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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. Sandeep Walia, M.D.
Belleville, IL · $185 in drug and device payments (2025) · (618) 767-3235
Dr. Stephen Schmidt, M.D.
Belleville, IL · No drug or device payments recorded (2025) · (618) 277-0475
Dr. Vasantha Pai, M.D
Belleville, IL · $2,931 in drug and device payments (2025) · (618) 355-0880
Dr. Yahia Al Turk, MD
Belleville, IL · $74 in drug and device payments (2025) · (618) 257-6220
Dr. Allen Bernthal, M.D.
Berwyn, IL · No drug or device payments recorded (2025) · (708) 749-4617
Dr. David Vanthiel, MD
Berwyn, IL · $155 in drug and device payments (2025) · (414) 236-7224
Dr. Manuel Alva, M.D.
Berwyn, IL · $534 in drug and device payments (2025) · (708) 795-0890
Dr. Kenneth Schoenig, MD
Bloomington, IL · $4,051 in drug and device payments (2025) · (309) 454-5900
Dr. Omar Khokhar, MD
Bloomington, IL · $63,697 in drug and device payments (2025) · Telehealth · (309) 664-3000
Dr. Robert Clark, MD
Bloomington, IL · $2,358 in drug and device payments (2025) · (309) 454-5900
Dr. Vijay Laxmi Misra, M.D.
Bloomington, IL · $2,650 in drug and device payments (2025) · (309) 454-5900
Dr. Rafiq Ahmed, MD
Blue Island, IL · No drug or device payments recorded (2025) · (708) 388-7028
Dr. Abdus Soudagar, M.D.
Bolingbrook, IL · $140 in drug and device payments (2025) · (630) 312-2590
Dr. Lola Kwan, MD
Bolingbrook, IL · $59 in drug and device payments (2025) · (630) 312-2590
Dr. Sameer Barkatullah, M.D.
Bolingbrook, IL · $199 in drug and device payments (2025) · (630) 312-2590
Dr. Ashish Shah, M.D.
Bourbonnais, IL · $1,743 in drug and device payments (2025) · Telehealth · (815) 937-5200
Dr. Brian Sasso, DO
Bourbonnais, IL · $313 in drug and device payments (2025) · Telehealth · (815) 937-5200
Dr. Daniel Errampalli, M.D.
Bourbonnais, IL · $3,218 in drug and device payments (2025) · Telehealth · (815) 937-5200
Dr. David Sutherland, M.D.
Bourbonnais, IL · $2,523 in drug and device payments (2025) · Telehealth · (815) 937-5200
Dr. Dhaval Patel, D.O.
Bourbonnais, IL · $2,188 in drug and device payments (2025) · Telehealth · (815) 937-5200
Dr. Matthew Kaplan, DO
Bourbonnais, IL · $686 in drug and device payments (2025) · Telehealth · (815) 602-8253
Dr. Nikhil Bhargava, DO
Bourbonnais, IL · $2,269 in drug and device payments (2025) · Telehealth · (815) 937-5200
Dr. Syed Bokhari, M.D.
Bourbonnais, IL · $116 in drug and device payments (2025) · (815) 937-5200
Dr. Thomas O'connor, M.D.
Bourbonnais, IL · $2,126 in drug and device payments (2025) · Telehealth · (815) 937-5200
Dr. Alan Auerbach, M.D.
Buffalo Grove, IL · $84 in drug and device payments (2025) · (847) 508-1509
Dr. Michael Hersh, MD
Buffalo Grove, IL · $272 in drug and device payments (2025) · (847) 618-9550
Dr. Ajay Bajaj, MD
Burbank, IL · $16,094 in drug and device payments (2025) · Telehealth · (708) 636-0006
Dr. Gopal Popli, M.D.
Burbank, IL · No drug or device payments recorded (2025) · (630) 827-0100
Dr. Carol Semrad, MD
Burr Ridge, IL · No drug or device payments recorded (2025) · (773) 834-4064
Dr. Eugene Chang, MD
Burr Ridge, IL · No drug or device payments recorded (2025) · (773) 834-4064
Dr. Irving Waxman, MD
Burr Ridge, IL · $2,734 in drug and device payments (2025) · (773) 834-4064
Dr. Nancy Reau, MD
Burr Ridge, IL · $49,050 in drug and device payments (2025) · (773) 834-4064
Dr. Sujit Janardhan, M.D., PH. D.
Burr Ridge, IL · $107,986 in drug and device payments (2025) · (773) 702-1150
Dr. Melissa Martinez Mateo, M.D.
Carbondale, IL · $70 in drug and device payments (2025) · (618) 549-5361
Dr. Nader Dababneh, M.D.
Carbondale, IL · $248 in drug and device payments (2025) · (618) 549-5361
Dr. Zahoor Makhdoom, MD
Carbondale, IL · $520 in drug and device payments (2025) · (618) 549-8006
Dr. Asad Rafiq, MD
Carol Stream, IL · $144 in drug and device payments (2025) · (630) 458-5300
Dr. Joseph Lagattuta, MD
Carol Stream, IL · No drug or device payments recorded (2025) · (630) 458-5300
Dr. Stephen Ang, MD
Centralia, IL · $834 in drug and device payments (2025) · (618) 532-1688
Dr. Abuzar Asif, MD
Champaign, IL · $1,149 in drug and device payments (2025) · (217) 366-6162
Dr. Alex Yarbrough, D.O.
Champaign, IL · $2,360 in drug and device payments (2025) · Telehealth · (217) 366-6162
Dr. Claudia Nugent, M.D.
Champaign, IL · No drug or device payments recorded (2025) · (217) 366-6162
Dr. Davendra Ramkumar, M.D.
Champaign, IL · $1,621 in drug and device payments (2025) · Telehealth · (217) 366-6212
Dr. Karen Draper, M.D.
Champaign, IL · $209 in drug and device payments (2025) · Telehealth · (217) 366-6162
Dr. Nalin Patel, M.D.
Champaign, IL · No drug or device payments recorded (2025) · (217) 352-2881
Dr. Qazi Khusro, M.D.
Champaign, IL · $23 in drug and device payments (2025) · (217) 366-5642
Dr. Aaron Goffinet
Chicago, IL · No drug or device payments recorded (2025) · (312) 942-5495
Dr. Aava Khatiwada, MD
Chicago, IL · $1,049 in drug and device payments (2025) · Telehealth · (773) 907-3038
Dr. Abdul Aadam, M.D.
Chicago, IL · $5,869 in drug and device payments (2025) · (312) 926-2000
Dr. Adam Mikolajczyk, M.D.
Chicago, IL · $32 in drug and device payments (2025) · (312) 996-7598

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.