Cancer Care Specialists of Illinois Welcomes Radwan H. Diab, MD

(Decatur, IL) – Cancer Care Specialists of Illinois (CCSI) is pleased to announce the addition of Dr. Radwan H. Diab, medical oncologist/hematologist, to its practice in July 2026. Dr. Diab primarily sees patients at the Cancer Care Center of Decatur and also provides coverage at CCSI clinics throughout central Illinois.

“Cancer Care is excited to welcome Dr. Diab and his wife to Cancer Care Specialists. Dr. Diab has joined our team of accomplished physicians and advanced practice providers at the Cancer Care Center of Decatur. He will be a valued part of providing excellent cancer care to patients in the Decatur area. We are fortunate to have Dr. Diab in our community. He is a compassionate and intelligent physician and already a respected colleague and friend.” – Justin D. Floyd, DO, FACOI, President of Cancer Care Specialists of Illinois

Dr. Diab earned his Doctor of Medicine degree from the American University of Beirut in Lebanon in 2018. He completed his residency in Internal Medicine at the University of Kansas School of Medicine in Wichita, Kansas, followed by a fellowship in Hematology and Medical Oncology at Tulane University School of Medicine in New Orleans, Louisiana.

“I am honored to join CCSI and its outstanding team of physicians and staff. My goal is to provide compassionate, personalized care while ensuring every patient feels heard, supported, and informed throughout their treatment journey. I look forward to serving our community and helping patients access the latest advances in hematology and oncology.” – Radwan H. Diab, MD.

Dr. Diab is board certified in Internal Medicine and Hematology and board eligible in Medical Oncology. He is a member of the American Society of Hematology, the American Society of Clinical Oncology, and the American College of Physicians.

To learn more and read Dr. Diab’s complete bio, visit his profile page.