Oyere K Onuma, MD

Patient Feedback

4.751049 average rating from 143 reviews

• Excellent professional, compassionate and knowledgeable

  2026-08-27

• I absolutely love the whole, that whole team. [redacted]

  2026-08-26

• Excellent communication, listens and responds in a clear professional manner Very helpful answered all my questions and concerns

  2026-08-15

• This care provider was patient. She took great pains to explain clearly when I had a question about whatever her answer had been and put me at ease with the treatments that were going to be ongoing.

  2026-08-12

• She was fantastic, knowledgeable and listened carefully to my concerns. Took the time to provide tools to how i can improve my health.

  2026-08-12

• She's a very nice doctor [redacted]

  2026-08-09

• Received excellent service and care at MGH, as usual. Doctor gave me instructions to improve my health regarding blood pressure and weight.

  2026-08-05

• Dr. Onuma is wonderful. She always reviews my records ahead of me coming and is up to date on everything else that's been going on with my medical care. She also listens to what I'm trying to achieve and is incredibly kind and understanding in what I'm trying to get to with my health.

  2026-07-29

• Better than expected very pleased

  2026-07-26

• I feel lucky and blessed to have this doctor as my cardiologist.

  2026-07-15

• Dr. Onuma is kind and caring. She always ensures that I understand and she answers all of my questions. I am very happy to been assigned to Dr. Onuma

  2026-07-02

• The doctor was outstanding, incredibly knowledgeable, and understood the psychology of the situation as well.

  2026-06-24

• Dr Onuma was great. Explained everything very well.

  2026-06-22

• Extremely thorough, caring and informative!

  2026-06-21

• Dr. Onuma is great and I feel lucky to have access to her as a care provider.

  2026-06-22

• Dr was extremely professional and caring at time of visit

  2026-06-17

• Very, very good. In fact, excellent in all respects.

  2026-06-12

• [redacted] Dr. Onuma is brilliant, caring, and extremely expert and competent. I could not be happier with her as my cardiologist

  2026-06-09

• The nurse was timely and took my vitals and did the EKG. She was very nice. I did not get into detail about my medical history w/her or the reason for my visit. The doctor was nice and personable. This was our 1st meeting - she had been assigned to me since my previous doctor moved out of state.

  2026-06-07

• She was detailed in explaining things to me and patient in hearing me talk

  2026-06-04

• She was extremely open to hearing what I had to say and was very validating, which is hard to find these days.

  2026-05-27

• She asked why I was there, reviewed my medicines, asked many questions, listened to me and walked me through health risks and behavioral changes that might reduce those risks and improve my health.

  2026-05-24

• Great experience. Dr and nurses were warm and personable.

  2026-05-20

• I would ask for what she did

  2026-05-19

• Dr. Onuma is compassionate, kind, and attentive. Her approach to "whole wellness" in my treatment and care during my visit was wonderful.

  2026-05-13

• Dr. Onuma was wonderful. She spent a great deal of time talking with me. She is great.

  2026-05-06

• exceptional care

  2026-05-03

• Dr. Onuma came into the room fully prepared and up to date on all of my medical history and had reviewed my past labs. She spent a lot of time listening to my concerns and then walked me through all of her thoughts and her diagnosis on my issues. I felt very well listened to. She understood me. She was friendly. She had a very warm personality and it was very clear she cared very much about my well-being. I very much enjoyed meeting her and I feel very confident that I am getting the very best care.

  2026-05-04

• Dr Onuma is the best. She is so knowledgeable and explains everything clearly and concisely. I have no doubt that she genuinely cares about my health and overall wellbeing. I have complete trust in her advice. In addition, she is a wonderful person! I am so grateful to have her as my cardiologist!

  2026-05-02

• If only all in need had a doctor like Dr.Onuma to care for them.

  2026-05-01

• This was my second visit with Dr Onuma and she has listened well and answered questions clearly.

  2026-04-21

• Dr. Onuma is a wonderful doctor. She listens, provides good information in an easy to understand way, and most of all, is genuinely invested in her patients' well-being.

  2026-04-18

• I thought the doctor was amazing and how much time she spent with me because usually doctors come in and out so quickly. So I was very, very impressed with that. [redacted]

  2026-04-09

• She has up-to-date information about new drugs and is impressive. She is gentle and caring. One of the best doctors I have met.

  2026-04-13

• I felt that my doctor was extremely thoughtful, caring, and informative. Her bedside manner was the best that I have experienced from a doctor in recent memory.

  2026-03-20

• Absolute professional, very thorough, very concerned, 100% attentive, maintained great eye contact, made sure that she explained all terms, didn't assume that I understood certain medical terms, which I do because I'm in a medical, not in the medical profession, but I am an EMT, so I do understand some medical terminology. But again, she did not assume that I knew it and she explained it very well, not in a condescending manner. She's a professional and I am absolutely satisfied and impressed.

  2026-03-19

• Wonderful care! Very thorough

  2026-03-16

• My Cardiologist is super professional and knows her stuff! I respect her highly. I'm not always easy to work with but she is absolutely the best!

  2026-03-18

• This provider is absolutely amazing, caring and a great listener

  2026-03-14

• Dr Onuma is the absolute best. Love her. She is very thorough and caring. Honestly, female doctors are way better anyway, but she's in a different league.

  2026-03-09

• I was impressed with the time she took to hear me and discuss my issues.

  2026-03-04

• It would have been helpful if my doctor or nurse provided more information on when it's best to take my BP and how many times to take it during the day!

  2026-02-19

• She is a world class cardiologist!

  2026-02-25

• Excellent experience

  2026-02-02

• Dr. very through

  2026-01-30

• I have already recommended Dr Onuma to a colleague as she was fabulous. It turns out that I don't need follow-up at this point but, if I did, I would do all I could to ensure that Dr Onuma was my physician. She was caring, knowledgeable, personable and an all-around pleasure to interact with. Thanks you for providing her.

  2026-01-28

• The Dr was excellent. I felt heard and she was very thorough in her explanations. She was very pleasant as well.

  2026-01-22

• I was very impressed! And feel very Fortunate to have her help Me Optimize my Health

  2026-01-19

• I can't say enough about Dr.Onuma. She focuses on the patient. Covers all aspects of tests and past procedures. She discuses the possible paths forward listens to your concerns and spells out her 9recommendations. I would recommend her without reservation. I feel very fortunate to have her as my cardiologist .

  2026-01-19

• [redacted] My initial impressions are Dr. Onuma is highly skilled, devoted to her profession, a good listener, and delivers her conclusions and recommendations in a manner suitable for the abilities and predilections of her patients - all very important to an effective relationship. I believe I am fortunate to be in such good hands and look forward to working with Dr. Onuma in the years to come. [redacted]

  2026-01-19

• She is always very kind and listens to my concerns and spends time answering and asking questions. She is personable and I feel very cared for.

  2026-01-14

• Terrific

  2026-01-15

• Dr Onuma was very accommodating to see me on telehealth as I was sick at home. I value her knowledge, honesty and her recommendations for my health. I agree with her plan for me and would highly recommend her to family and friends.

  2025-12-15

• The Doctor was great. She was through and spent more time than I expected. [redacted]

  2025-12-14

• She was extremely knowledgeable, empathetic, and took her time explaining everything that she needed to explain and made sure that we wrapped up with a really good plan together moving forward, one of which did not necessarily require me to come back in while I'm receiving chemo treatment, which is very nice of her. And I would highly recommend this provider to anybody, and I already have. Thanks so much.

  2025-12-11

• I was very impressed with her.

  2025-12-11

• She made a very valuable link between the medication I am currently taking and jump in my cholesterol. It was interesting and fresh observation. Provider is professional and out of the box thinker.

  2025-12-09

• Dr. Onuma is fantastic! Her communication skills, listening skills and clinical expertise is outstanding. Wonderful patient and supportive manner. I'm very pleased to have connected with her.

  2025-11-26

• Dr. Onuma is an exceptional physician. She listens to [redacted]. She cares so much about his welfare with his rare disease, [redacted]. And she's a wonderful listener and provider for [redacted].

  2025-11-20

• The Doctor was terrific she listen, took the time to explain everything and answered all my questions an all round great experience. My only issue would be to question her choice of football team to support, Arsenal ? ???

  2025-11-17

• When I did see the provider, she really took the time not just to tell me the importance of the medication I need to take, but she also took the time to show me a graph and also to let me know that, you know, what are the negatives of not taking the medication, what are the positives. And she also took the time to show me my past history. When I was taking the medication, it was better. And now I'm not taking it. It's, you know, getting downhill. So I really appreciated that. Thank you.

  2025-11-13

• I felt very comfortable talking to Dr Onuma

  2025-11-02