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. Roop Gupta, MDMorton Grove, IL · $147 in drug and device payments (2025) ·
(312) 201-0536 Dr. Aaron Benson, M.D.Mt Prospect, IL · $2,386 in drug and device payments (2025) · Telehealth ·
(847) 725-8401 Dr. Ami Behara, M.D.Mt Prospect, IL · $775 in drug and device payments (2025) · Telehealth ·
(847) 725-8640 Dr. Abhishek Bhandari, M.D.Naperville, IL · No drug or device payments recorded (2025) ·
(630) 527-6450 Dr. Adam Klugman, MDNaperville, IL · $267 in drug and device payments (2025) · Telehealth ·
(630) 717-2600 Dr. Alan Wang, MDNaperville, IL · $109 in drug and device payments (2025) ·
(630) 717-2600 Dr. Darren Kastin, M.D.Naperville, IL · No drug or device payments recorded (2025) ·
(630) 527-6450 Dr. Dinesh Jain, M.D.Naperville, IL · $39 in drug and device payments (2025) ·
(630) 527-6450 Dr. Donald Hoscheit, MDNaperville, IL · $145 in drug and device payments (2025) · Telehealth ·
(630) 717-2600 Dr. George Morgan, M.D.Naperville, IL · No drug or device payments recorded (2025) ·
(630) 717-2600 Dr. Harold Mozwecz, MDNaperville, IL · $112 in drug and device payments (2025) · Telehealth ·
(630) 717-2600 Dr. Jacob Dibattista, MDNaperville, IL · $26 in drug and device payments (2025) ·
(630) 527-6450 Dr. James Abraham, MDNaperville, IL · $2,376 in drug and device payments (2025) ·
(630) 717-2600 Dr. Jamie Oleaga, M.D.Naperville, IL · $557 in drug and device payments (2025) ·
(630) 717-2600 Dr. Kashyap Katwala, MDNaperville, IL · $1,745 in drug and device payments (2025) ·
(630) 717-2600 Dr. Luis Hernandez, MDNaperville, IL · $156 in drug and device payments (2025) ·
(630) 717-2600 Dr. Marc Fallah, MDNaperville, IL · $422 in drug and device payments (2025) ·
(630) 717-2600 Dr. Mark Daniels, M.D.Naperville, IL · No drug or device payments recorded (2025) ·
(630) 355-8000 Dr. Navdeep Chehl, M.D.Naperville, IL · $8,561 in drug and device payments (2025) · Telehealth ·
(630) 717-2600 Dr. Rafael Piedra, MDNaperville, IL · No drug or device payments recorded (2025) ·
(630) 717-2600 Dr. Rafi Ali, M.D.Naperville, IL · $393 in drug and device payments (2025) · Telehealth ·
(630) 717-2600 Dr. Scott Berger, M.D.Naperville, IL · $42 in drug and device payments (2025) ·
(630) 527-6450 Dr. Sidharth Bhandari, D.O.Naperville, IL · $26 in drug and device payments (2025) ·
(630) 527-6450 Dr. Sushama Gundlapalli, M.D.Naperville, IL · $259 in drug and device payments (2025) ·
(630) 527-6450 Dr. Thomas Couri, M.D.Naperville, IL · No drug or device payments recorded (2025) · Telehealth ·
(630) 527-6450 Dr. William Mourad, M.D.Naperville, IL · $312 in drug and device payments (2025) · Telehealth ·
(630) 717-2600 Dr. Rameez Alasadi, MDNew Lenox, IL · $83 in drug and device payments (2025) ·
(815) 300-7764 Dr. Abdul Haseeb, MDNiles, IL · $1,963 in drug and device payments (2025) ·
(847) 318-9595 Dr. Asif Lakha, M.D.Niles, IL · $1,485 in drug and device payments (2025) ·
(847) 318-9595 Dr. Dean Silas, MDNiles, IL · No drug or device payments recorded (2025) · Telehealth ·
(847) 318-9595 Dr. Jeffrey Brasky, D.O.Niles, IL · No drug or device payments recorded (2025) ·
(847) 318-9595 Dr. Jennifer Kang, M.D.Niles, IL · $401 in drug and device payments (2025) · Telehealth ·
(847) 318-9595 Dr. Jorge Aliaga, M.D.Niles, IL · No drug or device payments recorded (2025) ·
(847) 635-7840 Dr. Juan Engel, MDNiles, IL · No drug or device payments recorded (2025) ·
(847) 318-9595 Dr. Madeline Sesselmann, DO Dr. Marc Fine, MDNiles, IL · No drug or device payments recorded (2025) ·
(847) 318-9595 Dr. Robin David, MDNiles, IL · No drug or device payments recorded (2025) ·
(847) 318-9595 Dr. Samir Kakodkar, M.D.Niles, IL · No drug or device payments recorded (2025) · Telehealth ·
(847) 318-9595 Dr. Vijeta Pamudurthy, D.O.Niles, IL · $157 in drug and device payments (2025) · Telehealth ·
(815) 928-6274 Dr. Yannis Lafazanos, DONiles, IL · No drug or device payments recorded (2025) ·
(847) 318-9595 Dr. Herbert Wiser, MDNormal, IL · No drug or device payments recorded (2025) ·
(309) 454-5900 Dr. Philip Koszyk, MDNormal, IL · No drug or device payments recorded (2025) ·
(309) 454-5900 Dr. Stephen Matter, M.D.Normal, IL · $3,302 in drug and device payments (2025) ·
(309) 451-1123 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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