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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 in Madison411 providers
Internal Medicine in Milwaukee383 providers
Internal Medicine in La Crosse113 providers
Internal Medicine in Green Bay68 providers
Internal Medicine in Marshfield65 providers
Internal Medicine in Eau Claire55 providers
Internal Medicine in Wauwatosa45 providers
Internal Medicine in Menomonee Falls42 providers
Internal Medicine in Waukesha41 providers
Internal Medicine in Appleton40 providers
Internal Medicine in Brookfield40 providers
Internal Medicine in West Allis32 providers
Internal Medicine in Kenosha31 providers
Internal Medicine in Wausau26 providers
Internal Medicine in Mequon25 providers
Internal Medicine in Oshkosh25 providers
Internal Medicine in Neenah23 providers
Internal Medicine in Janesville22 providers
Internal Medicine in Sheboygan22 providers
Internal Medicine in Fond Du Lac19 providers
Internal Medicine in Grafton19 providers
Internal Medicine in Racine17 providers
Internal Medicine in West Bend17 providers
Internal Medicine in New Berlin17 providers

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. Joseph Pfotenhauer, MD
Hartford, WI · No drug or device payments recorded (2025) · (262) 670-4000
Dr. Beth Keefe, M.D.
Hartland, WI · No drug or device payments recorded (2025) · Telehealth · (262) 369-7040
Dr. Daihanara Cintron-lafontaine, M.D.
Hartland, WI · $14 in drug and device payments (2025) · (262) 401-9007
Dr. Fawad Khan, MD
Hartland, WI · $64 in drug and device payments (2025) · Telehealth · (262) 369-7040
Dr. Mary Geralts, MD
Hartland, WI · No drug or device payments recorded (2025) · (262) 369-6902
Dr. Vincent Borkowski, MD, PHD
Hartland, WI · No drug or device payments recorded (2025) · Telehealth · (262) 369-7040
Dr. Wiaam Taha, M.D.
Hartland, WI · No drug or device payments recorded (2025) · (262) 369-7040
Dr. Todd Earnhart, MD
Hewitt, WI · No drug or device payments recorded (2025) · (715) 384-2138
Dr. Annette Faller, MD
Holmen, WI · No drug or device payments recorded (2025) · (608) 526-3351
Dr. David Hess, M.D.
Hudson, WI · No drug or device payments recorded (2025) · Telehealth · (715) 531-6700
Dr. Jacqueline Dsouza, M.D.
Hudson, WI · No drug or device payments recorded (2025) · (715) 531-6800
Dr. Leslie Surbeck, MD
Hudson, WI · $47 in drug and device payments (2025) · (715) 531-6700
Dr. Ifeoma Nwoye, MD
Hurley, WI · No drug or device payments recorded (2025) · (715) 561-2255
Dr. Amin Lakhdhir, M.D.
Janesville, WI · No drug or device payments recorded (2025) · (608) 741-2430
Dr. Andrea Tarjan, M.D.
Janesville, WI · No drug or device payments recorded (2025) · (608) 754-2830
Dr. Dale Miller, MD
Janesville, WI · No drug or device payments recorded (2025) · (608) 371-8000
Dr. Daniel Nunez
Janesville, WI · No drug or device payments recorded (2025) · Telehealth · (608) 371-8000
Dr. Denise Hunter, MD
Janesville, WI · No drug or device payments recorded (2025) · (608) 741-2430
Dr. Hafiz Khalid
Janesville, WI · $156 in drug and device payments (2025) · (608) 756-6868
Dr. Harry Ramsey, MD
Janesville, WI · No drug or device payments recorded (2025) · (608) 371-8000
Dr. Hassan Homida, MD
Janesville, WI · $454 in drug and device payments (2025) · (608) 756-6868
Dr. Hena Kausar, M.D
Janesville, WI · $18 in drug and device payments (2025) · (608) 322-2405
Dr. Hyung Kim, MD
Janesville, WI · No drug or device payments recorded (2025) · (608) 756-6000
Dr. Kathryn Lilley, MD
Janesville, WI · No drug or device payments recorded (2025) · (608) 371-8000
Dr. Kauseruzzaman Khan, MD
Janesville, WI · No drug or device payments recorded (2025) · (608) 756-7100
Dr. Kristine Arndt, MD
Janesville, WI · No drug or device payments recorded (2025) · Telehealth · (608) 756-7100
Dr. Laura Simon, MD
Janesville, WI · No drug or device payments recorded (2025) · (608) 756-7100
Dr. Maria Fassari, MD
Janesville, WI · No drug or device payments recorded (2025) · (608) 373-8000
Dr. Mark Angevine, MD
Janesville, WI · No drug or device payments recorded (2025) · (608) 756-7100
Dr. Mark Menet, MD
Janesville, WI · No drug or device payments recorded (2025) · (608) 756-6261
Dr. Muhammad Alkhan, MD
Janesville, WI · No drug or device payments recorded (2025) · (608) 756-6800
Dr. Nader Honarkhah, MD
Janesville, WI · No drug or device payments recorded (2025) · (608) 756-7100
Dr. Nancy Rainiero, MD
Janesville, WI · No drug or device payments recorded (2025) · Telehealth · (608) 371-8000
Dr. Ryndon Bautista, M.D.
Janesville, WI · No drug or device payments recorded (2025) · (608) 756-7100
Dr. Stanley Gruhn, MD
Janesville, WI · No drug or device payments recorded (2025) · (608) 755-3500
Dr. Guillermo Valenzuela Cortez, MD
Johnson Creek, WI · $4,860 in drug and device payments (2025) · (920) 699-4245
Dr. Andrew Pahl, M.D.
Kaukauna, WI · No drug or device payments recorded (2025) · (920) 830-5900
Dr. Annette Hull, MD
Kenosha, WI · $253 in drug and device payments (2025) · (262) 551-4600
Dr. Bogdan Pudzisz, M.D.
Kenosha, WI · No drug or device payments recorded (2025) · (262) 948-7000
Dr. Catherine Gursky, D.O.
Kenosha, WI · $21 in drug and device payments (2025) · (414) 290-6720
Dr. Chigozie Nweke, MD
Kenosha, WI · No drug or device payments recorded (2025) · (630) 371-0133
Dr. Diana David, MD
Kenosha, WI · No drug or device payments recorded (2025) · (262) 948-6790
Dr. Ernesto Buencamino, MD
Kenosha, WI · No drug or device payments recorded (2025) · (262) 658-1678
Dr. Geetha Bandealy, MD
Kenosha, WI · No drug or device payments recorded (2025) · (262) 948-7000
Dr. Gladys Hollant, M.D.
Kenosha, WI · No drug or device payments recorded (2025) · (262) 653-9286
Dr. Ikram Rashid, MD
Kenosha, WI · No drug or device payments recorded (2025) · (262) 948-6640
Dr. John Lopez, M.D.
Kenosha, WI · No drug or device payments recorded (2025) · (262) 948-7000
Dr. Kelly Heidle, D.O.
Kenosha, WI · No drug or device payments recorded (2025) · (414) 290-6720
Dr. Kristen Chavez, DO
Kenosha, WI · No drug or device payments recorded (2025) · Telehealth · (262) 948-7270
Dr. Leilane Sta Romana, MD
Kenosha, WI · No drug or device payments recorded (2025) · (262) 658-3706

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.

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.

Related reading on HealthcareDiscovery.AI

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Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory. Are you a Internal Medicine in Wisconsin? Get featured.