Oncologists in Wisconsin
Data updated monthly · Last refresh October 2026
69 Medical Oncology providers practice in Wisconsin, including 30 (43%) 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.
69providers
30telehealth
Madisontop city
Medical Oncology by city in Wisconsin
Choose a city to see providers there.
Where Oncologists in Wisconsin practice
From CMS Medicare enrollment records covering 45 of the 69 providers listed here (65%). Providers who do not bill Medicare are not included in these figures.
0%solo or small practice (under 10 clinicians)
2%mid-size group (10 to 99)
98%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Oncologists | All clinicians in group | Main city |
| University of Wisconsin Medical Foundation Inc. | 19 | 2,537 | Madison |
| The Medical College of Wisconsin Inc. | 4 | 2,092 | Milwaukee |
| Mayo Clinic Health System-Northwest Wisconsin Region Inc. | 4 | 797 | Eau Claire |
| St Vincent Hospital-Hospital Sisters-Third Order of St Francis | 4 | 593 | Green Bay |
| Ascension Ne Wisconsin, Inc. | 3 | 19 | Appleton |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Oncologists affiliated |
| University of Wi Hospitals & Clinics Authority | Madison | Government | 5 of 5 | 19 |
| Mayo Clinic Health System Eau Claire Hospital | Eau Claire | Nonprofit | 5 of 5 | 5 |
| Unitypoint Health - Meriter | Madison | Nonprofit | 5 of 5 | 5 |
| St Vincent Hospital | Green Bay | Nonprofit | 4 of 5 | 4 |
| Mayo Clinic Health System-Red Cedar Inc. | Menomonie | Nonprofit | 3 of 5 | 4 |
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.
Medical 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. Anand Patel, M.D.Brookfield, WI · $81 in drug and device payments (2025) ·
(262) 780-4111 Dr. Eyad Al-hattab, MDEau Claire, WI · $112 in drug and device payments (2025) · Telehealth ·
(715) 838-5222 Dr. Mihailo Lalich, MDEau Claire, WI · $47 in drug and device payments (2025) · Telehealth ·
(715) 839-9280 Dr. Samina Hirani, MBBSEau Claire, WI · No drug or device payments recorded (2025) · Telehealth ·
(715) 838-6072 Dr. Sandeep Basu, MDEau Claire, WI · $68 in drug and device payments (2025) · Telehealth ·
(715) 838-5222 Dr. Timothy Burns, MDEau Claire, WI · $280 in drug and device payments (2025) · Telehealth ·
(715) 838-5222 Dr. Francis Cuevas, MDFranklin, WI · $172 in drug and device payments (2025) ·
(414) 427-6230 Dr. Greg Mccormack, M.D.Frederic, WI · No drug or device payments recorded (2025) ·
(715) 327-8045 Dr. Alexander Starr, MDGreen Bay, WI · $650 in drug and device payments (2025) ·
(920) 884-3135 Dr. David Groteluschen, M.D.Green Bay, WI · No drug or device payments recorded (2025) ·
(920) 884-3135 Dr. Evan WenigGreen Bay, WI · No drug or device payments recorded (2025) ·
(866) 884-3135 Dr. Gerald Bayer, M.D.Green Bay, WI · No drug or device payments recorded (2025) ·
(920) 432-6049 Dr. Hassan Tahsildar, M.D.Green Bay, WI · No drug or device payments recorded (2025) ·
(920) 435-8326 Dr. James Mcgovern, M.D.Green Bay, WI · No drug or device payments recorded (2025) ·
(920) 866-3318 Dr. Kamal Kant Singh Abbi, M.D.Green Bay, WI · $131 in drug and device payments (2025) ·
(920) 884-3135 Dr. Maria De Villa, M.D.Green Bay, WI · No drug or device payments recorded (2025) · Telehealth ·
(920) 435-8326 Dr. Ruth Warren, DOGreen Bay, WI · $112 in drug and device payments (2025) ·
(920) 884-3135 Dr. Thomas Saphner, M.D.Green Bay, WI · No drug or device payments recorded (2025) ·
(920) 884-3135 Dr. Ismael Shaukat, M.D.Janesville, WI · $33 in drug and device payments (2025) ·
(608) 756-6868 Dr. Shahid Shekhani, MDJanesville, WI · $115 in drug and device payments (2025) · Telehealth ·
(608) 756-6871 Dr. Michael Eastman, MDJohnson Creek, WI · No drug or device payments recorded (2025) · Telehealth ·
(920) 699-3500 Dr. Agnes Smaradottir, MDLa Crosse, WI · No drug or device payments recorded (2025) ·
(608) 782-7300 Dr. Alcee Jumonville, MDLa Crosse, WI · No drug or device payments recorded (2025) ·
(608) 782-7300 Dr. Frank Cadwell, MDLa Crosse, WI · No drug or device payments recorded (2025) ·
(608) 782-7300 Dr. Leah Dietrich, MDLa Crosse, WI · No drug or device payments recorded (2025) ·
(608) 782-7300 Dr. Robert Witte, MDLa Crosse, WI · No drug or device payments recorded (2025) ·
(608) 782-7300 Dr. Roger Kwong, MDLa Crosse, WI · No drug or device payments recorded (2025) ·
(608) 782-7300 Dr. Sigurdur Bodvarsson, M.D.La Crosse, WI · No drug or device payments recorded (2025) ·
(608) 782-7300 Dr. Tezo Karedan, MDLa Crosse, WI · $170 in drug and device payments (2025) · Telehealth ·
(715) 838-5222 Dr. Amy Taylor, MDMadison, WI · No drug or device payments recorded (2025) · Telehealth ·
(608) 263-6400 Dr. Anne Traynor, MDMadison, WI · No drug or device payments recorded (2025) ·
(608) 445-1537 Dr. Anthony Serritella, MDMadison, WI · $2,416 in drug and device payments (2025) · Telehealth ·
(608) 915-0100 Dr. Cheryl Czerlanis, MDMadison, WI · $43 in drug and device payments (2025) · Telehealth ·
(608) 265-1700 Dr. Douglas Mcneel, MD PHDMadison, WI · No drug or device payments recorded (2025) · Telehealth ·
(608) 265-1700 Dr. Dustin Deming, M.D.Madison, WI · $28,073 in drug and device payments (2025) · Telehealth ·
(608) 265-1700 Dr. George Wilding, MDMadison, WI · No drug or device payments recorded (2025) ·
(608) 265-1700 Dr. Glenn Liu, MDMadison, WI · No drug or device payments recorded (2025) ·
(608) 265-1700 Dr. Gregory Medis, MDMadison, WI · No drug or device payments recorded (2025) ·
(606) 265-1700 Dr. Jeffrey Rytlewski, MDMadison, WI · No drug or device payments recorded (2025) ·
(608) 915-0100 Dr. Joshua Lang, M.D.Madison, WI · $45,825 in drug and device payments (2025) · Telehealth ·
(608) 265-1700 Dr. Justine BruceMadison, WI · $6,282 in drug and device payments (2025) · Telehealth ·
(608) 265-1700 Dr. Kari Wisinski, MDMadison, WI · $6,516 in drug and device payments (2025) · Telehealth ·
(608) 266-6400 Dr. Kyle Holen, MDMadison, WI · No drug or device payments recorded (2025) ·
(608) 265-1700 Dr. Laura Miotke Huss, MDMadison, WI · No drug or device payments recorded (2025) · Telehealth ·
(608) 915-0100 Dr. Leah Wells, MDMadison, WI · No drug or device payments recorded (2025) · Telehealth ·
(608) 262-9368 Dr. Marina Sharifi, M.D., PH.D.Madison, WI · No drug or device payments recorded (2025) · Telehealth ·
(608) 266-6400 Dr. Mark Albertini, MDMadison, WI · No drug or device payments recorded (2025) · Telehealth ·
(608) 265-1700 Dr. Michael Huie, MDMadison, WI · No drug or device payments recorded (2025) · Telehealth ·
(000) 000-0000 Dr. Michele Pipp-dahm, MDMadison, WI · No drug or device payments recorded (2025) ·
(608) 265-1700 Dr. Noelle Loconte, MDMadison, WI · No drug or device payments recorded (2025) · Telehealth ·
(608) 265-1700 Common questions
How many Medical Oncology providers are in Wisconsin?There are 69 Medical Oncology providers with active NPI records practicing in Wisconsin, according to federal NPPES data refreshed monthly.
Do Medical Oncology providers in Wisconsin offer telehealth?Yes. 30 of the 69 Medical Oncology providers in Wisconsin (about 43%) report offering telehealth services in CMS data.
Which cities in Wisconsin have the most Medical Oncology providers?Madison (27), Green Bay (10), La Crosse (8) have the highest concentration of Medical Oncology providers in Wisconsin.
How many Medical Oncology providers in Wisconsin received drug or device company payments?24 of 69 Medical Oncology providers in Wisconsin (35%) 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 Oncologists in Wisconsin work in independent practices or large health systems?Among 45 Oncologists in Wisconsin enrolled in Medicare, 0% bill through a solo or small practice with fewer than 10 clinicians, 2% through a mid-size group of 10 to 99, and 98% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Oncologists in Wisconsin work at?According to CMS facility affiliation records, the Wisconsin hospitals where the most Oncologists hold privileges are University of Wi Hospitals & Clinics Authority in Madison; Mayo Clinic Health System Eau Claire Hospital in Eau Claire; Unitypoint Health - Meriter in Madison.
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