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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. Jyoti Saluja, M.D.
Brookfield, WI · $14 in drug and device payments (2025) · (414) 302-5400
Dr. Kris Vanderkooy
Brookfield, WI · No drug or device payments recorded (2025) · (414) 805-9600
Dr. Lawrence Golopol, MD
Brookfield, WI · No drug or device payments recorded (2025) · (262) 790-1118
Dr. Luke Schroeder
Brookfield, WI · No drug or device payments recorded (2025) · Telehealth · (262) 754-8000
Dr. Marcy Mcadoo, M.D.
Brookfield, WI · $621 in drug and device payments (2025) · Telehealth · (262) 594-2946
Dr. Mark Obermyer, MD
Brookfield, WI · No drug or device payments recorded (2025) · Telehealth · (262) 532-8300
Dr. Michael Boschek, M.D.
Brookfield, WI · $31 in drug and device payments (2025) · (414) 302-5400
Dr. Michael Cada
Brookfield, WI · No drug or device payments recorded (2025) · Telehealth · (262) 532-8300
Dr. Michael Schneider, MD
Brookfield, WI · No drug or device payments recorded (2025) · Telehealth · (262) 754-8000
Dr. Michelle Agnew, M.D.
Brookfield, WI · $219 in drug and device payments (2025) · Telehealth · (262) 786-4550
Dr. Minoudokht Azimi-zavarei, MD
Brookfield, WI · No drug or device payments recorded (2025) · Telehealth · (262) 798-8750
Dr. Mushir Hassan, MD
Brookfield, WI · $17 in drug and device payments (2025) · (262) 782-4270
Dr. Patrick Fitzgerald, M.D.
Brookfield, WI · $33 in drug and device payments (2025) · Telehealth · (262) 532-8300
Dr. Peter Martin, MD
Brookfield, WI · $58 in drug and device payments (2025) · (262) 785-3010
Dr. Rita Hanson, MD
Brookfield, WI · No drug or device payments recorded (2025) · (414) 302-5404
Dr. Russell Blankenburg, MD
Brookfield, WI · $597 in drug and device payments (2025) · Telehealth · (262) 782-4270
Dr. Stephanie Strohbeen
Brookfield, WI · No drug or device payments recorded (2025) · Telehealth · (262) 641-8400
Dr. Stephen Bielke, MD
Brookfield, WI · No drug or device payments recorded (2025) · (262) 782-4270
Dr. Stuti Shankar, M.D.
Brookfield, WI · No drug or device payments recorded (2025) · Telehealth · (414) 805-9600
Dr. Sunu Eapen, MD
Brookfield, WI · $20 in drug and device payments (2025) · Telehealth · (414) 805-9600
Dr. Swarnambal Mani, M.D.
Brookfield, WI · No drug or device payments recorded (2025) · (262) 244-7099
Dr. Thomas Johnson, MD
Brookfield, WI · $660 in drug and device payments (2025) · (262) 782-4270
Dr. Timothy Cooper, M.D.
Brookfield, WI · No drug or device payments recorded (2025) · (262) 641-8400
Dr. Timothy Jest, M.D.
Brookfield, WI · $25 in drug and device payments (2025) · (414) 302-5400
Dr. Xueying Zhang, MD
Brookfield, WI · No drug or device payments recorded (2025) · (262) 641-8400
Dr. Ronald Lisiecki, M.D.
Brownsville, WI · $170 in drug and device payments (2025) · (920) 583-1300
Dr. Arthur Rein, MD
Burlington, WI · No drug or device payments recorded (2025) · (262) 767-8264
Dr. Elizabeth Joseph, M.D.
Burlington, WI · $44 in drug and device payments (2025) · Telehealth · (262) 767-8000
Dr. Indermohan Thethi, MD
Burlington, WI · No drug or device payments recorded (2025) · (262) 767-6100
Dr. Rajbir Dhillon, M.D.
Burlington, WI · No drug or device payments recorded (2025) · (262) 767-6000
Dr. Randall Schmidt, MD
Burlington, WI · No drug or device payments recorded (2025) · (262) 767-8262
Dr. Daniel Jablonski, MD
Cedarburg, WI · No drug or device payments recorded (2025) · (262) 377-6933
Dr. Donald Hennessy, M.D.
Cedarburg, WI · No drug or device payments recorded (2025) · (262) 377-6933
Dr. Fern Springs, MD
Chippewa Falls, WI · No drug or device payments recorded (2025) · (715) 720-2850
Dr. James Herron, M.D.
Chippewa Falls, WI · No drug or device payments recorded (2025) · (715) 720-3780
Dr. Mandy Oneill, LPN
Chippewa Falls, WI · No drug or device payments recorded (2025) · (715) 720-6603
Dr. Margaret Khan, M.D.
Chippewa Falls, WI · No drug or device payments recorded (2025) · (715) 723-5542
Dr. Steven Paulson, MD
Chippewa Falls, WI · $1,972 in drug and device payments (2025) · (715) 723-8827
Dr. Tamara Mohr
Chippewa Falls, WI · No drug or device payments recorded (2025) · (715) 720-3780
Dr. James Bieging, MD
Chippewa Fls, WI · No drug or device payments recorded (2025) · (715) 723-8827
Dr. Leslie Harrison, MD
Chippewa Fls, WI · No drug or device payments recorded (2025) · (715) 738-3700
Dr. Gurmeet Bhatia, M.D.
Cleveland, WI · No drug or device payments recorded (2025) · (920) 693-5600
Dr. Kim Erdmann, MD
Clintonville, WI · No drug or device payments recorded (2025) · (715) 524-2161
Dr. Asghar Marwat, M.D.
Columbus, WI · $90 in drug and device payments (2025) · (920) 623-1200
Dr. Bruce Kraus, M.D.
Columbus, WI · No drug or device payments recorded (2025) · (920) 623-2200
Dr. Ernest Lee, M.D.
Columbus, WI · No drug or device payments recorded (2025) · (920) 623-2200
Dr. Samuel Poser, M.D.
Columbus, WI · $1,037 in drug and device payments (2025) · (920) 623-5000
Dr. Rebecca Perry, MD
Crandon, WI · No drug or device payments recorded (2025) · (715) 478-3318
Dr. Armando Nunag, MD
Cudahy, WI · No drug or device payments recorded (2025) · (414) 489-4190
Dr. Jack Tertadian, M.D.
Cudahy, WI · No drug or device payments recorded (2025) · (414) 489-4190

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.