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Gastroenterologists in Wisconsin

Data updated monthly · Last refresh October 2026

341 Gastroenterology providers practice in Wisconsin, including 82 (24%) offering telehealth. The largest concentration is in Milwaukee. 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.

341providers
82telehealth
Milwaukeetop city

Gastroenterology by city in Wisconsin

Choose a city to see providers there.

Gastroenterology in Milwaukee100 providers
Gastroenterology in Madison62 providers
Gastroenterology in Eau Claire20 providers
Gastroenterology in La Crosse18 providers
Gastroenterology in Green Bay18 providers
Gastroenterology in Wausau11 providers
Gastroenterology in Mequon9 providers
Gastroenterology in Marshfield9 providers
Gastroenterology in Sheboygan7 providers
Gastroenterology in Oshkosh6 providers
Gastroenterology in Kenosha5 providers
Gastroenterology in Beloit5 providers
Gastroenterology in Menomonee Falls5 providers
Gastroenterology in Fond Du Lac4 providers
Gastroenterology in Janesville4 providers
Gastroenterology in West Allis4 providers
Gastroenterology in Monroe3 providers
Gastroenterology in Ashland3 providers
Gastroenterology in Weston3 providers
Gastroenterology in Summit3 providers
Gastroenterology in Waukesha3 providers
Gastroenterology in Manitowoc3 providers
Gastroenterology in Wauwatosa3 providers
Gastroenterology in Cudahy3 providers

Gastroenterology providers in Wisconsin

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. Chad Stepke, MD
Milwaukee, WI · $23 in drug and device payments (2025) · (414) 226-4020
Dr. Charles Cromwell, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 319-3000
Dr. Charlotte Hunt
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 219-4077
Dr. Chetan Mittal, MD
Milwaukee, WI · $236 in drug and device payments (2025) · (414) 908-6506
Dr. Cristino Canga, MD
Milwaukee, WI · $426 in drug and device payments (2025) · Telehealth · (414) 908-6500
Dr. Daniel Geenen, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 908-6615
Dr. Daniel Stein, M.D.
Milwaukee, WI · $14,792 in drug and device payments (2025) · Telehealth · (414) 955-6845
Dr. David Carron, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 908-6506
Dr. David Staff, M.D.
Milwaukee, WI · $64 in drug and device payments (2025) · (414) 908-6506
Dr. Dilpesh Agrawal, M.D, MRCP
Milwaukee, WI · $2,366 in drug and device payments (2025) · Telehealth · (414) 955-6830
Dr. Elizabeth Sprague, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 908-6500
Dr. Emilie Regner, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 805-3310
Dr. Erica Samuel, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 908-6506
Dr. Francis Edeani, MD
Milwaukee, WI · No drug or device payments recorded (2025) · Telehealth · (414) 805-3824
Dr. Franklin Loo, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 649-3750
Dr. George Johnson, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 955-6895
Dr. Gokulakrishnan Balasubramanian, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · Telehealth · (414) 805-3310
Dr. Gregory Capelli, DO
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 219-4077
Dr. Hanna Bayisa, MD
Milwaukee, WI · No drug or device payments recorded (2025) · Telehealth · (414) 805-3310
Dr. Helen Lantz, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 908-6506
Dr. Helmut Ammon, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 955-6895
Dr. Ismail Elkhattib, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 805-3310
Dr. Jacob Laine, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 908-6506
Dr. Jamal Qureshi, MD
Milwaukee, WI · $322 in drug and device payments (2025) · (414) 908-6506
Dr. James Kwiatt, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 908-6506
Dr. James Nelson, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 805-3310
Dr. James Philip Esteban, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 805-0516
Dr. Jason Browne, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 908-6506
Dr. Jeffrey Weber, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 649-3750
Dr. John Bjork, M.D.
Milwaukee, WI · $23 in drug and device payments (2025) · (414) 955-6830
Dr. Jose Franco, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 805-2901
Dr. Joseph Geenen, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 908-6500
Dr. Joseph Kim, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 908-6500
Dr. Julia Leo, D.O.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 908-6500
Dr. Kathryn Byrne, M.D.
Milwaukee, WI · $170 in drug and device payments (2025) · Telehealth · (414) 955-6895
Dr. Khaled Alsabbagh Alchirazi, MD
Milwaukee, WI · $144 in drug and device payments (2025) · (414) 219-4077
Dr. Kia Saeian, MD
Milwaukee, WI · $30 in drug and device payments (2025) · Telehealth · (414) 805-2901
Dr. Kulwinder Dua, MD
Milwaukee, WI · $492 in drug and device payments (2025) · (414) 805-3666
Dr. Ling Mei
Milwaukee, WI · No drug or device payments recorded (2025) · Telehealth · (414) 955-6830
Dr. Lyndon Hernandez, MD
Milwaukee, WI · $640 in drug and device payments (2025) · (414) 908-6506
Dr. Maria Rivera, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 908-6500
Dr. Mario Velez, MD
Milwaukee, WI · $24 in drug and device payments (2025) · (414) 908-6506
Dr. Matthew Mohorek, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 908-6506
Dr. Matthew Peller, MD
Milwaukee, WI · $415 in drug and device payments (2025) · Telehealth · (414) 805-3310
Dr. Maurice Chung, M.D.
Milwaukee, WI · $163 in drug and device payments (2025) · (414) 319-3000
Dr. Michael Schmalz, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 908-6601
Dr. Mohammad Abuassi, M.D.
Milwaukee, WI · $31 in drug and device payments (2025) · (414) 955-8296
Dr. Nalini Guda, MD
Milwaukee, WI · $11,886 in drug and device payments (2025) · (414) 908-6500
Dr. Nathaniel Jest, D.O.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 908-6506
Dr. Nicole Griglione, M.D.
Milwaukee, WI · $24 in drug and device payments (2025) · (414) 908-6506

Conditions Gastroenterology providers in Wisconsin 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 Wisconsin?

There are 341 Gastroenterology providers with active NPI records practicing in Wisconsin, according to federal NPPES data refreshed monthly.

Do Gastroenterology providers in Wisconsin offer telehealth?

Yes. 82 of the 341 Gastroenterology providers in Wisconsin (about 24%) report offering telehealth services in CMS data.

Which cities in Wisconsin have the most Gastroenterology providers?

Milwaukee (100), Madison (62), Eau Claire (20) have the highest concentration of Gastroenterology providers in Wisconsin.

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

123 of 341 Gastroenterology providers in Wisconsin (36%) 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 Wisconsin 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 Wisconsin work in independent practices or large health systems?

Among 216 Gastroenterologists in Wisconsin enrolled in Medicare, 3% bill through a solo or small practice with fewer than 10 clinicians, 16% through a mid-size group of 10 to 99, and 81% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Gastroenterologists in Wisconsin work at?

According to CMS facility affiliation records, the Wisconsin hospitals where the most Gastroenterologists hold privileges are Aurora St Lukes Medical Center in Milwaukee; University of Wi Hospitals & Clinics Authority in Madison; Unitypoint Health - Meriter in Madison.

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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 Wisconsin? Get featured.