Gastroenterology in Naperville, Illinois
Data updated monthly · Last refresh September 2026
23 Gastroenterology providers practice in Naperville. Listings are drawn from federal public records and are not endorsements.
Gastroenterology providers in Naperville
Listed alphabetically. 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. 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 Conditions Gastroenterology providers in Naperville, 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 Naperville, Illinois?There are 23 Gastroenterology providers with active NPI records practicing in Naperville, according to federal NPPES data refreshed monthly.
What conditions do Gastroenterology providers in Naperville treat?Gastroenterology providers in Naperville 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 records 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.
All specialties in Naperville Gastroenterology across Illinois
