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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

April 2026

I've have several appointments and encounters at Piedmont Cancer Institute and I can truly say this encounter was above my expectations. I've had the pleasure of obtaining assistance from Trenell. Throughout my appointment Trenell made it their business to answer and questions or concerns that I may have had as well as provide reassurance that I would be taken care of and seen in a timely and effective manner. I'm eternally grateful to Piedmont Career Institute and the amazing staff for always looking out for its patients.

April 2026

Top notch care, seen promptly, Dr. Jonas was fantastic, extremely knowledgeable, reassuring, and on top of everything. Entire team of providers from Scott the NP, to the receptionist and lab personnel, I couldn't have asked for a better experience.

April 2026

Dr. Jonas actually LISTENS to you and tries to address your concerns. He's straight forward with you and doesn't beat around the bush. I appreciate that about him. Great doctor!!!

April 2026

Dr. Jonas was . . . compassionate and confident and reassuring. I love Jackie and Lucille. Compassion pours out of them.

April 2026

Dr Jonas and his care team are exceptional. I reached out over a busy holiday week after a disappointing conversation with another Dr's office. Dr Jonas was personable and caring at a time when we needed it the most. I couldn't recommend him more highly or thank him enough for his care.

April 2026

Dr. Jonas is a very smart Dr. that helps you with your health more than hematology issues. He’s one of the best doctors I’ve ever had in my lifetime.

April 2026

Pleasant

April 2026

Very pleasant

April 2026

Knowledge

April 2026

This Oncologist has been taking care of me for 13 years with stage four lung cancer. If I were to refer any cancer patient, I would refer them to him. He's a very straight shooter and has a sense of humor as well

March 2026

As always, Dr Jonas was cheerful, supportive, and efficient while answering all my questions.

March 2026

Visit was a recheck and Dr Jonas had done his research! He knew my previous "numbers" and explained what I was to do to feel better. He made suggestions for me. I always feel that he is on top of everything going on with his patients! He was my husbands Doctor and we both were more than satisfied with his care for him and now I feel I have complete confidence in diagnosis and treatment. He is always easy to talk with and cares for his patients, answers any questions I may have also! Wouldn't change Doctors for anything, he is the best! He truly knows his profession very well!

March 2026

Dr. Jonas is personable and thorough. Even with seriousness of cancer his attitude is one of care and hope. Always positive.

March 2026

I was welcomed well as usual. Dr Jonas is an exceptional Dr. He is very kind and welcoming. He is very thorough in explaining my health issues. I would recommend my friends and family to Dr Jonas if needed.

March 2026

The visit with Dr. William S. Jonas and his assistant was excellent and courteous. Greeted me with a smile. Explained in detail what was going on with my health. Everyone from the staff was very polite and greeted me with a smile.

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

Seven Atlanta Area Locations

Providing the highest quality cancer treatment services close to home.

WebMD Preferred Provider Castle Connolly Top Physician Practices GASCO Lifetime Group Member Georgia Trend Top Doctors Atlanta Magazine Top Doctors 2024 Atlanta Magazine Top Doctors 2023 Best of Perimeter 2023 Best of North Atlanta 2025 Best of North Atlanta 2024 Atlanta's Best 2023 Kev's Best