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 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. Lyn Sue KahngChicago, IL · No drug or device payments recorded (2025) ·
(866) 600-2273 Dr. Maham Lodhi, M.D.Chicago, IL · No drug or device payments recorded (2025) · Telehealth ·
(312) 942-5861 Dr. Majd Aboona, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 996-2933 Dr. Malek Ayoub, MDChicago, IL · $101 in drug and device payments (2025) ·
(773) 795-1824 Dr. Manish Dhamija, M.D.Chicago, IL · $2,122 in drug and device payments (2025) · Telehealth ·
(773) 281-5818 Dr. Maria El Gemayel, MDChicago, IL · No drug or device payments recorded (2025) ·
(866) 600-2273 Dr. Maria Ferreira, MDChicago, IL · No drug or device payments recorded (2025) · Telehealth ·
(312) 695-5620 Dr. Mark Demeo, M.D.Chicago, IL · No drug or device payments recorded (2025) · Telehealth ·
(312) 942-5861 Dr. Marshall Sparberg, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(312) 944-7080 Dr. Mary Atten, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(312) 864-6000 Dr. Mary Biglin, MDChicago, IL · No drug or device payments recorded (2025) · Telehealth ·
(312) 996-6651 Dr. Mary Rinella, MDChicago, IL · $81,361 in drug and device payments (2025) · Telehealth ·
(312) 695-9797 Dr. Matthew Eganhouse, MDChicago, IL · $617 in drug and device payments (2025) ·
(312) 996-2933 Dr. Melchor Demetria, M.D.Chicago, IL · $175 in drug and device payments (2025) ·
(312) 864-3251 Dr. Melvin Goldstein, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(312) 337-1556 Dr. Meredith Yellen, MDChicago, IL · $193 in drug and device payments (2025) ·
(773) 795-1824 Dr. Mervyn Weis, MDChicago, IL · No drug or device payments recorded (2025) ·
(773) 769-4411 Dr. Michael Brown, M.D.Chicago, IL · $162 in drug and device payments (2025) · Telehealth ·
(312) 942-5861 Dr. Michael Chiorean, MDChicago, IL · $279,278 in drug and device payments (2025) · Telehealth ·
(888) 824-0200 Dr. Michael Flicker, M.D.Chicago, IL · $2,257 in drug and device payments (2025) · Telehealth ·
(773) 281-5818 Dr. Michael Ruchim, M.D.Chicago, IL · No drug or device payments recorded (2025) · Telehealth ·
(312) 503-6000 Dr. Mohammad Fayyaz, MDChicago, IL · $135 in drug and device payments (2025) ·
(312) 996-3800 Dr. Mohammad Khan, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 224-8764 Dr. Mona Lalehzari, MDChicago, IL · $1,926 in drug and device payments (2025) · Telehealth ·
(773) 281-5818 Dr. Muhammed Alikhan, MDChicago, IL · $214 in drug and device payments (2025) ·
(312) 563-2782 Dr. Nabeel Wahid, MDChicago, IL · $492 in drug and device payments (2025) ·
(312) 926-2000 Dr. Nathaniel Cohen, MDChicago, IL · No drug or device payments recorded (2025) ·
(773) 702-6073 Dr. Navneet Natt, MDChicago, IL · No drug or device payments recorded (2025) ·
(647) 989-4248 Dr. Neal MehtaChicago, IL · $18,149 in drug and device payments (2025) ·
(312) 942-5861 Dr. Neil SenguptaChicago, IL · No drug or device payments recorded (2025) · Telehealth ·
(888) 824-0200 Dr. Nidhi Singh, M.D.Chicago, IL · No drug or device payments recorded (2025) · Telehealth ·
(312) 926-6000 Dr. Nikunj Shah, MDChicago, IL · No drug or device payments recorded (2025) · Telehealth ·
(312) 413-9037 Dr. Nimrod Deiss-yehiely, MDChicago, IL · No drug or device payments recorded (2025) · Telehealth ·
(773) 702-1000 Dr. Nina GuptaChicago, IL · $228 in drug and device payments (2025) · Telehealth ·
(888) 824-0200 Dr. Nirmala Gonsalves, MDChicago, IL · $66,333 in drug and device payments (2025) · Telehealth ·
(312) 695-4022 Dr. Noa ClevelandChicago, IL · $6,455 in drug and device payments (2025) ·
(888) 824-0200 Dr. Nolan Faust, MDChicago, IL · $2,444 in drug and device payments (2025) · Telehealth ·
(773) 907-3038 Dr. Ofer Fass, MDChicago, IL · $3,329 in drug and device payments (2025) · Telehealth ·
(312) 695-5620 Dr. Omar Ahmed, MBBCHChicago, IL · No drug or device payments recorded (2025) ·
(312) 996-7598 Dr. Omar Jamil, MDChicago, IL · $28 in drug and device payments (2025) · Telehealth ·
(773) 702-3075 Dr. Omar Nehme, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 942-5861 Dr. Ophir Gilad, MDChicago, IL · $101 in drug and device payments (2025) ·
(773) 795-1824 Dr. Oscar Rivas Chicas, M.D. Dr. Parambir Dulai, M.B.B.SChicago, IL · $180,399 in drug and device payments (2025) · Telehealth ·
(312) 695-5620 Dr. Paul Fahrenbach, MDChicago, IL · No drug or device payments recorded (2025) ·
(773) 631-2728 Dr. Paul SchlesingerChicago, IL · No drug or device payments recorded (2025) ·
(866) 600-2273 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.
- Acid reflux
- IBS
- Crohn disease
- Ulcerative colitis
- Celiac disease
- Colon cancer screening
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.
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