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Sonia Cohen

Sonia Cohen, MD, PhD

General Surgery

Highlights

Age Groups Seen

  • Adults
  • Geriatrics

Languages

  • English

Gender

Female

About Sonia Cohen

Dr. Sonia Cohen is a Surgical Oncologist caring for patients with Sarcoma and Melanoma at the Massachusetts General Hospital. She received her undergraduate degree from The Johns Hopkins University, her PhD in Genetics from Harvard University, and her medical degree from the Health Science and Technology Program at Harvard Medical School and the Massachusetts Institute of Technology. Dr. Cohen then completed her surgical training at the Massachusetts General Hospital and clinical fellowship in Complex General Surgical Oncology at Memorial Sloan Kettering Cancer Center. Dr. Cohen’s research is focused on understanding how changes in the structure and regulation of the genome give rise to cancer, with a particular focus on developing prognostic tools and novel therapeutics for Soft Tissue Sarcomas and Melanomas.

Locations

  1. Mass General Brigham Cancer Institute Surgical Oncology Clinic
  2. Massachusetts General - General & Gastrointestinal Surgery Clinic
    • 52 Second Avenue, Blue Building, 3rd Floor, Suite 3200, Waltham, MA 02451
    • Get Directions
  3. Mass General Brigham Cancer Institute Surgical Oncology
    • 55 Fruit Street, Wang Building, 4th Floor, Suite 460, Boston, MA 02114
    • Get Directions
  4. Mass General Brigham Cancer Institute Melanoma and Pigmented Lesion Center
    • 32 Fruit Street, Yawkey Building, 7th Floor, Suite 7e, Boston, MA 02114
    • Get Directions
  5. Mass Eye and Ear Head and Neck Cancer Program

Expertise

Education

  • Fellowship: Memorial Sloan Kettering Cancer Center, Surgical Oncology, 2020
  • Residency: Massachusetts General Hospital, General Surgery, 2018
  • Medical Education: Harvard Medical School, 2013

Board Certifications

  • Complex General Surgical Oncology: American Board of Surgery, 2021
  • Surgery (General Surgery): American Board of Surgery, 2019

Insurance

This provider may accept more insurance plans than shown. Please call the practice to find out if your plan is accepted.
Search plans
  • Aetna
  • Beech Street
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield Medicare
  • Cigna
  • Commonwealth Care Alliance
  • Community Health Options
  • Coventry
  • Fallon Health
  • Harvard Pilgrim Health Care
  • Humana
  • Maine Community Health Options
  • Mass General Brigham Health Plan
  • MassHealth
  • Medicaid CT
  • Medicaid ME
  • Medicaid NH
  • Medicaid RI
  • Medicaid VT
  • Medicare
  • Medicare ACO
  • Multiplan
  • Senior Whole Health
  • TriCare
  • Tufts Health Plan
  • Tufts Medicare Preferred
  • Tufts Public Health Plan
  • United Health Care
  • Wellpoint
  • WellSense

Ratings & Reviews

4.9 out of 5

149 ratings, 65 reviews

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

How likely would you be to recommend this provider to your family and friends?
Search reviews
  • Reviewed on 1/7/2026

    Dr. Sonia Cohen was excellent. She was warm, attentive, and thorough explaining what I needed to know regarding my melanoma. An amazing visit,

  • Reviewed on 1/5/2026

    This is my first meeting with DR Cohen and I was pleased with her demeanor and her plans to treat my specific issue. I left Mass General confident that meeting with DR Cohen was a good decision.

  • Reviewed on 12/22/2025

    Expert care

  • Reviewed on 12/22/2025

    This was just my first visit. I'll know more about Mass General in the future. In retrospect, I did not talk to a nurse.

  • Reviewed on 12/17/2025

    Yes it was a very professional experience that I had with the doctors and nurses at Mass General Hospital I appreciate it very much. My care was fantastic and my feedback from everything was in A Plus thank you very much and have a great day.

  • Reviewed on 12/15/2025

    Dr. Cohen was terrific in explaining my condition and what she proposed for treatment. She answered all my questions patiently and clearly. She gave me great confidence in the care I was receiving. Definitely pleased that I was referred to her and that she will be managing my care.

  • Reviewed on 12/12/2025

    Dr. Cohen is excellent.

  • Reviewed on 12/8/2025

    Great Doctor

  • Reviewed on 11/27/2025

    Dr. Cohen was kind, professional, compassionate, and caring during my visit with her. I would highly recommend her to anyone.

  • Reviewed on 11/24/2025

    Everyone at MGH treated me with respect and professionalism.

  • Reviewed on 11/23/2025

    Dr.Cohen, was very professional and attentive to my situation. Her personality made me comfortable right away. Dr. Cohen explained the procedure in a way that was understandable,she was specific and made me feel comfortable.

  • Reviewed on 11/20/2025

    From the beginning of the consultation, and throughout, I felt comfortable and positive with Dr. Cohen. Her explanation of the issues involved were clear and complete. I left the meeting with a sense of confidence

  • Reviewed on 11/13/2025

    I had a very positive experience with Dr Cohen.

  • Reviewed on 11/12/2025

    I was impressed with the teamwork from all the providers i saw on [redacted] and am confident in the care i will receive in the coming days and weeks ahead

  • Reviewed on 11/10/2025

    Dr Cohen was professional courteous and kind. She explained everything that I needed to know about my situation. I was very appreciative of her service and glad I ended up as her patient. She put me at ease

  • Reviewed on 11/6/2025

    She was very clear in responding to my questions and concerns, as well as explaining the next steps in the treatment protocol.

  • Reviewed on 11/5/2025

    She was great!

  • Reviewed on 11/6/2025

    I couldn't be more grateful to what Mass General and this provider have done for me. They saved my life and I couldn't be more grateful. And I would recommend them highly to anybody. I've got the best care possible. Thank you very much.

  • Reviewed on 11/3/2025

    Doctor is extremely personable. Very easy to understand what she was explaining

  • Reviewed on 11/3/2025

    She was caring,,interested, approachable, and she truly cared about me.

  • Reviewed on 10/22/2025

    My wife and daughter were present with me at this my first visit with Dr. Cohen and the three of us were very pleased with how she handled the whole visit; meeting and greeting us, listening to what we had to say and what she had to say about my skin cancers and her description of how she would treat them.

  • Reviewed on 10/20/2025

    She looks at me when having a conversation and treats me with respect and kindness

  • Reviewed on 10/16/2025

    All good.

  • Reviewed on 10/15/2025

    Dr. Cohen is amazing! She has operated on me twice now, and both experiences have been as pleasant as possible. She listens, talks through my options, and respects my preferences. I'm grateful for her and her care!

  • Reviewed on 10/13/2025

    She was making sure that I understood everything about the upcoming surgery and was very patient with my concerns! They were wonderful!!

  • Reviewed on 10/13/2025

    She was very knowledgeable

  • Reviewed on 10/1/2025

    Dr Cohen was very easy to talk to and explained the procedure very patiently and thoroughly. I feel confident about my upcoming surgery

  • Reviewed on 9/17/2025

    They made me feel safe, I trust I am getting the best care, diagnosis, and treatment possible. The doctors have given me hope in my recovery.

  • Reviewed on 9/18/2025

    Exceptional , exceptional , care from the entire cancer surgical staff and Dr Cohen and her surgical team !!! They deserve an "over the top " reward!

  • Reviewed on 9/17/2025

    Very good and profesdional

  • Reviewed on 9/17/2025

    Dr. Cohen could not have been any more amazing to meet with. This was my first time being in the hospital for anything. And of course, it's a little bit disconcerting when it's for something like melanoma. But she was totally informative, like drew a whole diagram, like explained every single step of like, if this happens, then we'll do this. If that happens, then we'll do that. So I left there with a lot of confidence. that I understood what the next steps were and what options were along the way. And she just really took her time and made sure that I understood things and asked a lot of questions to make sure that I was understanding and just was a very calming presence and just a really great experience with a doctor, which isn't always the case. She just definitely made it obvious that she was

  • Reviewed on 9/10/2025

    She was thorough and helpful and answered all of my questions. This was a consultation bout further treatment options. She definitely urged me to continue to work with her and to have any further treatment at MGH.

  • Reviewed on 8/27/2025

    Tremendous care and utmost concern.

  • Reviewed on 8/25/2025

    [redacted] Dr Cohen was kind, pleasant, caring and encouraging. She ordered a needle biopsy which I had within 30 minutes of leaving her office I am very impressed with this office and staff

  • Reviewed on 8/20/2025

    I was very pleased with everybody that treated me. Everybody was wonderful. I'm having more treatments with her later, but everything went very well. I was very pleased. Thank you.

  • Reviewed on 8/13/2025

    Very good. Very professional. Very good. All the doctors, the nurses, and the assistants.

  • Reviewed on 8/13/2025

    Dr. Cohen provided a simple, lucid diagram of how melanoma sits beneath the dermis and, over time, may drop down into deeper layers, including the layer of fat, to spread throughout the body.

  • Reviewed on 8/13/2025

    My husband, and myself trust Dr. Cohen with our body and soul!! She remembers us, and knows my issues!! No person better to have my back..

  • Reviewed on 8/11/2025

    I was impressed with the friendliness and in depth communication. Very sure I was able to get my full condern expressed and even more imnoressed with the doctor's handling of her concern as the exam was being conducted. She ordered other tests just to be sure she has the full picture,

  • Reviewed on 8/4/2025

    Sonia was a wealth of information and clearly explained my diagnosis and prognosis. I trust her with my care because of her explanation and knowledge.

  • Reviewed on 8/4/2025

    it was fast and easy the biopsy from a different hospital took 4 times longer and more stressful

  • Reviewed on 8/4/2025

    Excellent knowledge. Very professional and sociable.

  • Reviewed on 8/6/2025

    Very professional, affable, informative, and very friendly. I was very comfortable working with her. She was excellent in explaining things to me clearly and answering all my questions and a straightforward, understandable way.

  • Reviewed on 7/29/2025

    First visit and was knowledgeable about my medical condition.

  • Reviewed on 7/21/2025

    Doctor was very nice and professional explained my situation and let me know possible avenues of testing available to provide needed care.

  • Reviewed on 7/16/2025

    Dr cohen was wonderful in providing information to me and also asking if I had any questions of her.

  • Reviewed on 7/9/2025

    Sonia Cohen was wonderful. She asked all the questions and waited and listened to my concerns. She was very thoughtful and thorough talking threw the next steps. I can't say this enough she was amazing!

  • Reviewed on 7/8/2025

    She answered all my questions and felt I should not delay treatment.

  • Reviewed on 7/1/2025

    Very happy with Dr. Cohen. She's capable, friendly, and informative. Had a good experience with her a few years ago, and called to see her specifically this time.

  • Reviewed on 6/30/2025

    She was very knowledgeable open and honest

  • Reviewed on 6/29/2025

    Patient, friendly and professional

  • Reviewed on 6/16/2025

    Wonderful interaction. Clear and concise information.

  • Reviewed on 6/13/2025

    Dr. Cohen was absolutely terrific. I felt very confident and comfortable with her, and I would give her easy 10 stars out of 10 stars. [redacted] The appointment was very, very quick, faster than I had expected, and I was very, very pleased overall with everything.

  • Reviewed on 6/12/2025

    Thorough and caring. Excellent examination in conjunction with a very thorough ultrasound.

  • Reviewed on 6/12/2025

    Everything and everyone was terrific

  • Reviewed on 6/11/2025

    Concern about the issue

  • Reviewed on 6/11/2025

    very professional

  • Reviewed on 5/29/2025

    This care provider was very professional, confident, polite, and thorough.

  • Reviewed on 5/20/2025

    Despite the fact that I have seen Dr. Cohen for melanoma, my experience with her has been great! She's easy to talk to, doesn't make me feel like she's in a rush to get on to her next patient, explains everything, answers all my questions, always responds in a timely manner and getting an appointment with her is very easy. I'm so glad that she is a major part of my care team.

  • Reviewed on 5/13/2025

    Dr. Cohen was very knowledgeable and explain things in a good way for me I felt relaxed from the get-go

  • Reviewed on 5/7/2025

    Dr Cohen was prompt and quite willing to answer the questions that we had. She mentioned next steps .

  • Reviewed on 5/7/2025

    everyone was professional and timely

  • Reviewed on 5/1/2025

    I am grateful to be able to see such a competent and caring provider. She gave me the time I needed to answer my questions and explain the info I needed for the next steps.

  • Reviewed on 4/7/2025

    Dr. Sonia Cohen was fantastic, put me at ease throughout and really cared about me. [redacted] and [redacted] were also fantastic

  • Reviewed on 4/9/2025

    I couldn't be more pleased with the speed and care I have received so far.