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. Logan Stern, DOWausau, WI · No drug or device payments recorded (2025) ·
(715) 847-2121 Dr. Lopa Kabir Islam, MDWausau, WI · No drug or device payments recorded (2025) · Telehealth ·
(715) 847-3251 Dr. Mark Richetto, MDWausau, WI · No drug or device payments recorded (2025) · Telehealth ·
(715) 847-3381 Dr. Mary Freeman, MDWausau, WI · No drug or device payments recorded (2025) ·
(715) 847-2036 Dr. Matthew Clark, MDWausau, WI · No drug or device payments recorded (2025) ·
(715) 847-2004 Dr. Michael Blick, MDWausau, WI · No drug or device payments recorded (2025) ·
(715) 847-2262 Dr. Riccardo Barani, MDWausau, WI · No drug or device payments recorded (2025) ·
(715) 847-2004 Dr. Rick Reding, MDWausau, WI · No drug or device payments recorded (2025) ·
(715) 847-2004 Dr. Solomon Zerga, MDWausau, WI · No drug or device payments recorded (2025) ·
(571) 303-8255 Dr. William Bowler, MDWausau, WI · No drug or device payments recorded (2025) ·
(715) 847-3181 Dr. William Dernbach, MDWausau, WI · No drug or device payments recorded (2025) ·
(715) 847-3271 Dr. Abdul Hafeez, MDWauwatosa, WI · $77 in drug and device payments (2025) ·
(414) 773-6300 Dr. Alissa ZeglinWauwatosa, WI · No drug or device payments recorded (2025) · Telehealth ·
(414) 955-5990 Dr. Andrew Kim, MDWauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 479-1800 Dr. Andrew Mcasey, MDWauwatosa, WI · No drug or device payments recorded (2025) · Telehealth ·
(414) 955-5990 Dr. Anilkumar Doniparthi, MDWauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 777-1811 Dr. Ankur Patel, MDWauwatosa, WI · $399 in drug and device payments (2025) ·
(414) 771-7900 Dr. Ashok Choithani, M.D.Wauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 615-5900 Dr. Bonnie Tesch, M.D.Wauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 771-7900 Dr. Charles Waisbren, MDWauwatosa, WI · $1,875 in drug and device payments (2025) ·
(414) 771-5900 Dr. Connie Desarden, M.D.Wauwatosa, WI · $130 in drug and device payments (2025) ·
(414) 771-7900 Dr. Cristina Blot, M. D.Wauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 771-8228 Dr. Daniel Mui, MDWauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 464-4460 Dr. Daniel Thompson, MDWauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 771-7900 Dr. David Shapiro, MDWauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 464-4460 Dr. Geetha Ganesan, M.D.Wauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 771-7900 Dr. Gerald Ignace, M.D.Wauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 771-8228 Dr. Gregory Buck, MDWauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 771-7900 Dr. James Landisch, MDWauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 771-7900 Dr. Jane Hawes, MDWauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 464-4460 Dr. Jean Switala, MDWauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 771-7900 Dr. Jennifer Macgaffey, MDWauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 771-7900 Dr. Jolanta Pentala, MDWauwatosa, WI · No drug or device payments recorded (2025) · Telehealth ·
(414) 358-5420 Dr. Jordan Krueger, DOWauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 771-7900 Dr. Julie Waisbren, MDWauwatosa, WI · $1,204 in drug and device payments (2025) ·
(414) 771-5900 Dr. Kalpana Ajjampore, MDWauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 773-6300 Dr. Kathleen Schneider, M.D.Wauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 257-2600 Dr. Kathryn Hartmann, M.D.Wauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 456-5990 Dr. Laura Wyer, MDWauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 771-8228 Dr. Mariam EbeidWauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 955-5990 Dr. Mark Horneffer, MDWauwatosa, WI · No drug or device payments recorded (2025) · Telehealth ·
(414) 464-4460 Dr. Michael Lenz, M.D.Wauwatosa, WI · No drug or device payments recorded (2025) · Telehealth ·
(414) 955-5990 Dr. Michele Tschopp, MDWauwatosa, WI · No drug or device payments recorded (2025) · Telehealth ·
(414) 771-7900 Dr. Mohammad Fareed, MDWauwatosa, WI · $50 in drug and device payments (2025) ·
(414) 773-6300 Dr. Raymond Ballecer, MDWauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 771-7900 Dr. Rebecca Stormont, M.D.Wauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 771-7900 Dr. Samantha BenzWauwatosa, WI · No drug or device payments recorded (2025) ·
(262) 409-7234 Dr. Samuel Idarraga, M.D.Wauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 479-1800 Dr. Sarah Marowski-richmond, MDWauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 955-8296 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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