Surgical Oncologists in Wisconsin
Data updated monthly · Last refresh October 2026
41 Surgical Oncology providers practice in Wisconsin, including 18 (44%) offering telehealth. The largest concentration is in Milwaukee. 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.
41providers
18telehealth
Milwaukeetop city
Surgical Oncology by city in Wisconsin
Choose a city to see providers there.
Where Surgical Oncologists in Wisconsin practice
From CMS Medicare enrollment records covering 28 of the 41 providers listed here (68%). Providers who do not bill Medicare are not included in these figures.
0%solo or small practice (under 10 clinicians)
0%mid-size group (10 to 99)
100%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Surgical Oncologists | All clinicians in group | Main city |
| The Medical College of Wisconsin Inc. | 11 | 2,092 | Milwaukee |
| University of Wisconsin Medical Foundation Inc. | 10 | 2,537 | Madison |
| Aurora Medical Group, Inc.. | 4 | 3,764 | Milwaukee |
| Mchs Hospitals Inc. | 3 | 1,195 | Marshfield |
| Aurora Advanced Healthcare, Inc.. | 3 | 1,107 | Grafton |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Surgical Oncologists affiliated |
| Froedtert Memorial Lutheran Hospital | Milwaukee | Nonprofit | 3 of 5 | 11 |
| University of Wi Hospitals & Clinics Authority | Madison | Government | 5 of 5 | 9 |
| Aurora St Lukes Medical Center | Milwaukee | Nonprofit | 4 of 5 | 4 |
| Aurora Medical Center | Grafton | Nonprofit | 5 of 5 | 3 |
| West Allis Memorial Hospital | West Allis | Nonprofit | 4 of 5 | 3 |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
Surgical Oncology 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. Alexandra Acher, M.D.Madison, WI · $84 in drug and device payments (2025) · Telehealth ·
(608) 262-2025 Dr. Anna Beck, M.D.Madison, WI · No drug or device payments recorded (2025) ·
(608) 266-6400 Dr. Ashley Woodfin, MDMadison, WI · No drug or device payments recorded (2025) ·
(608) 266-6400 Dr. Daniel Abbott, MDMadison, WI · $1,430 in drug and device payments (2025) · Telehealth ·
(608) 263-7502 Dr. Jacqueline Murtha, MDMadison, WI · No drug or device payments recorded (2025) ·
(608) 263-7502 Dr. Meeghan Lautner, MDMadison, WI · No drug or device payments recorded (2025) ·
(608) 266-6400 Dr. Patrick Varley, M.D.Madison, WI · $84 in drug and device payments (2025) · Telehealth ·
(608) 263-7502 Dr. Rebecca Minter, MDMadison, WI · No drug or device payments recorded (2025) · Telehealth ·
(608) 265-8854 Dr. Sean Ronnekleiv-kelly, M.D.Madison, WI · No drug or device payments recorded (2025) ·
(608) 263-7502 Dr. Syed Nabeel Zafar, MD MPHMadison, WI · $80 in drug and device payments (2025) · Telehealth ·
(608) 263-7502 Dr. Anna Seydel, M.D.Marshfield, WI · No drug or device payments recorded (2025) ·
(715) 387-5511 Dr. Jessica Wernberg, MDMarshfield, WI · No drug or device payments recorded (2025) · Telehealth ·
(715) 387-5511 Dr. Rohit Sharma, MDMarshfield, WI · $1,879 in drug and device payments (2025) · Telehealth ·
(715) 387-5511 Dr. Aaron Chevinsky, M.D.Milwaukee, WI · $1,000 in drug and device payments (2025) ·
(414) 649-3240 Dr. Adrienne Cobb, M.D.Milwaukee, WI · $224 in drug and device payments (2025) ·
(414) 955-1450 Dr. Alexandra IstlMilwaukee, WI · $815 in drug and device payments (2025) · Telehealth ·
(414) 955-1400 Dr. Alonzo Walker, MDMilwaukee, WI · No drug or device payments recorded (2025) ·
(414) 805-5020 Dr. Anai KothariMilwaukee, WI · $370 in drug and device payments (2025) · Telehealth ·
(414) 955-1400 Dr. Areej Sami, MDMilwaukee, WI · $1,868 in drug and device payments (2025) ·
(144) 649-3240 Dr. Caitlin PattenMilwaukee, WI · No drug or device payments recorded (2025) · Telehealth ·
(414) 805-5020 Dr. Callisia Clarke, MDMilwaukee, WI · $14,898 in drug and device payments (2025) · Telehealth ·
(414) 805-5020 Dr. Chandler Cortina, M.D.Milwaukee, WI · $132 in drug and device payments (2025) ·
(414) 955-1450 Dr. Charles Pilgrim, MDMilwaukee, WI · No drug or device payments recorded (2025) ·
(414) 805-5020 Dr. Douglas Evans, M.D.Milwaukee, WI · $102 in drug and device payments (2025) · Telehealth ·
(414) 805-5020 Dr. Edward Quebbeman, MDMilwaukee, WI · No drug or device payments recorded (2025) ·
(414) 805-5020 Dr. Geoffrey Bellini, MDMilwaukee, WI · $1,579 in drug and device payments (2025) · Telehealth ·
(414) 649-3240 Dr. Jasmine Walker, M.D.Milwaukee, WI · No drug or device payments recorded (2025) ·
(414) 955-1400 Dr. Jennifer Rabaglia, M.D.Milwaukee, WI · No drug or device payments recorded (2025) ·
(414) 955-1400 Dr. Joseph Weber, M.D.Milwaukee, WI · No drug or device payments recorded (2025) ·
(414) 385-2301 Dr. Kristen KolbergMilwaukee, WI · $112 in drug and device payments (2025) ·
(414) 649-3240 Dr. Osamu YoshinoMilwaukee, WI · No drug or device payments recorded (2025) ·
(414) 955-1402 Dr. Rebecca Kim, MDMilwaukee, WI · No drug or device payments recorded (2025) ·
(414) 955-1450 Dr. Stuart Wilson, MDMilwaukee, WI · $102 in drug and device payments (2025) ·
(414) 805-5020 Dr. Thomas Gamblin, M.D.Milwaukee, WI · No drug or device payments recorded (2025) · Telehealth ·
(414) 805-5020 Dr. Tracy Wang, M.D.Milwaukee, WI · $2,313 in drug and device payments (2025) · Telehealth ·
(414) 805-5020 Dr. Ugwuji Maduekwe, MDMilwaukee, WI · No drug or device payments recorded (2025) · Telehealth ·
(414) 955-1400 Dr. Wesley Papenfuss, MDMilwaukee, WI · $597 in drug and device payments (2025) · Telehealth ·
(414) 649-3240 Dr. Yongwoo Seo, MDMilwaukee, WI · No drug or device payments recorded (2025) · Telehealth ·
(414) 955-1400 Dr. Jennifer Racz, MD, MBA, FRCSCWaunakee, WI · No drug or device payments recorded (2025) ·
(507) 512-9291 Dr. Nikolaos Chatzizacharias, MD, PHD, FRCSWauwatosa, WI · No drug or device payments recorded (2025) ·
(414) 805-5020 Dr. Nicole Zaremba, MDWest Allis, WI · $499 in drug and device payments (2025) ·
(414) 329-5627 Common questions
How many Surgical Oncology providers are in Wisconsin?There are 41 Surgical Oncology providers with active NPI records practicing in Wisconsin, according to federal NPPES data refreshed monthly.
Do Surgical Oncology providers in Wisconsin offer telehealth?Yes. 18 of the 41 Surgical Oncology providers in Wisconsin (about 44%) report offering telehealth services in CMS data.
Which cities in Wisconsin have the most Surgical Oncology providers?Milwaukee (25), Madison (10), Marshfield (3) have the highest concentration of Surgical Oncology providers in Wisconsin.
How many Surgical Oncology providers in Wisconsin received drug or device company payments?19 of 41 Surgical Oncology providers in Wisconsin (46%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
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 Surgical Oncologists in Wisconsin work in independent practices or large health systems?Among 28 Surgical Oncologists in Wisconsin enrolled in Medicare, 0% bill through a solo or small practice with fewer than 10 clinicians, 0% through a mid-size group of 10 to 99, and 100% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Surgical Oncologists in Wisconsin work at?According to CMS facility affiliation records, the Wisconsin hospitals where the most Surgical Oncologists hold privileges are Froedtert Memorial Lutheran Hospital in Milwaukee; University of Wi Hospitals & Clinics Authority in Madison; Aurora St Lukes Medical Center in Milwaukee.
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