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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. David Lucke, M.D.
Mequon, WI · No drug or device payments recorded (2025) · Telehealth · (262) 243-5000
Dr. Deidre Faust, MD
Mequon, WI · $102 in drug and device payments (2025) · (262) 243-5000
Dr. Enid Trotman, MD
Mequon, WI · No drug or device payments recorded (2025) · (414) 305-4954
Dr. George Munkwitz, M.D.
Mequon, WI · No drug or device payments recorded (2025) · (262) 243-5861
Dr. Irwin Margolis, M.D.
Mequon, WI · No drug or device payments recorded (2025) · (262) 643-4097
Dr. John Sanidas, M.D.
Mequon, WI · No drug or device payments recorded (2025) · (262) 243-5000
Dr. Kevin Goniu, MD
Mequon, WI · $14 in drug and device payments (2025) · (262) 518-1900
Dr. Lewis Feiges, M.D
Mequon, WI · No drug or device payments recorded (2025) · (262) 643-4490
Dr. Luke Rehrauer, MD
Mequon, WI · No drug or device payments recorded (2025) · (262) 387-8200
Dr. Lynne Langlois, D.O.
Mequon, WI · No drug or device payments recorded (2025) · (414) 324-8287
Dr. Madhumathi Kosaraju, MD
Mequon, WI · No drug or device payments recorded (2025) · Telehealth · (312) 532-7522
Dr. Margaret Spoerl, MD
Mequon, WI · No drug or device payments recorded (2025) · (262) 387-8200
Dr. Maria Beg, MD
Mequon, WI · $18 in drug and device payments (2025) · Telehealth · (262) 518-1900
Dr. Marsha Davis, MD
Mequon, WI · No drug or device payments recorded (2025) · (262) 242-0700
Dr. Michael Unger, M.D.
Mequon, WI · No drug or device payments recorded (2025) · (414) 290-6720
Dr. Mina Khorshidi, MD
Mequon, WI · No drug or device payments recorded (2025) · (262) 242-3565
Dr. Norine Nazareth, M.D.
Mequon, WI · No drug or device payments recorded (2025) · Telehealth · (262) 387-8200
Dr. Rachel Oosterbaan-panarese, M.D.
Mequon, WI · $121 in drug and device payments (2025) · Telehealth · (262) 243-5000
Dr. Ruchira Varshney, D.O.
Mequon, WI · $44 in drug and device payments (2025) · (312) 965-1747
Dr. Rupika Uberoi-nangia, MD
Mequon, WI · No drug or device payments recorded (2025) · (262) 387-8200
Dr. Scott Jorgensen, M.D.
Mequon, WI · $99 in drug and device payments (2025) · (262) 243-5000
Dr. Christian Lee, MD
Merrill, WI · No drug or device payments recorded (2025) · (175) 539-5600
Dr. Jane Ollrogge, MD
Merrill, WI · No drug or device payments recorded (2025) · (715) 539-0101
Dr. Rajender Polireddy, M.D
Merrill, WI · $111 in drug and device payments (2025) · (715) 539-0101
Dr. Eric Streicher, MD
Middleton, WI · No drug or device payments recorded (2025) · (608) 827-2308
Dr. Frances Priddy, MD
Middleton, WI · $1,455 in drug and device payments (2025) · (608) 203-5141
Dr. Gerhard Kraske, MD
Middleton, WI · No drug or device payments recorded (2025) · (608) 417-3434
Dr. Gregory Sheehy, MD
Middleton, WI · No drug or device payments recorded (2025) · (608) 836-1644
Dr. Irene Mirkin, MD
Middleton, WI · No drug or device payments recorded (2025) · (608) 417-3434
Dr. James Giesen, MD
Middleton, WI · No drug or device payments recorded (2025) · (000) 000-0000
Dr. Kenneth Felz, MD
Middleton, WI · No drug or device payments recorded (2025) · (608) 417-3434
Dr. Mark Davis, MD
Middleton, WI · No drug or device payments recorded (2025) · (608) 417-3434
Dr. Nancy Fuller, MD
Middleton, WI · No drug or device payments recorded (2025) · (000) 000-0000
Dr. Paul Nemovitz, M.D.
Middleton, WI · No drug or device payments recorded (2025) · (608) 417-3434
Dr. Douglas Schmid, MD
Milton, WI · No drug or device payments recorded (2025) · (608) 868-3526
Dr. Aaron Byczynski
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 219-2000
Dr. Aaron Ratliff, MD
Milwaukee, WI · $60 in drug and device payments (2025) · (414) 447-2000
Dr. Abby Frederickson, DO
Milwaukee, WI · $402 in drug and device payments (2025) · (414) 955-6777
Dr. Abdul Arif, MD
Milwaukee, WI · $199 in drug and device payments (2025) · Telehealth · (414) 291-2626
Dr. Abhishek Gowda, DO
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 219-7635
Dr. Abigail Arky, DO
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 219-2000
Dr. Abishta Prabhu, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 955-0532
Dr. Abraham Varghese, M.D.
Milwaukee, WI · $14 in drug and device payments (2025) · (414) 272-8950
Dr. Adam Kelly, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 955-8296
Dr. Adam King, MS, MD
Milwaukee, WI · No drug or device payments recorded (2025) · Telehealth · (414) 978-9100
Dr. Adam Leidal, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 805-0812
Dr. Adam Romeiser, M.D.
Milwaukee, WI · $24 in drug and device payments (2025) · Telehealth · (414) 267-6502
Dr. Adnan Nazir, M.D.
Milwaukee, WI · $168 in drug and device payments (2025) · (414) 434-8517
Dr. Agnes Lun, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 319-3000
Dr. Aijaz Noor, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 649-7202

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.

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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.