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. Kamyar Haghayeghi, D.O.Eau Claire, WI · No drug or device payments recorded (2025) ·
(715) 838-5222 Dr. Kevin Wergeland, MDEau Claire, WI · No drug or device payments recorded (2025) · Telehealth ·
(715) 838-5222 Dr. Kristal Ragbir-toolsie, MDEau Claire, WI · No drug or device payments recorded (2025) ·
(715) 858-4500 Dr. Kristine Reesman, DOEau Claire, WI · No drug or device payments recorded (2025) ·
(715) 839-9280 Dr. Kristin Severson, DOEau Claire, WI · No drug or device payments recorded (2025) ·
(715) 839-9280 Dr. Lawrence Sprecher, MDEau Claire, WI · No drug or device payments recorded (2025) ·
(715) 838-5222 Dr. Mark Edstrom, MDEau Claire, WI · No drug or device payments recorded (2025) ·
(715) 838-5222 Dr. Martha Hidalgo, MDEau Claire, WI · $95 in drug and device payments (2025) · Telehealth ·
(715) 858-4500 Dr. Matthew Cove, MDEau Claire, WI · No drug or device payments recorded (2025) ·
(715) 838-5222 Dr. Michaela Mckissack-huynh, MDEau Claire, WI · $252 in drug and device payments (2025) ·
(715) 838-5222 Dr. Michael Gonzaga, MDEau Claire, WI · No drug or device payments recorded (2025) ·
(715) 858-4700 Dr. Michael Smith, M.D.Eau Claire, WI · $1,078 in drug and device payments (2025) ·
(715) 830-9990 Dr. Morris Pasternack, MDEau Claire, WI · No drug or device payments recorded (2025) ·
(715) 838-5222 Dr. Musa Suleiman, MDEau Claire, WI · No drug or device payments recorded (2025) ·
(715) 858-4500 Dr. Mythri Kowlumane Laxminarayana, M.DEau Claire, WI · No drug or device payments recorded (2025) · Telehealth ·
(715) 838-5222 Dr. Peter Halverson, MDEau Claire, WI · No drug or device payments recorded (2025) · Telehealth ·
(715) 838-5222 Dr. Peter Wagner, MDEau Claire, WI · No drug or device payments recorded (2025) ·
(715) 838-3240 Dr. Rebecca Kallunki, MDEau Claire, WI · No drug or device payments recorded (2025) ·
(715) 838-5222 Dr. Richard Horecki, MDEau Claire, WI · No drug or device payments recorded (2025) ·
(715) 838-5222 Dr. Roger Resar, MDEau Claire, WI · No drug or device payments recorded (2025) ·
(715) 838-5222 Dr. Saleha Chaudhry, MDEau Claire, WI · $116 in drug and device payments (2025) ·
(715) 838-5222 Dr. Sandra Frohling, MDEau Claire, WI · No drug or device payments recorded (2025) · Telehealth ·
(715) 838-5025 Dr. Seema Rahman, MDEau Claire, WI · No drug or device payments recorded (2025) · Telehealth ·
(715) 858-4700 Dr. Shahin Shahnia, M.D.Eau Claire, WI · No drug or device payments recorded (2025) ·
(715) 834-1555 Dr. Stephen Rogers, MDEau Claire, WI · No drug or device payments recorded (2025) ·
(715) 838-5222 Dr. Steven Weiss, MDEau Claire, WI · No drug or device payments recorded (2025) ·
(715) 838-5222 Dr. Taiwo Kanu, MDEau Claire, WI · No drug or device payments recorded (2025) · Telehealth ·
(715) 838-5222 Dr. Thiyagarajan Thangavelu, M.D.Eau Claire, WI · No drug or device payments recorded (2025) ·
(715) 838-5222 Dr. Victoria Vande Zande, MDEau Claire, WI · No drug or device payments recorded (2025) ·
(715) 717-4944 Dr. Wendy Mcdermott, MDEau Claire, WI · No drug or device payments recorded (2025) ·
(715) 838-5222 Dr. Willie Pangilinan, MDEau Claire, WI · No drug or device payments recorded (2025) ·
(715) 834-1555 Dr. Rajvinder Bindra, MDEdgerton, WI · No drug or device payments recorded (2025) ·
(608) 884-3441 Dr. Lakshmi Deep, MDElcho, WI · No drug or device payments recorded (2025) ·
(715) 275-4011 Dr. Nancy Good, MDElcho, WI · No drug or device payments recorded (2025) ·
(715) 275-4011 Dr. Rossana Madamba, MDElkhorn, WI · No drug or device payments recorded (2025) ·
(262) 741-2671 Dr. Brooke Crotty, M.D.Elm Grove, WI · No drug or device payments recorded (2025) ·
(304) 951-3223 Dr. Daniel Lopez-tan, MDElm Grove, WI · No drug or device payments recorded (2025) ·
(262) 879-8014 Dr. Matthew Mouser, MDFergus Falls, WI · No drug or device payments recorded (2025) · Telehealth ·
(218) 736-8000 Dr. Dejan VrtikapaFitchburg, WI · $10,163 in drug and device payments (2025) ·
(999) 999-9999 Dr. Patricia Kraemer, M.D.Fitchburg, WI · No drug or device payments recorded (2025) ·
(608) 227-7007 Dr. Rachael Ziska, D.O.Fitchburg, WI · No drug or device payments recorded (2025) · Telehealth ·
(608) 661-7200 Dr. Wendy Adams, MDFitchburg, WI · No drug or device payments recorded (2025) ·
(608) 276-4660 Dr. Adam Karewicz, MDFond Du Lac, WI · No drug or device payments recorded (2025) · Telehealth ·
(920) 926-8420 Dr. Balvindar Sareen, MDFond Du Lac, WI · No drug or device payments recorded (2025) ·
(315) 637-7800 Dr. Dana Vasquez, MDFond Du Lac, WI · No drug or device payments recorded (2025) ·
(920) 926-8420 Dr. E Ayala, MDFond Du Lac, WI · No drug or device payments recorded (2025) ·
(920) 921-0560 Dr. Gabriel Litman, MDFond Du Lac, WI · No drug or device payments recorded (2025) ·
(920) 907-7000 Dr. Jay Muller, MDFond Du Lac, WI · No drug or device payments recorded (2025) ·
(920) 926-8420 Dr. Joseph Marik, MDFond Du Lac, WI · No drug or device payments recorded (2025) ·
(920) 926-8420 Dr. Josue Flores Balderas, M.D.Fond Du Lac, WI · No drug or device payments recorded (2025) ·
(920) 907-7000 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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