Medical Oncology in Wisconsin
134 licensed medical oncologists practicing in Wisconsin across 54 cities.
This page republishes public records from the federal NPI Registry, which every licensed U.S. healthcare provider is required to maintain. These are federal-agency records, not a directory we compile.
Source: NPI Registry · last checked
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Click a city to filter the 50 providers shown below. Wisconsin has providers in 54 cities total — search the full NPI Registry for cities not shown here.
NPI Registry records — Medical Oncology in Wisconsin
27 of 50 shown have disclosed payments in CMS Open Payments (2024)
Showing 50 of 134 federal NPI records, alphabetical by last name. Contact details come directly from the NPI Registry — verify currency with the provider's office. Pharma / device payment disclosures from CMS Open Payments are shown where the physician appears in that federal database.
Kamal Kant Singh Abbi, MD
1726 Shawano Ave
Green Bay, WI 54303 · (920) 884-3135
License: 65082-20 (WI)
In 2023, $140 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($140).
In 2023, $98 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($98).
In 2024, $4,322 was disclosed to this physician across 5 transactions by pharmaceutical or medical-device companies.
Mostly consulting fees ($4,100) and entertainment ($222).
Largest single payer: AstraZeneca Pharmaceuticals LP ($4,267).
In 2024, $1,909 was disclosed to this physician across 85 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($1,824) and gifts ($85).
Largest single payer: E.R. Squibb & Sons, L.L.C. ($200).
Jacob Jay Adashek, DO
W180n11070 River Ln
Germantown, WI 53022 · (262) 532-9755
License: 8182221 (WI)
In 2023, $15 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly gifts ($15).
In 2024, $5,497 was disclosed to this physician across 8 transactions by pharmaceutical or medical-device companies.
$3,530 was research funding (clinical-trial work); the remainder was charitable contributions ($1,575) and entertainment ($392).
Largest single payer: Pfizer Inc. ($3,530).
Danielle Francoise Atibalentja, MD, PHD
600 Highland Ave
Madison, WI 53792 · (608) 915-0100
License: 86720-20 (WI)
In 2023, $553 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly charitable contributions ($553).
Soley Bayraktar, MD
1840 Mease Dr Ste 409
Safety Harbor, FL 34695 · (727) 443-8450
License: ME140039 (FL)
In 2024, $281 was disclosed to this physician across 14 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($281).
Largest single payer: Genzyme Corporation ($51).
Steven Mark Bettag, MD
1621 N Taylor Dr
Sheboygan, WI 53081 · (920) 458-7433
License: 36813-020 (WI)
In 2024, $1,375 was disclosed to this physician across 54 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($1,259) and gifts ($116).
Largest single payer: E.R. Squibb & Sons, L.L.C. ($223).
In 2024, $1,777 was disclosed to this physician across 7 transactions by pharmaceutical or medical-device companies.
Mostly charitable contributions ($1,100) and meals and beverages ($438).
Largest single payer: Alexion Pharmaceuticals, Inc. ($1,680).
In 2024, $340 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly consulting fees ($200) and entertainment ($140).
Largest single payer: Genzyme Corporation ($200).
Timothy Francis Burns, MD
1400 Bellinger St
Eau Claire, WI 54703 · (715) 838-5222
License: 70965 (WI)
Toby Christopher Campbell, MD, MSCI
600 Highland Ave
Madison, WI 53792 · (608) 263-3962
License: 45236 (WI)
In 2023, $8,688 was disclosed to this physician across 11 transactions by pharmaceutical or medical-device companies.
Mostly stock or ownership interest ($4,350) and charitable contributions ($3,040).
Justin James Chau, MD
975 Port Washington Rd
Grafton, WI 53024
License: 82045 (WI)
In 2024, $16,024 was disclosed to this physician across 8 transactions by pharmaceutical or medical-device companies.
Mostly consulting fees ($15,500) and meals and beverages ($329).
Largest single payer: Jazz Pharmaceuticals Inc. ($16,024).
Nicholas W Choong, MD
9200 W Wisconsin Ave, Division of Neoplastic Diseases
Milwaukee, WI 53226 · (414) 805-4600
License: 50090 (WI)
In 2024, $193 was disclosed to this physician across 3 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($175) and gifts ($18).
Largest single payer: Amgen Inc. ($142).
Manh C Dang, MD
1 Hospital Dr Sw, Suite 400
Huntsville, AL 35801 · (256) 705-4224
License: 00018764 (AL)
In 2024, $297 was disclosed to this physician across 12 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($247) and gifts ($50).
Largest single payer: Incyte Corporation ($75).
In 2024, $19 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($19).
Largest single payer: Jazz Pharmaceuticals Inc. ($19).
In 2024, $2,598 was disclosed to this physician across 3 transactions by pharmaceutical or medical-device companies.
Mostly charitable contributions ($1,750) and consulting fees ($730).
Largest single payer: Taiho Oncology, Inc. ($1,868).
In 2023, $193 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($193).
Kim Lynnette Dittus, MD, PHD
600 Highland Ave
Madison, WI 53792 · (608) 265-1700
License: 83937-20 (WI)
In 2023, $14 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly gifts ($14).
Natasha Catherine Edwin, MD
9135 Sw Barnes Rd Ste 261
Portland, OR 97225 · (503) 216-6300
License: MD206909 (OR)
In 2024, $910 was disclosed to this physician across 8 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($760) and charitable contributions ($150).
Largest single payer: ADC Therapeutics America, Inc. ($150).
Rifat T. Elkhatib, MD
272 Hospital Rd
Chillicothe, OH 45601 · (740) 542-3030
License: 35.135372 (OH)
In 2024, $494 was disclosed to this physician across 7 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($494).
Largest single payer: Teleflex LLC ($279).
In 2024, $935 was disclosed to this physician across 8 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($935).
Largest single payer: Alafair Biosciences, Inc. ($154).
Christopher D Fletcher, MD
600 Highland Ave, K6/510 Csc
Madison, WI 53792 · (608) 265-8690
License: 53456 (WI)
In 2024, $77,043 was disclosed to this physician across 50 transactions by pharmaceutical or medical-device companies.
$660 was research funding (clinical-trial work); the remainder was consulting fees ($52,900) and charitable contributions ($14,930).
Largest single payer: Taiho Oncology, Inc. ($29,470).
In 2023, $20 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly gifts ($20).
In 2023, $16 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($16).
In 2023, $105 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($105).
In 2024, $2,014 was disclosed to this physician across 91 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($1,915) and gifts ($99).
Largest single payer: NOVARTIS PHARMACEUTICALS CORPORATION ($310).
Showing 50 of 134. Search all on NPI Registry →
Payment totals shown for the latest published program year (2024). Presence of disclosed payments is not, on its own, a conflict of interest. Physicians dispute records directly with CMS (dispute process). How we show this.
Open Payments figures as displayed on . Corrections flow from the manufacturer through CMS and are adopted on our next refresh.
What this page is: a republication of public federal NPI Registry records, filtered to the medical oncology taxonomy. It is not a directory we curate, and inclusion is automatic based on each provider's own NPI filing with CMS. Providers who believe their NPI record is inaccurate should update it directly with CMS at npiregistry.cms.hhs.gov; our next refresh adopts the corrected federal record.
Practice info disclaimer: Provider addresses and phone numbers come from the NPI Registry, which providers update at their discretion. Always call ahead to confirm the provider is currently accepting patients and is at the listed address.
Medical disclaimer: This page is not a quality ranking and does not constitute medical advice or endorsement. Choose a provider in consultation with your primary care physician or care team.
Source: NPI Registry (taxonomy: Medical Oncology) · Last checked: 2026-04-20