HealthcareDiscovery.AI / Doctors / Wisconsin / Internal Medicine

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. Glenn Olds, MD
Milwaukee, WI · $21 in drug and device payments (2025) · (414) 805-3666
Dr. Gloria Shenkir, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 319-3000
Dr. Gojko Stula, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 643-4430
Dr. Goran Rudic, M.D.
Milwaukee, WI · $67 in drug and device payments (2025) · Telehealth · (414) 389-3146
Dr. Gordon Schectman, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 384-2000
Dr. Gretta Colby, MD
Milwaukee, WI · $1,903 in drug and device payments (2025) · (414) 219-7427
Dr. Guglielmo Sala, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 319-3000
Dr. Hammam Shereef, MD
Milwaukee, WI · $23,959 in drug and device payments (2025) · (414) 649-6000
Dr. Harold Lenett, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 384-2000
Dr. Harrison Mooers
Milwaukee, WI · No drug or device payments recorded (2025) · Telehealth · (414) 805-6850
Dr. Hermela Gelaye
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 219-7136
Dr. Hiba Narvel, M.B.B.S.
Milwaukee, WI · $592 in drug and device payments (2025) · (347) 479-2358
Dr. Hina Mahboob, M.D
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 219-7136
Dr. Holly Leider, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 352-3100
Dr. Huma Asghar, MD
Milwaukee, WI · No drug or device payments recorded (2025) · Telehealth · (414) 805-5440
Dr. Huong Dangvu, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 352-3100
Dr. Hussam Sabbagh, M.D.
Milwaukee, WI · $297 in drug and device payments (2025) · (414) 805-3310
Dr. H Weiner, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 355-4300
Dr. Ian Gilson, MD
Milwaukee, WI · $17 in drug and device payments (2025) · (414) 805-5540
Dr. Isabel Mendez, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 385-8600
Dr. Jack Kaufman, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 805-6850
Dr. Jack Lin, DO
Milwaukee, WI · No drug or device payments recorded (2025) · Telehealth · (414) 805-6550
Dr. Jacob Thomas, DO
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 585-1000
Dr. Jake Decker, M.D.
Milwaukee, WI · $60 in drug and device payments (2025) · Telehealth · (414) 805-6850
Dr. Jalel Hunde, MD
Milwaukee, WI · $28 in drug and device payments (2025) · (469) 528-5136
Dr. James Mazzulla, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 282-2006
Dr. James Sebastian, M.D
Milwaukee, WI · $229 in drug and device payments (2025) · (414) 384-2000
Dr. James Volberding, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · Telehealth · (414) 272-8950
Dr. Jamie Buth, M.D.
Milwaukee, WI · $34 in drug and device payments (2025) · (414) 805-6850
Dr. Janak Wagle, M.D
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 805-6850
Dr. Jared Bishop, DO
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 805-3000
Dr. Jared Squires
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 955-8296
Dr. Jaren Thomas, M.D.
Milwaukee, WI · $218 in drug and device payments (2025) · (414) 805-6850
Dr. Jasna Jevtic, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 805-3666
Dr. Jaswinder Sundlass, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 647-5000
Dr. Jeffrey Bahr, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 352-3100
Dr. Jeffrey Gehl
Milwaukee, WI · No drug or device payments recorded (2025) · Telehealth · (414) 955-5990
Dr. Jeffrey Jackson, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 384-2000
Dr. Jeffrey Katt, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 352-3100
Dr. Jeffrey Smith, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 219-7293
Dr. Jeffrey Warner, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 456-7299
Dr. Jeffrey Whittle, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 384-2000
Dr. Jennifer Leber, DO
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 270-4932
Dr. Jennifer Mackinnon, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · Telehealth · (414) 805-6850
Dr. Jerome Van Ruiswyk, MD
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 805-6850
Dr. Jessica Pinon, RN, BSN
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 384-2000
Dr. Joanna Obaoye, MD
Milwaukee, WI · $401 in drug and device payments (2025) · (414) 955-6778
Dr. Joanna Zurko
Milwaukee, WI · $315 in drug and device payments (2025) · Telehealth · (414) 805-3000
Dr. Joanne Bernstein, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 805-6850
Dr. Joel Weiner, M.D.
Milwaukee, WI · No drug or device payments recorded (2025) · (414) 661-3952

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.