Dr. John Stewart is a board-certified radiation oncologist with a strong commitment to delivering thoughtful, personalized care to individuals facing cancer. He joined AO Multispecialty Clinic’s Radiation Oncology team in 2025, practicing at our leading-edge Cancer Care Center in North Augusta.

As a graduate of the Medical College of Georgia, Dr. Stewart completed his internship in internal medicine through the HCA Healthcare/Mercer University program at Memorial Health University Medical Center. He then went on to complete his residency in Radiation Oncology at the University of Alabama Medical Center, where he trained extensively in advanced radiation techniques and cancer treatment planning.

Dr. Stewart has experience treating a wide range of cancers, with special clinical interest in lung cancer, metastatic disease of the respiratory system, and prostate cancer. He believes in building trust through clear communication and empathy, taking time to ensure his patients feel informed and supported throughout their care.

Monday – Friday 8:30AM – 5:00PM
Saturday Closed
Sunday Closed

 WEST AUGUSTA
3696 Wheeler Road
Augusta, GA 30909
(706) 736-1830 

DOWNTOWN AUGUSTA
1303 D’Antignac St, Ste. 1000
Augusta, Ga. 30901
(706) 821-2944 

NORTH AUGUSTA
150 Bluff Ave.
North Augusta, SC 29841
(706) 736-1830

 AIKEN
222 University Pkwy
Aiken, SC 29801
(803) 306-1438 

ESSENTIALS CENTER
1220 George C Wilson Dr
Augusta, GA 30909
(706) 941-8206