Radiation Oncologists in Illinois
Data updated monthly · Last refresh October 2026
278 Radiation Oncology providers practice in Illinois, including 68 (24%) 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.
278providers
68telehealth
Chicagotop city
Radiation Oncology by city in Illinois
Choose a city to see providers there.
Radiation 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. Sulochana Yalavarthi, M.D.Harvey, IL · No drug or device payments recorded (2025) ·
(708) 915-6620 Dr. Chirag Modi, M.D.Hinsdale, IL · $429 in drug and device payments (2025) ·
(630) 286-5500 Dr. Kapila Kalakota, M.D.Hinsdale, IL · No drug or device payments recorded (2025) ·
(630) 286-5808 Dr. Patrick Sweeney, M.D.Hinsdale, IL · $60 in drug and device payments (2025) ·
(630) 286-5500 Dr. William Fischer, M.D.Hinsdale, IL · No drug or device payments recorded (2025) ·
(630) 325-7814 Dr. William Hartsell, M.D.Hinsdale, IL · $43 in drug and device payments (2025) ·
(630) 286-5500 Dr. Rajiv Patel, MDHoffman Estates, IL · $113 in drug and device payments (2025) ·
(847) 755-8400 Dr. Paul Desrosiers, MDJoliet, IL · $1,319 in drug and device payments (2025) ·
(815) 409-4957 Dr. Salwa Asaad, MDJoliet, IL · No drug or device payments recorded (2025) ·
(815) 722-1818 Dr. Samia Luka, MDJoliet, IL · No drug or device payments recorded (2025) ·
(815) 722-1818 Dr. Vera Petras, MDJoliet, IL · No drug or device payments recorded (2025) ·
(815) 942-2932 Dr. Joseph Imperato, M.D.Lake Forest, IL · No drug or device payments recorded (2025) ·
(847) 234-6135 Dr. Marc Posner, M.D.Lake Forest, IL · $397 in drug and device payments (2025) · Telehealth ·
(847) 535-6135 Dr. Dean Conterato, MDLibertyville, IL · $106 in drug and device payments (2025) ·
(847) 990-5910 Dr. James Ruffer, M.D.Libertyville, IL · $146 in drug and device payments (2025) ·
(847) 990-5910 Dr. Joy Coleman, M.D.Libertyville, IL · No drug or device payments recorded (2025) · Telehealth ·
(847) 990-5910 Dr. Majid Mohiuddin, M.D.Libertyville, IL · No drug or device payments recorded (2025) ·
(847) 990-5910 Dr. Katherine Baker, MDLisle, IL · $71 in drug and device payments (2025) · Telehealth ·
(630) 432-6745 Dr. Paul Kreinbrink, M.D. Dr. Saleem Mahmood, MDLitchfield, IL · No drug or device payments recorded (2025) ·
(217) 324-1100 Dr. Luke Miller, MDMacneal, IL · No drug or device payments recorded (2025) ·
(708) 783-9100 Dr. Seong Cho, MDMattoon, IL · $1,749 in drug and device payments (2025) · Telehealth ·
(217) 258-2250 Dr. Abhishek Solanki, M.D.Maywood, IL · $312 in drug and device payments (2025) · Telehealth ·
(708) 216-2729 Dr. Anupama Chundury, M.D., M.S.Maywood, IL · No drug or device payments recorded (2025) ·
(708) 216-9000 Dr. Bahman Emami, MDMaywood, IL · No drug or device payments recorded (2025) ·
(708) 216-2575 Dr. Claire Niewiara, MDMaywood, IL · No drug or device payments recorded (2025) ·
(708) 216-2729 Dr. Courtney Hentz, MDMaywood, IL · $135 in drug and device payments (2025) ·
(708) 216-2587 Dr. Edward Melian, MDMaywood, IL · No drug or device payments recorded (2025) ·
(708) 216-2575 Dr. James Welsh, MS MDMaywood, IL · No drug or device payments recorded (2025) ·
(708) 216-9000 Dr. Matthew Harkenrider, M.D.Maywood, IL · No drug or device payments recorded (2025) · Telehealth ·
(708) 216-2575 Dr. Nagendra Koneru, M.D.Maywood, IL · $16,204 in drug and device payments (2025) ·
(708) 216-9000 Dr. Samar Khan, MSMaywood, IL · $603 in drug and device payments (2025) ·
(888) 584-7888 Dr. Sarada Reddy, MDMaywood, IL · No drug or device payments recorded (2025) ·
(708) 216-2575 Dr. Zohaib Sherwani, MDMaywood, IL · No drug or device payments recorded (2025) ·
(224) 766-0922 Dr. Shunqing Zhang, MDMchenry, IL · No drug or device payments recorded (2025) · Telehealth ·
(815) 344-8000 Dr. Terrence Bugno, MDMchenry, IL · No drug or device payments recorded (2025) · Telehealth ·
(815) 344-8000 Dr. Thomas Stoffel, MDMoline, IL · No drug or device payments recorded (2025) ·
(309) 779-5090 Dr. Ommar Hla, MDMorris, IL · No drug or device payments recorded (2025) ·
(815) 364-8915 Dr. Suzan Cheng, MDMorris, IL · No drug or device payments recorded (2025) ·
(815) 364-8915 Dr. Neil Das Gupta, M.D.Naperville, IL · No drug or device payments recorded (2025) ·
(630) 527-3788 Dr. Charles Groen, MDNiles, IL · No drug or device payments recorded (2025) ·
(847) 827-9490 Common questions
How many Radiation Oncology providers are in Illinois?There are 278 Radiation Oncology providers with active NPI records practicing in Illinois, according to federal NPPES data refreshed monthly.
Do Radiation Oncology providers in Illinois offer telehealth?Yes. 68 of the 278 Radiation Oncology providers in Illinois (about 24%) report offering telehealth services in CMS data.
Which cities in Illinois have the most Radiation Oncology providers?Chicago (87), Maywood (17), Springfield (13) have the highest concentration of Radiation Oncology providers in Illinois.
How many Radiation Oncology providers in Illinois received drug or device company payments?123 of 278 Radiation Oncology providers in Illinois (44%) 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 Radiation Oncologists in Illinois work in independent practices or large health systems?Among 166 Radiation Oncologists in Illinois enrolled in Medicare, 7% bill through a solo or small practice with fewer than 10 clinicians, 17% through a mid-size group of 10 to 99, and 76% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Radiation Oncologists in Illinois work at?According to CMS facility affiliation records, the Illinois hospitals where the most Radiation Oncologists hold privileges are Northwestern Medicine Central Dupage Hospital in Winfield; The University of Chicago Medical Center in Chicago; Northwestern Memorial Hospital in Chicago.
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