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. Vrushin Patel, DOMount Pleasant, WI · No drug or device payments recorded (2025) ·
(262) 504-3100 Dr. Yagya Dhakal, MDMount Pleasant, WI · No drug or device payments recorded (2025) ·
(262) 308-0447 Dr. Kenneth Israel, MDMt Horeb, WI · No drug or device payments recorded (2025) ·
(608) 437-3064 Dr. William Green, M.D.Mukwonago, WI · No drug or device payments recorded (2025) ·
(262) 363-0960 Dr. Daniel Cheng, M.D.Muskego, WI · No drug or device payments recorded (2025) ·
(262) 928-7000 Dr. Daniel Riordan, D.O.Muskego, WI · No drug or device payments recorded (2025) ·
(262) 928-7000 Dr. James Chapman, M.D.Muskego, WI · No drug or device payments recorded (2025) ·
(262) 928-7000 Dr. Mary Ann Sonsalla, M.D.Muskego, WI · No drug or device payments recorded (2025) ·
(262) 928-7000 Dr. Stephen Dufresne, M.D.Muskego, WI · No drug or device payments recorded (2025) ·
(262) 928-7000 Dr. Steven Mamerow, M.D.Muskego, WI · No drug or device payments recorded (2025) ·
(262) 928-7000 Dr. Curtis Baltz, MDNeenah, WI · No drug or device payments recorded (2025) ·
(920) 725-2070 Dr. Edwin Wilson, MDNeenah, WI · No drug or device payments recorded (2025) ·
(920) 722-3494 Dr. Ifueko Okundaye, MDNeenah, WI · No drug or device payments recorded (2025) ·
(920) 727-4946 Dr. James Burns, MDNeenah, WI · No drug or device payments recorded (2025) ·
(920) 727-4220 Dr. James Mcgovern, MDNeenah, WI · No drug or device payments recorded (2025) ·
(920) 729-2738 Dr. Jennifer Norden, MDNeenah, WI · No drug or device payments recorded (2025) · Telehealth ·
(920) 725-2070 Dr. Kelsey Kienert, M.D.Neenah, WI · No drug or device payments recorded (2025) · Telehealth ·
(920) 720-1463 Dr. Mark Hermans, MDNeenah, WI · No drug or device payments recorded (2025) ·
(920) 729-2738 Dr. Mark Mohr, MDNeenah, WI · No drug or device payments recorded (2025) ·
(920) 727-5810 Dr. Michael Beckett, MDNeenah, WI · No drug or device payments recorded (2025) · Telehealth ·
(920) 729-2070 Dr. Paul Mcavoy, MDNeenah, WI · No drug or device payments recorded (2025) ·
(920) 727-4220 Dr. Ravneet KalekaNeenah, WI · No drug or device payments recorded (2025) ·
(920) 720-8200 Dr. Robert Dedmon, MDNeenah, WI · No drug or device payments recorded (2025) ·
(920) 725-3939 Dr. Roxanne Jadin Cardelli, MDNeenah, WI · No drug or device payments recorded (2025) · Telehealth ·
(920) 720-8200 Dr. Sanjana Boosa ManmohanNeenah, WI · No drug or device payments recorded (2025) ·
(920) 729-3100 Dr. Stephen Bullard, M.D.Neenah, WI · No drug or device payments recorded (2025) ·
(920) 727-4946 Dr. Steven Knaus, MDNeenah, WI · $139 in drug and device payments (2025) · Telehealth ·
(920) 727-9650 Dr. Thomas Duncan, MDNeenah, WI · No drug or device payments recorded (2025) · Telehealth ·
(920) 725-2070 Dr. Todd Talbot, DONeenah, WI · No drug or device payments recorded (2025) ·
(920) 727-4220 Dr. William Nelson, MDNeenah, WI · No drug or device payments recorded (2025) ·
(920) 727-4220 Dr. Matthew Stoflet, MDNeillsville, WI · No drug or device payments recorded (2025) ·
(715) 819-8468 Dr. Timothy Meyer, DONeillsville, WI · No drug or device payments recorded (2025) · Telehealth ·
(715) 743-3101 Dr. Nikos Linardakis, MDNekoosa, WI · No drug or device payments recorded (2025) ·
(715) 213-8855 Dr. Andrew Catanzaro, MDNew Berlin, WI · No drug or device payments recorded (2025) ·
(262) 782-7770 Dr. Beverly Ness, M.D.New Berlin, WI · No drug or device payments recorded (2025) ·
(262) 827-3636 Dr. Christopher Sobczak, MDNew Berlin, WI · No drug or device payments recorded (2025) · Telehealth ·
(262) 798-7200 Dr. Dennis Mannino, M.D.New Berlin, WI · No drug or device payments recorded (2025) ·
(262) 827-3636 Dr. Laura Duncan, MDNew Berlin, WI · No drug or device payments recorded (2025) ·
(262) 827-3636 Dr. Malaika Mathai, M.D.New Berlin, WI · $107 in drug and device payments (2025) ·
(262) 827-3636 Dr. Maryam Shittu, MDNew Berlin, WI · No drug or device payments recorded (2025) ·
(262) 317-9660 Dr. Mohammed Premjee, M.D.New Berlin, WI · $136 in drug and device payments (2025) ·
(262) 827-2995 Dr. Philip Wheatley, MDNew Berlin, WI · No drug or device payments recorded (2025) ·
(262) 860-7800 Dr. Richard Basile, M.D.New Berlin, WI · No drug or device payments recorded (2025) · Telehealth ·
(262) 827-3636 Dr. Robert Williams, MDNew Berlin, WI · No drug or device payments recorded (2025) ·
(262) 827-3636 Dr. Roger Torres, M.D.New Berlin, WI · $3,771 in drug and device payments (2025) · Telehealth ·
(262) 754-8005 Dr. Scott Fenske, M.D.New Berlin, WI · No drug or device payments recorded (2025) ·
(262) 827-3636 Dr. Sirisha Paruchuri, MDNew Berlin, WI · $20 in drug and device payments (2025) · Telehealth ·
(262) 798-7200 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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