Clinical Fellowship
- Hematology-Oncology, Emory University School of Medicine
Internship and Residency
- Internal Medicine, Emory University School of Medicine
Medical School
- MCP Hahnemann School of Medicine, Philadelphia, Pennsylvania

Dr. William Jonas is an experienced oncologist and hematologist at Piedmont Cancer Institute and is the former President of the medical staff at Piedmont Hospital. He treats patients with all cancer types given his extensive experience in oncology and hematology.
Dr. Jonas is very patient, and he is always pleasant. He tries to truly treat the source of an issue, and I really appreciate him for this. I will continue to recommend him to others. Thank you, Dr. Jonas!
This was my first appointment. I was welcomed well. Everyone was very professional. The PA came in first, to go over my health. Very nice young lady. Dr. Jonas came in next, he's a very nice person as well, he's also funny. Overall, I do believe that he is a fantastic Dr. that has a great wealth of knowledge and beyond to care for his patients. Attention, knowledge and caring will go a long way. Thank U! Both
Dr Jonas showed a lot of care and concern at a time when we were worried about my prognosis. His calm and confident demeanor was comforting and I couldn't recommend him enough. His office staff is top notch and they were very helpful (thank you Tracey) over a hectic holiday time. Overall, Dr Jonas possesses everything I think about when looking for a healthcare professional. He is exceptionally professional and is blessed with a quick warm sense of humor at a time when it's needed most. I pray Gods blessing on him/family, his many patients and his staff.
Piedmont Cancer Institute is an exceptional organization for the treatment of cancer. Working with the doctors and staff is an important part of the healing process. Dr. Jonas is expert in his craft and has been strength and comfort in my journey. I respect Dr. Jonas and gladly would refer his services at Piedmont Cancer Institute.
I came to Dr. Jonas for a second opinion. I have stage 3 colon cancer, and I wanted his recommendation for post op treatment. I found him to be very approachable, and easy to understand. He impressed me as genuinely caring, vastly experienced, and very professional. He quickly established trust, and if I was located near his office, he would be my first choice for treatment. I also found his staff to be helpful and knowledgeable.
Timely, courteous, professional. Of all the many patients Dr. Jonas sees he makes you feel that he knows you personally. Thank God for Dr. Jonas' skilled hands and care to treat those many in need. Cancer is a beast and Jonas is a slayer for health. The world needs more like Dr. Jonas!
Dr Jonas immediately had me convinced we would get along. He made me feel at ease. Wonderful sense of humor and serious when he need be.
Dr. Jonas is very pleasant, courteous, thorough and caring. He listens and answers questions and it's easy to talk to him about concerns. His staff is courteous also.
Dr. Jonas is amazing. I felt very comfortable with him right away during my first visit. Extremely friendly and gives you information in a positive light.
I have been a patient of Dr. Jonas for years now and he's brilliant and I know I'm the best hands. He listens, he remembers and his bedside manner is everything.
I've been a patient of Dr. Jonas for years. He's currently following me after my successful treatment. He is so kind, thorough, knowledgeable and a great communicator. My husband is also a patient and has received wonderful care as well. Additionally, Dr Jonas has a fabulous team always making us feel cared for and secure. So grateful!
William S. Jonas, MD sees patients at the following PCI offices.
1800 Howell Mill Rd, Suite 800, Atlanta, GA 30318
Providing the highest quality cancer treatment services close to home.