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.
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| Gastroenterology in Milwaukee | 100 providers |
| Gastroenterology in Madison | 62 providers |
| Gastroenterology in Eau Claire | 20 providers |
| Gastroenterology in La Crosse | 18 providers |
| Gastroenterology in Green Bay | 18 providers |
| Gastroenterology in Wausau | 11 providers |
| Gastroenterology in Mequon | 9 providers |
| Gastroenterology in Marshfield | 9 providers |
| Gastroenterology in Sheboygan | 7 providers |
| Gastroenterology in Oshkosh | 6 providers |
| Gastroenterology in Kenosha | 5 providers |
| Gastroenterology in Beloit | 5 providers |
| Gastroenterology in Menomonee Falls | 5 providers |
| Gastroenterology in Fond Du Lac | 4 providers |
| Gastroenterology in Janesville | 4 providers |
| Gastroenterology in West Allis | 4 providers |
| Gastroenterology in Monroe | 3 providers |
| Gastroenterology in Ashland | 3 providers |
| Gastroenterology in Weston | 3 providers |
| Gastroenterology in Summit | 3 providers |
| Gastroenterology in Waukesha | 3 providers |
| Gastroenterology in Manitowoc | 3 providers |
| Gastroenterology in Wauwatosa | 3 providers |
| Gastroenterology in Cudahy | 3 providers |
From CMS Medicare enrollment records covering 216 of the 341 providers listed here (63%). Providers who do not bill Medicare are not included in these figures.
| Group (as registered with Medicare) | Gastroenterologists | All clinicians in group | Main city |
| University of Wisconsin Medical Foundation Inc. | 31 | 2,537 | Madison |
| Gi Associates LLC | 30 | 55 | Milwaukee |
| Aurora Medical Group, Inc.. | 25 | 3,764 | Kenosha |
| The Medical College of Wisconsin Inc. | 21 | 2,092 | Milwaukee |
| Aurora Advanced Healthcare, Inc.. | 17 | 1,107 | Milwaukee |
| Hospital | City | Ownership | CMS star rating | Gastroenterologists affiliated |
| Aurora St Lukes Medical Center | Milwaukee | Nonprofit | 4 of 5 | 36 |
| University of Wi Hospitals & Clinics Authority | Madison | Government | 5 of 5 | 32 |
| Unitypoint Health - Meriter | Madison | Nonprofit | 5 of 5 | 26 |
| Froedtert Memorial Lutheran Hospital | Milwaukee | Nonprofit | 3 of 5 | 24 |
| Ascension Se Wisconsin Hospital | Milwaukee | Nonprofit | 5 of 5 | 24 |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
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.
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.
There are 341 Gastroenterology providers with active NPI records practicing in Wisconsin, according to federal NPPES data refreshed monthly.
Yes. 82 of the 341 Gastroenterology providers in Wisconsin (about 24%) report offering telehealth services in CMS data.
Milwaukee (100), Madison (62), Eau Claire (20) have the highest concentration of Gastroenterology providers in Wisconsin.
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.
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.
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.
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.
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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