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Photo of Dr. Bonnie Sun

Bonnie Sun, M.D.

Female  | Languages: English, Korean

Appointment Phone


Main Location

Johns Hopkins Community Physicians - Sibley Memorial Hospital

Out-of-State & International Patients +
Out of State Patients

Call 410-464-6641 (8a.m. to 6p.m., EST, Mon-Fri)

Learn more about our out-of-state patient services »

International Patients

Call +1-410-502-7683 (7a.m. to 6p.m., EST, Mon-Fri)

Learn more about our international patient services »


  • Surgery at Sibley Memorial Hospital


Johns Hopkins Community Physicians - Sibley Memorial Hospital

Appointment Phone: 202-243-5230

5215 Loughboro Road, NW
Suite 300
Washington, DC 20016 map
Phone: 202-243-5230

Johns Hopkins Community Physicians - Breast Health and Surgery

Appointment Phone: 301-530-5151

6420 Rockledge Drive
Bethesda, MD 20817 map
Phone: 301-530-5151


Breast Cancer, Breast Conservation Surgery, Minimally Invasive Surgery, Nipple-Sparing Mastectomy, Oncoplastic Breast Conservation Surgery


Dr. Bonnie Sun is a breast surgeon at Sibley Memorial Hospital and a faculty member of Johns Hopkins School of Medicine. She is board certified in general surgery and practices in Washington, D.C. and Bethesda, MD as a Johns Hopkins Community Physician. 

Dr. Sun has an expertise in breast cancer and is skilled in surgical techniques to improve cosmetic outcomes, such as nipple and skin sparing mastectomy, minimally invasive breast surgery and breast conservation with oncoplastic techniques. 

Dr. Sun earned her medical degree from Pennsylvania State University College of Medicine. She completed a residency in general surgery, followed by a fellowship in breast surgery at University of Southern California Medical Center.

Dr. Sun is a fellow of the American College of Surgeons and a member of the Society of Surgical Oncology, the American Society of Breast Surgeons, the Association of Women Surgeons and the American Society of Clinical Oncology. 

Dr. Sun has conducted research focusing on surgical treatment that improves clinical outcomes, long-term outcomes and postoperative quality of life, as well as clinical advancements in the practice of breast oncologic surgery. She has published numerous scientific papers in national peer-reviewed journals and presented at national meetings. more

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