Oncologists in Illinois
Data updated monthly · Last refresh October 2026
185 Medical Oncology providers practice in Illinois, including 86 (46%) offering telehealth. The largest concentration is in Chicago. 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.
185providers
86telehealth
Chicagotop city
Medical Oncology by city in Illinois
Choose a city to see providers there.
Where Oncologists in Illinois practice
From CMS Medicare enrollment records covering 126 of the 185 providers listed here (68%). Providers who do not bill Medicare are not included in these figures.
5%solo or small practice (under 10 clinicians)
7%mid-size group (10 to 99)
88%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Oncologists | All clinicians in group | Main city |
| Endeavor Health Medical Group | 21 | 3,330 | Evanston |
| University of Chicago | 21 | 1,674 | Chicago |
| The University of Chicago Medical Center | 20 | 907 | Chicago |
| Northwestern Medical Faculty Foundation | 14 | 4,386 | Chicago |
| Advocate Health and Hospitals Corp.oration | 8 | 3,081 | Chicago |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Oncologists affiliated |
| The University of Chicago Medical Center | Chicago | Nonprofit | 4 of 5 | 22 |
| Swedish Hospital | Chicago | Nonprofit | 3 of 5 | 21 |
| Northshore University Healthsystem - Evanston Hospital | Evanston | Nonprofit | 5 of 5 | 21 |
| Northwestern Lake Forest Hospital | Lake Forest | Nonprofit | 5 of 5 | 13 |
| Northwestern Medicine Central Dupage Hospital | Winfield | Nonprofit | 5 of 5 | 13 |
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 Illinois
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. Palak Desai, M.D.Arlington Heights, IL · $1,148 in drug and device payments (2025) ·
(224) 251-1800 Dr. Arjun Natarajan, MDAurora, IL · No drug or device payments recorded (2025) · Telehealth ·
(630) 554-3456 Dr. Revathi Suppiah, M.D.Aurora, IL · $246 in drug and device payments (2025) · Telehealth ·
(630) 859-8700 Dr. Michael Soble, M.D.Barrington, IL · No drug or device payments recorded (2025) ·
(847) 842-0850 Dr. Guillermo Rodriguez, MDBelleville, IL · No drug or device payments recorded (2025) ·
(800) 647-2098 Dr. Cassandra Lacher, DOBourbonnais, IL · $240 in drug and device payments (2025) ·
(815) 933-9660 Dr. Mehmet Sipahi, MDBourbonnais, IL · $164 in drug and device payments (2025) ·
(815) 933-9660 Dr. Vassiliki Saloura, MDBurr Ridge, IL · No drug or device payments recorded (2025) · Telehealth ·
(773) 702-1150 Dr. Abiola Ibraheem, M.B.CHBChicago, IL · $1,559 in drug and device payments (2025) ·
(773) 702-1000 Dr. Al Benson, MDChicago, IL · $26,000 in drug and device payments (2025) ·
(312) 695-0990 Dr. Alexander PearsonChicago, IL · $11,344 in drug and device payments (2025) · Telehealth ·
(888) 824-0200 Dr. Andrzej JakubowiakChicago, IL · $10,366 in drug and device payments (2025) · Telehealth ·
(888) 824-0200 Dr. Anu NeerukondaChicago, IL · $14 in drug and device payments (2025) · Telehealth ·
(888) 824-0200 Dr. April Swoboda, MDChicago, IL · No drug or device payments recorded (2025) ·
(773) 834-2689 Dr. Ardaman ShergillChicago, IL · $4,795 in drug and device payments (2025) · Telehealth ·
(888) 824-0200 Dr. Atulkumar Dave, MDChicago, IL · No drug or device payments recorded (2025) ·
(847) 746-4358 Dr. Blase PoliteChicago, IL · $115 in drug and device payments (2025) · Telehealth ·
(888) 824-0200 Dr. Charles Bennett, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 695-6180 Dr. Christine Bestvina, M.D.Chicago, IL · $44,433 in drug and device payments (2025) · Telehealth ·
(773) 702-4627 Dr. Daniel Bruetman, MDChicago, IL · $359 in drug and device payments (2025) · Telehealth ·
(312) 477-2400 Dr. Daniel Peiffer, MD, PHDChicago, IL · No drug or device payments recorded (2025) ·
(773) 702-6840 Dr. David Vanderweele, M.D.Chicago, IL · $9,645 in drug and device payments (2025) · Telehealth ·
(773) 111-8972 Dr. Deimante Tamkus, M.D.Chicago, IL · $200 in drug and device payments (2025) ·
(312) 864-6000 Dr. Denise Levitan, MDChicago, IL · $180 in drug and device payments (2025) · Telehealth ·
(773) 296-7089 Dr. Devalingam Mahalingam, M.D.Chicago, IL · $27,574 in drug and device payments (2025) · Telehealth ·
(210) 413-1723 Dr. Elena Chiorean, M.D.Chicago, IL · $25,498 in drug and device payments (2025) · Telehealth ·
(888) 824-0200 Dr. Elyse Lambiase, MDChicago, IL · $389 in drug and device payments (2025) ·
(773) 989-3803 Dr. Eugene Ahn, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(847) 746-4358 Dr. Everett VokesChicago, IL · $42,157 in drug and device payments (2025) · Telehealth ·
(888) 824-0200 Dr. Frederick Howard, M.D.Chicago, IL · $20,016 in drug and device payments (2025) · Telehealth ·
(773) 702-1000 Dr. Hedy KindlerChicago, IL · No drug or device payments recorded (2025) · Telehealth ·
(888) 824-0200 Dr. James Brandman, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 695-0990 Dr. James Mulshine, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(312) 942-5904 Dr. James WallaceChicago, IL · $21,715 in drug and device payments (2025) · Telehealth ·
(888) 824-0200 Dr. Jamie Vonroenn, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 695-0990 Dr. Janet Chin, MDChicago, IL · $5,477 in drug and device payments (2025) · Telehealth ·
(888) 824-0200 Dr. Jeffrey Cilley, M.D.Chicago, IL · $837 in drug and device payments (2025) · Telehealth ·
(773) 989-3803 Dr. Jeffrey Sosman, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 695-0990 Dr. Joseph Franses, MDChicago, IL · $4,520 in drug and device payments (2025) · Telehealth ·
(773) 702-1000 Dr. Jyoti Patel, MDChicago, IL · $22,678 in drug and device payments (2025) ·
(312) 695-9797 Dr. Katherine Kabaker, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(312) 942-6600 Dr. Kenneth CohenChicago, IL · No drug or device payments recorded (2025) · Telehealth ·
(888) 824-0200 Dr. Kevin Conlon, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(312) 942-5904 Dr. Kumar Batra, M.D.Chicago, IL · $311 in drug and device payments (2025) ·
(312) 864-6000 Dr. Leonidas Platanias, MDChicago, IL · No drug or device payments recorded (2025) ·
(312) 695-9797 Dr. Lucio Di Nunno, M.D.Chicago, IL · No drug or device payments recorded (2025) ·
(312) 477-2400 Dr. Lydia Usha, M.D.Chicago, IL · $84 in drug and device payments (2025) · Telehealth ·
(312) 942-5904 Common questions
How many Medical Oncology providers are in Illinois?There are 185 Medical Oncology providers with active NPI records practicing in Illinois, according to federal NPPES data refreshed monthly.
Do Medical Oncology providers in Illinois offer telehealth?Yes. 86 of the 185 Medical Oncology providers in Illinois (about 46%) report offering telehealth services in CMS data.
Which cities in Illinois have the most Medical Oncology providers?Chicago (85), Evanston (18), Rockford (8) have the highest concentration of Medical Oncology providers in Illinois.
How many Medical Oncology providers in Illinois received drug or device company payments?115 of 185 Medical Oncology providers in Illinois (62%) 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 Illinois work in independent practices or large health systems?Among 126 Oncologists in Illinois enrolled in Medicare, 5% bill through a solo or small practice with fewer than 10 clinicians, 7% through a mid-size group of 10 to 99, and 88% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Oncologists in Illinois work at?According to CMS facility affiliation records, the Illinois hospitals where the most Oncologists hold privileges are The University of Chicago Medical Center in Chicago; Swedish Hospital in Chicago; Northshore University Healthsystem - Evanston Hospital in Evanston.
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