logo for print
ATLANTA: 1800 Howell Mill Rd • Suite 800 • Atlanta, GA 30318 • 404-350-9853
FAYETTEVILLE: 1267 Highway 54 West • Suite 4200 • Fayetteville, GA 30214 • 678-829-1060
LOCUST GROVE: 4877 Bill Gardner Pkwy • Locust Grove, GA 30248 • 678-399-7190
NEWNAN: 775 Poplar Rd. • Suite 310 • Newnan, GA 30265 • 770-251-2590
SANDY SPRINGS: 755 Mount Vernon Hwy NE • Suite 320 • Atlanta, GA 30328 • 404-350-8711
STOCKBRIDGE: 290 Country Club Drive • Suite 100 • Stockbridge, GA 30281 • 678-854-9500

Meet William S. Jonas, MD

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.

Professional Affiliations

Publications & Contributions

  • Georgia Comprehensive Sickle Cell Center at Grady Health System Award of Appreciation
  • Translation of Innovative Designs into Phase I Trials. Journal of Clinical Oncology
  • Cancer: Principles and Practice of Oncology Review
  • The promise of immunotherapy in prostate cancer: From concept to reality
  • A Multidisciplinary Care Management Program for Patients with Sickle Cell Syndromes Significantly Reduces Health Care Resource Utilization

Appointments & Presentations

  • Past President of Medical Staff - Piedmont Hospital
  • Past Chair, Department of Medicine - Piedmont Hospital
  • Past Presenter - American Society of Hematology

Testimonials from Dr. Jonas's Patients

June 2025

Everyone at PCI is welcoming and helpful...staff is amazing! I have been a patient of Dr. Jonas for 18 years. His caring attitude and will can attitude were imperative in my approach to treatment. And now as a survivor for many years, my annual visit is more like catching up with an old friend than an annual checkup. I cannot say enough good things about Dr. Jonas and the staff at Piedmont Cancer Institute!

June 2025

This is an outstanding physician/specialist with great knowledge, but patience and compassion and tremendous "people skills." His demeanor is reassuring and instills confidence in his care. The office is efficient and busy, yet as a patient, one never feels rushed. Everybody in the office, from receptionists to the blood techs to the nurses have outstanding personalities and tremendous knowledge. I am early in my "journey" with Dr. Jonas, but I feel that I am in really excellent hands.

June 2025

Piedmont Cancer Institute offers the absolute best of care. Dr. Jonas is amazing! Answered any questions eagerly. He's the most thorough physician that I've ever had take care of me.

June 2025

Always respectful of your time. You are usually seen within 5-10 minutes of your scheduled appointment time. Dr Jonas is always thorough and fully explains the what and why he is making the recommendations concerning your healthcare. He ask questions and listens to your responses before providing input.

June 2025

Dr Jonas is always good about providing the "why". Why we're doing something, why it's needed, why it can make a difference.

June 2025

Always see within 10 minutes of appt time. Entire staff very professional.

June 2025

Dr, Jonas is thorough and attentive to symptom and medication changes. He interprets lab results for me and I'm very grateful he is overseeing my treatment!

June 2025

Always a pleasure to visit Dr Jonas - he is extremely knowledgeable and clearly explains his findings from my blood work. Highly recommend Dr Jonas and his fantastic team.

June 2025

Dr. Jonas continues to have the proper balance between courtesy, respect and professionalism throughout the patient experience. I have been in his care 4 years and can say the same about his colleagues and staff.

June 2025

Very impressed with everyone from check-In, to the nurse, to the Lab Tech, to the PA and Dr Jonas. He and his staff have an incredible down to earth but very professional attitude. Dr. Jonas had to deliver news I did not want to hear. I left feeling I had the best possible team looking after me. Dr. Jonas communication and demeanor are only exceeded by his Medical expertise. I highly recommend Dr. Jonas and his entire team.

June 2025

I always enjoy visiting Dr. Jonas. He is very knowledgeable and answer all my questions. He is a very positve person and he passes that on to us.

June 2025

Dr. Jonas and his PA Allison have the best beside manner. They make you feel so comfortable and welcome. They explain everything in detail to where you can understand. I am so glad my PCP referred me to him.

May 2025

Dr Jonas has been my oncologist for 10 years and has taken the best care of me. He also always asks about my family. He has always made me comfortable with our treatment decisions. I've recommended him to friends. Do not hesitate to contact him if you need oncology care.

April 2025

Dr Jonas is a ray of sunshine at a dark time. His confidence in my treatment, his ability to help me understand the ups and downs of my disease, and the thoroughness and professionalism of his staff has made this as good of an experience as I could ask for. Thank you!

April 2025

I've been a patient of Dr. Jonas for eleven years and I'm so thankful I was referred to him. He is a very knowledgeable, informative, thorough, kind, caring, and patient physician who has, and expresses, a lot of concern for his patients. Scheduling, and rescheduling appointments has been very good. His staff, that I've come in contact with, all have the same professional, cheerful, and kind attitude as he has. He has always come into the room with a cheerful and happy mood. I feel confident with the information he gives about my health; and the suggestions, instructions, recommendations, he gives me. There has never been a question or concern that I've had that he didn't take the time to answer; and always in a way that was easily understood. I've never regretted going to an appointment with him, and I know I can trust him to tell me the truth about any concerns or questions I have and about any health issues. He has always given excellent service and I would definitely recommend him to others.

View Testimonials About PCI

Office Locations

William S. Jonas, MD sees patients at the following PCI offices.

The Atlanta office of Piedmont Cancer Institute | Atlanta Oncologists

Atlanta

1800 Howell Mill Rd, Suite 800, Atlanta, GA 30318

404-350-9853

Map & Directions

Six Atlanta Area Locations

Providing the highest quality cancer treatment services close to home.

WebMD Preferred Provider Castle Connolly Top Physician Practices Castle Connolly Top Doctors 2024 Castle Connolly Top Doctors 2023 Castle Connolly Top Doctors 2022 GASCO Lifetime Group Member Georgia Trend Top Doctors Atlanta Magazine Top Doctors 2023 Atlanta Magazine Top Doctors 2023 Best of Perimeter 2023 Best of Perimeter 2023 Best of North Atlanta 2024 Best of North Atlanta 2023 Best of North Atlanta 2022 Atlanta's Best 2023 Kev's Best