments (2025) · (708) 763-8248
Dr. Shubha Singh, M.D.
Oak Park, IL · No drug or device payments recorded (2025) · Telehealth · (331) 221-9003
Dr. Louis Levine, MD
O Fallon, IL · No drug or device payments recorded (2025) · (618) 641-5803
Dr. Adrienne Fregia, MD
Olympia Fields, IL · $743 in drug and device payments (2025) · (708) 679-2380
Dr. Amer Alsamman, MD
Olympia Fields, IL · $2,991 in drug and device payments (2025) · (708) 852-2780
Dr. Mustafa Nawaz, D.O.
Olympia Fields, IL · $1,373 in drug and device payments (2025) · Telehealth · (708) 747-4000
Dr. Nabiha Haider, DO
Olympia Fields, IL · $916 in drug and device payments (2025) · (708) 747-4000
Dr. Nicholas Baur
Olympia Fields, IL · $28 in drug and device payments (2025) · (708) 747-4000
Dr. Pinhas Sharon, MD
Olympia Fields, IL · No drug or device payments recorded (2025) · (708) 798-8112
Dr. Richard Aaronson, M.D.
Olympia Fields, IL · No drug or device payments recorded (2025) · (708) 679-2600
Dr. Shil Punatar, D.O.
Olympia Fields, IL · $1,509 in drug and device payments (2025) · (708) 747-4000
Dr. Tilemahos Spyratos, D.O.
Olympia Fields, IL · $3,212 in drug and device payments (2025) · (708) 679-2380
Dr. Ahmad Alkaddour, M.D.
Orland Park, IL · No drug or device payments recorded (2025) · Telehealth · (708) 226-2870
Dr. Alexis Serrano, DO
Orland Park, IL · No drug or device payments recorded (2025) · (708) 226-2870
Dr. Ayodele Osowo, MD
Orland Park, IL · $762 in drug and device payments (2025) · (708) 226-2870
Dr. Jatinder Goyal, MD
Orland Park, IL · $138 in drug and device payments (2025) · (708) 226-2890
Dr. Tarun Patel, M.D.
Orland Park, IL · No drug or device payments recorded (2025) · (708) 226-2870
Dr. Zahid Afzal, MD
Orland Park, IL · $204 in drug and device payments (2025) · (815) 300-7764

Conditions Gastroenterology providers in Illinois commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Gastroenterology providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Gastroenterology providers are in Illinois?

There are 886 Gastroenterology providers with active NPI records practicing in Illinois, according to federal NPPES data refreshed monthly.

Do Gastroenterology providers in Illinois offer telehealth?

Yes. 264 of the 886 Gastroenterology providers in Illinois (about 30%) report offering telehealth services in CMS data.

Which cities in Illinois have the most Gastroenterology providers?

Chicago (278), Maywood (39), Springfield (25) have the highest concentration of Gastroenterology providers in Illinois.

How many Gastroenterology providers in Illinois received drug or device company payments?

554 of 886 Gastroenterology providers in Illinois (63%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Gastroenterology providers in Illinois treat?

Gastroenterology providers commonly treat acid reflux, IBS, Crohn disease, ulcerative colitis, celiac disease and related conditions. Individual practices vary, so confirm with the provider before booking.

Where does this data come from?

Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

Do most Gastroenterologists in Illinois work in independent practices or large health systems?

Among 598 Gastroenterologists in Illinois enrolled in Medicare, 9% bill through a solo or small practice with fewer than 10 clinicians, 9% through a mid-size group of 10 to 99, and 82% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Gastroenterologists in Illinois work at?

According to CMS facility affiliation records, the Illinois hospitals where the most Gastroenterologists hold privileges are Northwestern Medicine Central Dupage Hospital in Winfield; Northwestern Memorial Hospital in Chicago; Northshore University Healthsystem - Evanston Hospital in Evanston.

Related reading on HealthcareDiscovery.AI

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Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory. Are you a Gastroenterology in Illinois? Get featured.