Internal Medicine Doctors in Wisconsin
Data updated monthly · Last refresh October 2026
2,081 Internal Medicine providers practice in Wisconsin, including 377 (18%) offering telehealth. The largest concentration is in Madison. 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.
2,081providers
377telehealth
Madisontop city
Internal Medicine by city in Wisconsin
Choose a city to see providers there.
Internal Medicine 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. Faisal Anwar, M.D.Baldwin, WI · No drug or device payments recorded (2025) ·
(715) 684-1111 Dr. Nilin Raj, M.D.Baldwin, WI · $19 in drug and device payments (2025) · Telehealth ·
(715) 684-1111 Dr. Danny Sessler, MDBaraboo, WI · No drug or device payments recorded (2025) ·
(608) 355-3800 Dr. Mark Fuller, MDBayfield, WI · No drug or device payments recorded (2025) ·
(715) 779-3707 Dr. Mark Skier, M.D.Bayview, WI · No drug or device payments recorded (2025) ·
(414) 486-1900 Dr. Thomas Brand, M.D.Bayview, WI · No drug or device payments recorded (2025) ·
(414) 486-1900 Dr. Amy Muchow, MDBeaver Dam, WI · No drug or device payments recorded (2025) · Telehealth ·
(920) 887-9272 Dr. George Schneider, MDBeaver Dam, WI · No drug or device payments recorded (2025) ·
(920) 887-3102 Dr. Kenneth Kuehnl, MDBeaver Dam, WI · No drug or device payments recorded (2025) ·
(920) 885-3369 Dr. Marc Gladden, D.O.Beaver Dam, WI · No drug or device payments recorded (2025) · Telehealth ·
(920) 887-9272 Dr. Mesfin Abera, M.D.Beaver Dam, WI · No drug or device payments recorded (2025) ·
(920) 887-7181 Dr. Patrick Leonberger, D.O.Beaver Dam, WI · No drug or device payments recorded (2025) ·
(314) 517-8214 Dr. Sharon Haase, MDBeaver Dam, WI · No drug or device payments recorded (2025) ·
(920) 210-9033 Dr. William Bull, MDBeaver Dam, WI · No drug or device payments recorded (2025) ·
(920) 887-9272 Dr. Annabelle Tolentino, MD.Beloit, WI · No drug or device payments recorded (2025) ·
(608) 364-2240 Dr. George Jones, MDBeloit, WI · No drug or device payments recorded (2025) ·
(608) 364-5971 Dr. James Miller, MDBeloit, WI · No drug or device payments recorded (2025) ·
(608) 364-2293 Dr. Kenneth Gold, MDBeloit, WI · No drug or device payments recorded (2025) ·
(608) 364-2200 Dr. Leland From, MDBeloit, WI · No drug or device payments recorded (2025) ·
(608) 363-5985 Dr. Pawel Olszewski, MDBeloit, WI · No drug or device payments recorded (2025) ·
(608) 364-2200 Dr. Ronald Kodras, MDBeloit, WI · No drug or device payments recorded (2025) ·
(608) 364-2200 Dr. William Fitzgerald, MDBeloit, WI · No drug or device payments recorded (2025) ·
(608) 364-2200 Dr. Anthony Racki, MDBerlin, WI · No drug or device payments recorded (2025) ·
(920) 361-5760 Dr. Jeffrey Carroll, MDBerlin, WI · No drug or device payments recorded (2025) ·
(920) 361-5760 Dr. Scott Hetzel, MDBerlin, WI · No drug or device payments recorded (2025) ·
(920) 361-5770 Dr. Steven Blaha, MDBerlin, WI · No drug or device payments recorded (2025) ·
(920) 361-5760 Dr. Thomas Walker, MDBlack River Falls, WI · No drug or device payments recorded (2025) ·
(715) 284-9851 Dr. Celestine Odenigbo, M.D.Bloomer, WI · No drug or device payments recorded (2025) ·
(715) 568-2000 Dr. Patrick Schweiger, MDBoscobel, WI · No drug or device payments recorded (2025) ·
(608) 375-4112 Dr. Thomas Chweh, MDBoscobel, WI · No drug or device payments recorded (2025) ·
(608) 375-4112 Dr. Thomas Pelz, DOBoscobel, WI · No drug or device payments recorded (2025) ·
(608) 375-2424 Dr. Michael Lundin, M.D.Bowler, WI · No drug or device payments recorded (2025) ·
(715) 793-4144 Dr. Andrea Woodard, M.D.Brookfield, WI · No drug or device payments recorded (2025) · Telehealth ·
(262) 532-8300 Dr. Anna EdlebeckBrookfield, WI · $20 in drug and device payments (2025) · Telehealth ·
(262) 532-8300 Dr. Aysha Schaper, MDBrookfield, WI · No drug or device payments recorded (2025) · Telehealth ·
(414) 805-9600 Dr. Barbara Horner-ibler, MDBrookfield, WI · No drug or device payments recorded (2025) ·
(262) 754-1421 Dr. Christopher Lieb, MDBrookfield, WI · No drug or device payments recorded (2025) ·
(262) 785-3010 Dr. Daniel Forward, M.D.Brookfield, WI · No drug or device payments recorded (2025) ·
(414) 302-5400 Dr. Daniel Tanty, MDBrookfield, WI · No drug or device payments recorded (2025) ·
(262) 790-1118 Dr. Daryl Melzer, M.D.Brookfield, WI · No drug or device payments recorded (2025) ·
(414) 302-5404 Dr. Donald Carr, MDBrookfield, WI · No drug or device payments recorded (2025) ·
(414) 302-5400 Dr. Donald Roach, M.D.Brookfield, WI · No drug or device payments recorded (2025) ·
(414) 302-5400 Dr. Douglas Brown, M.D.Brookfield, WI · No drug or device payments recorded (2025) ·
(262) 797-6770 Dr. Eugene Burke, M.D.Brookfield, WI · No drug or device payments recorded (2025) ·
(262) 928-7100 Dr. Gregory Spielbauer, MDBrookfield, WI · $691 in drug and device payments (2025) · Telehealth ·
(262) 782-4270 Dr. Jeffrey Postles, M.D.Brookfield, WI · No drug or device payments recorded (2025) ·
(414) 302-5400 Dr. John Basich, M.D.Brookfield, WI · No drug or device payments recorded (2025) ·
(414) 641-8400 Conditions Internal Medicine providers in Wisconsin commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Internal Medicine providers. Individual practices vary, so confirm with the provider before booking.
- High blood pressure
- Type 2 diabetes
- High cholesterol
- Preventive care
- Chronic disease management
Common questions
How many Internal Medicine providers are in Wisconsin?There are 2,081 Internal Medicine providers with active NPI records practicing in Wisconsin, according to federal NPPES data refreshed monthly.
Do Internal Medicine providers in Wisconsin offer telehealth?Yes. 377 of the 2,081 Internal Medicine providers in Wisconsin (about 18%) report offering telehealth services in CMS data.
Which cities in Wisconsin have the most Internal Medicine providers?Madison (411), Milwaukee (383), La Crosse (113) have the highest concentration of Internal Medicine providers in Wisconsin.
How many Internal Medicine providers in Wisconsin received drug or device company payments?350 of 2,081 Internal Medicine providers in Wisconsin (17%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Internal Medicine providers in Wisconsin treat?Internal Medicine providers commonly treat high blood pressure, type 2 diabetes, high cholesterol, preventive care, chronic disease management 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 Internal Medicine Doctors in Wisconsin work in independent practices or large health systems?Among 984 Internal Medicine Doctors in Wisconsin enrolled in Medicare, 4% bill through a solo or small practice with fewer than 10 clinicians, 11% through a mid-size group of 10 to 99, and 85% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Internal Medicine Doctors in Wisconsin work at?According to CMS facility affiliation records, the Wisconsin hospitals where the most Internal Medicine Doctors hold privileges are University of Wi Hospitals & Clinics Authority in Madison; Froedtert Memorial Lutheran Hospital in Milwaukee; Aurora St Lukes Medical Center in Milwaukee.
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