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Bonnie Sun

Bonnie Sun, MD

Breast Surgical Oncology

Breast Surgery

Accepting New Patients
4.9 of 5 stars176 ratings, 73 reviews

Highlights

Languages

  • Korean
  • English

Gender

Female

Johns Hopkins Affiliations:

  • Johns Hopkins School of Medicine Faculty

About Bonnie Sun

Professional Titles

  • Breast Surgery Clinical Associate

Primary Academic Title

Assistant Professor of Surgery

Background

Dr. Bonnie Sun is an assistant professor of surgery and breast surgeon at Suburban Hospital and a faculty member of Johns Hopkins School of Medicine. She 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. 

Locations

  1. Johns Hopkins Health Care & Surgery Center — Bethesda
    • 6420 Rockledge Drive, Suite 4100, Bethesda, MD 20817

    Expertise

    Education

    Keck School of Medicine of USC

    Fellowship, Breast Surgery, 2012

    Keck School of Medicine of USC

    Residency, General Surgery, 2011

    Pennsylvania State College of Medicine

    Medical Education, MD, 2006

    Board Certifications

    Surgery

    American Board of Surgery, 2011

    Insurance

    Johns Hopkins providers accept various commercial health insurance plans. However, they may not be included in all of an insurance company's plans or offerings. This may include Exchange, Medicaid, Medicare, and specific limited benefit plans. Exceptions to participation also exist based on your employer’s benefits package and the provider's location or specialty. Please contact your insurer directly to make sure your doctor is covered by your plan. For more details, please review our Insurance Information.
    Search plans
    • Aetna
    • CareFirst
    • Cigna
    • First Health
    • Geisinger Health Plan
    • HealthSmart/Accel
    • Humana
    • Johns Hopkins Health Plans
    • MultiPlan
    • Pennsylvania's Preferred Health Networks (PPHN)
    • Point Comfort Underwriters
    • Private Healthcare Systems (PHCS)
    • UnitedHealthcare
    • Veteran Affairs Community Care Network (Optum-VACCN)

    Ratings & Reviews

    4.9 out of 5

    176 ratings, 73 reviews

    The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

    Overall Rating by Patient
    Average provider Overall Rating by Patient rating 4.8 out of 5 stars
    Provider Listened Carefully
    Average provider Provider Listened Carefully rating 4.9 out of 5 stars
    Provider Explained Things Clearly
    Average provider Provider Explained Things Clearly rating 4.9 out of 5 stars
    Provider Knew Medical History
    Average provider Provider Knew Medical History rating 4.9 out of 5 stars
    Provider Showed Respect
    Average provider Provider Showed Respect rating 4.9 out of 5 stars
    Provider Spent Enough Time
    Average provider Provider Spent Enough Time rating 4.9 out of 5 stars
    Search reviews
      5 out of 5 stars
      Reviewed on 3/13/2025

      Very professional

      5 out of 5 stars
      Reviewed on 2/20/2025

      Very professional and easy to talk with.

      5 out of 5 stars
      Reviewed on 2/14/2025

      Dr Sun is the absolute best surgeon and physician. She is smart, caring, and thorough. I adore her.

      5 out of 5 stars
      Reviewed on 1/29/2025

      I came to Dr. Sun because I am high risk for breast cancer and was interested in a prophylactic mastectomy. She was so amazing. She listened to all my concerns and spent so much time with me for a very overwhelming decision. She was so thorough, honest and a great listener.

      5 out of 5 stars
      Reviewed on 1/23/2025

      Dr. Sun spent a great deal of time answering questions and addressing all of our concerns.

      5 out of 5 stars
      Reviewed on 1/23/2025

      When I called the office to schedule my appointment, they were able to retrieve my records and schedule my appointment quickly.

      5 out of 5 stars
      Reviewed on 1/22/2025

      Excellent

      5 out of 5 stars
      Reviewed on 1/16/2025

      Dr Sun seems very good at her job.

      5 out of 5 stars
      Reviewed on 1/15/2025

      Dr. Sun is a very well spoken professional and I was impressed with her overall knowledge on my health and family history.

      5 out of 5 stars
      Reviewed on 1/2/2025

      Dr. Sun is excellent. She listens to her patients and takes the time to explain the planned surgical procedure and made sure all questions were addressed.

      5 out of 5 stars
      Reviewed on 12/20/2024

      The provider was patient and good overall.

      5 out of 5 stars
      Reviewed on 12/19/2024

      Dr. Sun was very personable and caring. She wrote everything down which I appreciate since you are hearing but not necessarily processing all of the information when it isn't great news. She made me feel at ease with her manner and the way she spoke with me which was very honest yet comforting at the same time.

      5 out of 5 stars
      Reviewed on 12/18/2024

      Very good and kind

      5 out of 5 stars
      Reviewed on 12/5/2024

      Excellent

      5 out of 5 stars
      Reviewed on 11/22/2024

      Dr Sun is an excellent provider. Compassionate and takes time to explain things and and makes the patient feel comfortable

      5 out of 5 stars
      Reviewed on 11/14/2024

      The provider was extremely good

      5 out of 5 stars
      Reviewed on 11/13/2024

      Dr Sun is the best. Fantastic surgeon. Perfect results. Great bedside manner.

      5 out of 5 stars
      Reviewed on 11/7/2024

      Excellent; attentive

      5 out of 5 stars
      Reviewed on 11/6/2024

      Dr. Sun is very patient, caring, and very good listener and speaker.

      5 out of 5 stars
      Reviewed on 11/6/2024

      Dr Sun is the absolute best! Her care, and follow-up care, make me feel safe and secure in the whole cancer-care process.

      5 out of 5 stars
      Reviewed on 11/1/2024

      Dr.Sun Was very thorough very understanding and a pleasure to work with

      5 out of 5 stars
      Reviewed on 10/30/2024

      Dr. Sun is a very friendly.

      5 out of 5 stars
      Reviewed on 10/23/2024

      Dr. Sun is exceptional and extraordinary. She is dealing with people newly diagnosed with breast cancer, who are scared, uncertain, and upset. She explains things in a thorough and easy to digest manner, with gentle kindness yet still with a clarity that instills confidence in her skill. She answered all of my questions (some of which were challenging because I am a cancer care professional myself and a senior scientist), and spent a lot of time with me. I cannot say enough good things about Dr. Sun and her care---she is a JHH treasure!

      5 out of 5 stars
      Reviewed on 10/16/2024

      Dr. Bonnie Sun took her time to explain everything very clear and she is attentive

      5 out of 5 stars
      Reviewed on 10/16/2024

      Excellent, always make me feel comfortable. She so positive. So friendly.

      5 out of 5 stars
      Reviewed on 10/9/2024

      The entire breast surgery process was excellent.

      5 out of 5 stars
      Reviewed on 10/9/2024

      Dr. Sun is Knowledgeable, caring, understanding, empathetic and even though we are going through this situation again my mind is at ease that we will make it through this too.

      5 out of 5 stars
      Reviewed on 10/2/2024

      Dr. Sun was thorough and took time to discuss imaging results and how that would inform my surgical options.

      5 out of 5 stars
      Reviewed on 10/2/2024

      The provider, Dr. Bonnie Sun, is outstanding. She provided very full information in clear and balanced fashion and listened closely to my views and preferences before giving her recommendations. She also gave me some absolutely vital information about risk factors that another doctor had failed to give me. I feel indebted to her.

      5 out of 5 stars
      Reviewed on 9/26/2024

      Thorough, patient, not rushed

      5 out of 5 stars
      Reviewed on 9/25/2024

      She is an amazing surgeon, and I look so much better than I expected

      5 out of 5 stars
      Reviewed on 9/25/2024

      Dr. Sun was very kind, patient, and explained my cancer & treatment thouroughly.

      5 out of 5 stars
      Reviewed on 9/18/2024

      Very knowledgeable

      5 out of 5 stars
      Reviewed on 9/18/2024

      Excellent

      5 out of 5 stars
      Reviewed on 9/12/2024

      Very professional. She made me feel comfortable.

      5 out of 5 stars
      Reviewed on 9/11/2024

      She was friendly and spent a while listening to my concerns and explaining the procedure

      5 out of 5 stars
      Reviewed on 8/28/2024

      The Front Desk was very helper. I was given instructions before, during and after my consultation. The Dr. Knows her stuff. Her bedside manner. Thank you!

      5 out of 5 stars
      Reviewed on 8/21/2024

      Dr Sun is phenomenal. She caught my cancer early and saved me from needing chemo and radiation. I would recommend her to anyone. And she is an excellent surgeon.

      5 out of 5 stars
      Reviewed on 8/21/2024

      Dr Bonnie Sun is a terrific breast surgeon. Her work was done exceedingly well. Would absolutely recommend the Johns Hopkins practice to anyone diagnosed with breast cancer.

      5 out of 5 stars
      Reviewed on 8/2/2024

      Dr Sun was very patient and took the time to explain things to me and answered my questions. She was very knowledgeable and understanding

      5 out of 5 stars
      Reviewed on 7/25/2024

      Dr. Sun is one of the best physician communicators that I have ever experienced. She was empathic, concise, and drew pictures and took notes for me to explain my medical situation and next steps. Her personality, expertise, and communication style increased my comfort about my medical concern and confidence in her as my surgeon.

      5 out of 5 stars
      Reviewed on 7/18/2024

      Dr Sun is always provides excellent care. Her bedside manner is good and she takes time to listen and explain everything in detail.

      5 out of 5 stars
      Reviewed on 7/17/2024

      Dr. Sun is everything you want in a physician.

      5 out of 5 stars
      Reviewed on 7/17/2024

      I was very pleased with Dr. Sun and very comfortable and confident about her caring for my current health concerns.

      5 out of 5 stars
      Reviewed on 7/12/2024

      She's outstanding in her field.

      5 out of 5 stars
      Reviewed on 7/11/2024

      Dr sun was great. She made me feel at ease and explained everything carefully.

      5 out of 5 stars
      Reviewed on 7/11/2024

      Dr Sun is an excellent surgeon and her bedside manner is wonderful. She is verygood at explaining things so that you understand.

      5 out of 5 stars
      Reviewed on 7/11/2024

      Very professional

      5 out of 5 stars
      Reviewed on 7/11/2024

      Excellent doctor, very nice and patient! Very good at explaining of the pluses and minuses of different aspects of the breast cancer surgery.

      5 out of 5 stars
      Reviewed on 6/28/2024

      Dr. Sun was very caring, professional and detailed in her explanation.

      5 out of 5 stars
      Reviewed on 6/27/2024

      Dr. Sun was an excellent surgeon to meet with prior to surgery. She provided me with thorough information and help me understand the process.

      5 out of 5 stars
      Reviewed on 6/27/2024

      Excellent, caring, respectful

      5 out of 5 stars
      Reviewed on 6/26/2024

      Explained upcoming surgery very well. Extremely easy to converse with, a most enjoyable time with a very thorough exam. I left Dr Sun's office feeling very relaxed with hervperforming my breast surgery.

      5 out of 5 stars
      Reviewed on 6/26/2024

      Dr. Sun is not only a great physician but also a very kind and compassionate human being. She listens, cares, explains and answers all the questions. I feel I'm in great hands.

      5 out of 5 stars
      Reviewed on 5/16/2024

      Provided excellent treatment plan, clearly explained options, listened to my concerns.

      5 out of 5 stars
      Reviewed on 5/15/2024

      Dr Sun was very pleasant and knowledgeable in telling me about what to expect with my cancer diagnosis.

      5 out of 5 stars
      Reviewed on 5/15/2024

      Dr. Sun was very good. She listened to me and conversed in Korean, my native language. Her advice was very helpful.

      5 out of 5 stars
      Reviewed on 5/10/2024

      Dr Sun was very personable and polite. She was very detailed and honest with explaining my diagnosis. I appreciated that she didn't rush my visit. She answered all our questions.

      5 out of 5 stars
      Reviewed on 5/9/2024

      Dr. Sun was very helpful and caring.

      5 out of 5 stars
      Reviewed on 5/9/2024

      Dr. Sun is fantastic because she took time to explain clearly of my diagnosis and explained the steps that needed for me to participate before I make my final decision of the tx that I needed.

      5 out of 5 stars
      Reviewed on 5/9/2024

      Dr Sun is the best doctor

      5 out of 5 stars
      Reviewed on 5/2/2024

      Dr Sun is thorough, knowledgeable, caring, and professional. She made sure she gave me all the information I needed about my condition, progress, and continued recovery from surgery. She also referred me to other specialists for consultations on filoow up care.

      5 out of 5 stars
      Reviewed on 5/2/2024

      I appreciate Dr. Sun patience, compassion, and thoroughness in explaining my next steps. I felt hat Dr. Sun care about me and my progress. Dr. Sun is an awesome doctor.

      1 out of 5 stars
      Reviewed on 5/2/2024

      Dr. Sun was inarticulate, couple not answer basic medical questions and came across as having little experience. I would absolutely NOT let her do surgery on me and will advise others to avoid her practice

      5 out of 5 stars
      Reviewed on 5/1/2024

      Excellet in every way

      5 out of 5 stars
      Reviewed on 4/26/2024

      Dr. Sun is one of the best doctors I've even had - and I'm in my 70s with lots of health issues. Caring, concerned, excellent listener, terrific at explaining scary stuff to a patient!

      5 out of 5 stars
      Reviewed on 4/24/2024

      Dr Sun is.the very best I have ever had i.am blessed toHave her as surgeon

      5 out of 5 stars
      Reviewed on 4/18/2024

      I feel great that Dr Sun will be my breast surgeon!

      5 out of 5 stars
      Reviewed on 4/10/2024

      Shes the best.

      5 out of 5 stars
      Reviewed on 4/10/2024

      She is young and looks positive, talking slowly give a patient a sense of stability and makes me calm.

      5 out of 5 stars
      Reviewed on 4/10/2024

      I liked her and what she said in mtg, but also got excellent references from friends' family members who saw her for the same diagnosis.

      5 out of 5 stars
      Reviewed on 4/4/2024

      Knowledgeable, kind, good bedside manner

      5 out of 5 stars
      Reviewed on 4/4/2024

      Excellent visit - very careful- and caring - explanations of my issues.