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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 in Chicago87 providers
Radiation Oncology in Maywood17 providers
Radiation Oncology in Springfield13 providers
Radiation Oncology in Rockford9 providers
Radiation Oncology in Oak Lawn8 providers
Radiation Oncology in Warrenville8 providers
Radiation Oncology in Peoria7 providers
Radiation Oncology in Elgin6 providers
Radiation Oncology in Aurora6 providers
Radiation Oncology in Hinsdale5 providers
Radiation Oncology in Berwyn5 providers
Radiation Oncology in Urbana5 providers
Radiation Oncology in Joliet5 providers
Radiation Oncology in Bourbonnais4 providers
Radiation Oncology in Decatur4 providers
Radiation Oncology in Zion4 providers
Radiation Oncology in Libertyville4 providers
Radiation Oncology in Elk Grove Village3 providers
Radiation Oncology in Harvey3 providers
Radiation Oncology in Mchenry3 providers
Radiation Oncology in Evanston3 providers
Radiation Oncology in Park Ridge3 providers
Radiation Oncology in Barrington3 providers
Radiation Oncology in Geneva3 providers

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. Joel Schwartz, DO
Niles, IL · $22 in drug and device payments (2025) · (847) 827-9060
Dr. Patrick Fernandes, MD
Normal, IL · No drug or device payments recorded (2025) · Telehealth · (309) 451-2231
Dr. Shermian Woodhouse, MD
Normal, IL · $74 in drug and device payments (2025) · (309) 451-2231
Dr. Elke Aippersbach, M.D.,M.SC.,
Oak Lawn, IL · $1,125 in drug and device payments (2025) · (708) 684-5475
Dr. Ham Lee, MD
Oak Lawn, IL · No drug or device payments recorded (2025) · (708) 346-5475
Dr. Harsha Varadhi, MD
Oak Lawn, IL · No drug or device payments recorded (2025) · (708) 684-5475
Dr. Hyuk Kang, MD
Oak Lawn, IL · $91 in drug and device payments (2025) · (708) 346-3055
Dr. Jayant Ginde, MD
Oak Lawn, IL · $40 in drug and device payments (2025) · (708) 000-0000
Dr. John Morgan, MD
Oak Lawn, IL · $24 in drug and device payments (2025) · (708) 346-3055
Dr. Pramilla Sarin, MD
Oak Lawn, IL · No drug or device payments recorded (2025) · (708) 346-3055
Dr. Steven Engel, M.D.
Oak Lawn, IL · $258 in drug and device payments (2025) · (708) 684-5475
Dr. Camille Williams, MD
O Fallon, IL · No drug or device payments recorded (2025) · (314) 377-3833
Dr. Jacob Witt, M.D.
O Fallon, IL · $2,518 in drug and device payments (2025) · Telehealth · (618) 416-7970
Dr. Ryan Mueller, MD
O Fallon, IL · No drug or device payments recorded (2025) · (618) 416-7970
Dr. Mir Shah, MD
Olympia Fields, IL · No drug or device payments recorded (2025) · (709) 747-4000
Dr. Grace Sun, MD
Orland Park, IL · No drug or device payments recorded (2025) · (708) 448-9393
Dr. Robert Tomchuck, D.O.
Orland Park, IL · No drug or device payments recorded (2025) · (708) 873-4500
Dr. Faisal Vali, M.D.
Palos Heights, IL · $27 in drug and device payments (2025) · (708) 923-3285
Dr. Arica Hirsch, M.D.
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-8030
Dr. Ian Winter, MD
Park Ridge, IL · No drug or device payments recorded (2025) · (847) 723-8030
Dr. Tanya Powell, M.D.
Park Ridge, IL · No drug or device payments recorded (2025) · (630) 205-6612
Dr. Anthony Zalduendo, M.D.
Peoria, IL · No drug or device payments recorded (2025) · (309) 655-6810
Dr. James Mcgee, M.D.
Peoria, IL · No drug or device payments recorded (2025) · (309) 655-6810
Dr. Kevin Lui, MD
Peoria, IL · $158 in drug and device payments (2025) · Telehealth · (309) 655-6810
Dr. Matthew Carpenter, MD
Peoria, IL · No drug or device payments recorded (2025) · (309) 672-5700
Dr. Revathi Swaminathan, M.D.
Peoria, IL · No drug or device payments recorded (2025) · (309) 672-5700
Dr. Roby Lal, DO
Peoria, IL · $20 in drug and device payments (2025) · (309) 672-5702
Dr. William Dunn, MD
Peoria, IL · $1,102 in drug and device payments (2025) · (309) 655-2000
Dr. Mark Khil, M.D.
Quincy, IL · $17 in drug and device payments (2025) · (217) 277-3500
Dr. Robert Johnson, MD
Quincy, IL · $41 in drug and device payments (2025) · (217) 223-8400
Dr. Young Yu, M.D.
Quincy, IL · No drug or device payments recorded (2025) · (217) 223-8400
Dr. George Bryan, MD
Rockford, IL · No drug or device payments recorded (2025) · (815) 226-2000
Dr. Iftekhar Ahmad, M.D.
Rockford, IL · No drug or device payments recorded (2025) · (815) 226-2000
Dr. Jeffrey Radawski, M.D.
Rockford, IL · No drug or device payments recorded (2025) · (779) 696-9400
Dr. John Burnett, M.D.
Rockford, IL · $402 in drug and device payments (2025) · (815) 227-2273
Dr. Joycelyn Speight, M.D., PH.D.
Rockford, IL · No drug or device payments recorded (2025) · Telehealth · (779) 696-9400
Dr. Macklin Nguyen, MD
Rockford, IL · $447 in drug and device payments (2025) · (779) 696-9400
Dr. Maryam Hamidi, M.D.
Rockford, IL · $39 in drug and device payments (2025) · (815) 971-5000
Dr. Prakash Pedapati
Rockford, IL · No drug or device payments recorded (2025) · (779) 696-9400
Dr. Virendra Saxena
Rockford, IL · No drug or device payments recorded (2025) · (815) 961-2030
Dr. Amishi Bajaj, MD
Schaumburg, IL · $353 in drug and device payments (2025) · Telehealth · (630) 469-9200
Dr. Jason Lee, MD
Shiloh, IL · No drug or device payments recorded (2025) · (618) 607-1340
Dr. Susan Laduzinsky, MD
Shiloh, IL · No drug or device payments recorded (2025) · (618) 607-1340
Dr. Benjamin Fischer-valuck, MD
Springfield, IL · $45 in drug and device payments (2025) · Telehealth · (303) 669-1985
Dr. Brian Baumann, MD
Springfield, IL · $9,036 in drug and device payments (2025) · (217) 528-7541
Dr. Bruce Shevlin, MD
Springfield, IL · No drug or device payments recorded (2025) · (217) 525-5666
Dr. Cathy Clausen, M.D.
Springfield, IL · No drug or device payments recorded (2025) · (217) 525-5666
Dr. Christopher Abraham, MD
Springfield, IL · $216 in drug and device payments (2025) · (217) 280-9161
Dr. Christopher Bradbury, M.D., PH.D.
Springfield, IL · $98 in drug and device payments (2025) · (217) 528-7541
Dr. Daniel Ferraro, M.D., PHD
Springfield, IL · $168 in drug and device payments (2025) · (217) 528-7541

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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Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory. Are you a Radiation Oncology in Illinois? Get featured.