{"distribution":{"1":{"rating_count":2,"rating_percentage":1.27,"review_count":1},"2":{"rating_count":1,"rating_percentage":0.64,"review_count":0},"3":{"rating_count":4,"rating_percentage":2.55,"review_count":0},"4":{"rating_count":2,"rating_percentage":1.27,"review_count":0},"5":{"rating_count":148,"rating_percentage":94.27,"review_count":74}},"average_rating":"4.821656","rating_count":"157","source_url":null,"reviews":[{"body":"Very thorough and reassuring. Answered all of my questions. Made an overwhelming situation feel less scary. Made me feel as though I was in good hands. Thank you!","review_date":"2026-08-03"},{"body":"Dr Arnaout was extremely knowledgeable. He was patient with me questions answered them in a way I could understand. He had a good sense of humor that helped ease the tension for me. He talked me through why he suggested the plan of action and added a personal touch that made me feel good with the decision we made.","review_date":"2026-07-30"},{"body":"Very kind, skilled, and compassionate. Provided needed medical diagnostic information updates.","review_date":"2026-07-25"},{"body":"Hi, Dr. ARNAOUT was very thoughtful and caring, took time to connect with me as a new patient, was very warm, and did an excellent job of describing what was happening and what needed to happen moving forward.","review_date":"2026-07-24"},{"body":"Thank you - they were attentive, informative and reassuring with a specific plan for follow up. Thanks.","review_date":"2026-07-24"},{"body":"Very professional and compassionate","review_date":"2026-07-15"},{"body":"This office of practitioners is excellent from [redacted] to [redacted] to Dr. Arnaout, just wonderful experiences.","review_date":"2026-07-08"},{"body":"The doctor demonstrated a strong sense of urgency around my case. He explained & used visuals to describe the procedure. He directly answered the many questions I had with honesty and frankness.","review_date":"2026-07-04"},{"body":"OA is professional, caring, and I feel fortunate he took on my case.","review_date":"2026-07-01"},{"body":"Easy to talk to, calming voice, nice bedside manner. Had an acceptable plan for me. Would highly recommend!","review_date":"2026-06-30"},{"body":"Had a wonderful experience. The provider was great and all the nurses and staff were wonderful.","review_date":"2026-06-26"},{"body":"I was seen in neuro-oncology clinic. NP there contacted Dr. Arnaout's office. I was thrilled that he was able to see me that afternoon, which was fantastic since time is of the essence in addressing the recurrence of my tumor. He was very personable and incredibly knowledgeable. He gave us a lot to think about and some clear recommendations in a difficult case.","review_date":"2026-06-24"},{"body":"We received an appointment within two days to see this provider. He was very thorough and engaging and shared his plan and next steps with us.","review_date":"2026-06-11"},{"body":"I was so scared when diagnosed with a brain tumor. If there is such a thing, I feel so much comfort and peace having Doctor [redacted] and Doctor Arnaout on my team.","review_date":"2026-06-11"},{"body":"He is consistently informative, caring and compassionate. I think he is very skilled in his field. I would highly recommend him and I am very thankful I am his patient.","review_date":"2026-05-27"},{"body":"I highly respect his answers and questions that we talked about. And the fact that he was very concerned about my continued medical care.","review_date":"2026-05-15"},{"body":"I was pleasantly surprised at the personal experience I had from a big hospital in a big city. Very professional and compassionate as well.","review_date":"2026-05-13"},{"body":"Very professional and reassuring/knowledgeable","review_date":"2026-05-12"},{"body":"Wonderful doctor. Listened to me and explained all my options in great detail.","review_date":"2026-05-07"},{"body":"The doctor was extremely helpful. I have a very complex health history that goes back many years and I was greatly impressed with his knowledge of my unique medical history and gone back through old imaging tests to actually isolate a tumor that they found last [redacted]. So I'm extremely appreciative, gave great advice and I'll be talking to him every 9 to 12 months to monitor the growth that's going on in my brain. So he's very helpful, highly recommend him and superlative doctor like all the other doctors, nurses and other staff I've encountered at Mass General in the last three years. So greatly impressed, highly recommend him to family and friends.","review_date":"2026-04-24"},{"body":"Honest and genuine.","review_date":"2026-04-23"},{"body":"Dr. Arnaout had read all my medical records and scans prior to him seeing me. He was very helpful in advising me how to taper off my medication as it was causing adverse side effects. I felt very comfortable with his advice. I would highly recommend him.","review_date":"2026-04-16"},{"body":"What an incredible doctor!","review_date":"2026-04-08"},{"body":"Dr. ARNAOUT is one of the best doctors I have met. He studied my MRI images and communicated with another doctor about my situation before meeting me. He is an easy-to-talk-to and professional neurosurgeon.","review_date":"2026-04-02"},{"body":"Dr. Arnaout is a great provider. Your organization is lucky to have him!!!","review_date":"2026-03-25"},{"body":"Straightforward and very reassuring provider even with a simple and not urgent diagnosis","review_date":"2026-03-22"},{"body":"Dr. ARNAOUT compassionately and clearly explained my current health situation and options for treatment. He answered all questions I had and I left feeling that I am in good hands.","review_date":"2026-03-20"},{"body":"Particularly because my experience immediately before seeing Dr Arnaout was one in which a neurosurgeon was dismissive and condescending and disinclined to volunteer any information about her treatment plan, I was overwhelmed with gratitude for dr Arnaout's preparedness and people skills","review_date":"2026-03-19"},{"body":"Excellent experience. The staff are efficient, patient and caring. PA [redacted] was outstanding as was Dr Arnaout! I feel 100 percent confident in the care.","review_date":"2026-03-18"},{"body":"All providers were caring and wonderful","review_date":"2026-03-16"},{"body":"In my [redacted] years I have never been treated with such kindness, respect and care that Dr Arnaout and his PA, [redacted] had given me. Not only are they both knowledgeable beyond words, they are truly caring professionals. I am so happy I found them!","review_date":"2026-03-07"},{"body":"I appreciated his knowledge and warm personality.","review_date":"2026-03-04"},{"body":"An absolute professional. I was diagnosed with a brain tumor and it turned my world upside down. Dr Arnaout and his team put me at ease. I am so grateful we found him and appreciative that he is managing my case.","review_date":"2026-03-04"},{"body":"This provider was an awesome doctor, spoke clearly and concisely, gave me a good idea of what was going on with my case. I was very satisfied. Thank you.","review_date":"2026-02-20"},{"body":"Outstanding service and care for my needs. Attention to detail on my service to my health concerns.","review_date":"2026-02-19"},{"body":"Dr. Arnaout listens and is well prepared. He shows compassion and empathy. He is also honest and understands the value of seeking different opinions when faced with a challenging case","review_date":"2026-02-18"},{"body":"He was wondering and listened","review_date":"2026-02-13"},{"body":"Dr. ARNAOUT was very informative. He was relaxed. He made me comfortable. He was clear in his explanation of the procedures. He gave me options to consider. And he had a great sense of humor and I would recommend him, highly recommend him. I was very pleased. I'm meeting him in person in a couple of weeks, so we'll enjoy a face-to-face rather than a virtual.","review_date":"2026-02-07"},{"body":"He is an excellent doctor. He looked at my scans before I got there. He was prepared and explained everything to me told me my different options and I was impressed that he had studied all my skins before I even got into the office.","review_date":"2026-02-05"},{"body":"Helpful caring","review_date":"2026-02-02"},{"body":"Dr. Omar Arnaout was extremely respectful, responsible, well-prepared, knowledgeable, and had a very nice bedside manner. I liked him right away. I felt comfortable. And he, you know, he was everything that I'd want in a neurosurgeon. He was terrific. Thank you.","review_date":"2026-02-04"},{"body":"Very caring and reassuring about my issue.","review_date":"2026-01-29"},{"body":"The doctor, nurse, and receptionist have been very excellent","review_date":"2026-01-28"},{"body":"Loved Dr. Arnaout. Very knowledgeable yet compassionate and kind.","review_date":"2026-01-21"},{"body":"Dr. Omar is a great surgeon. I feel very comfortable talking to him. And he has an exceptional demeanor and great experience. We recommend him to anyone.","review_date":"2026-01-15"},{"body":"Great staff great job","review_date":"2026-01-14"},{"body":"The provider was very professional and very caring.","review_date":"2025-12-29"},{"body":"Such a difference since last provider and office staff so much easier","review_date":"2025-12-25"},{"body":"I felt I was in the hands of a superior doctor","review_date":"2025-12-20"},{"body":"Very knowledgeable, a good listener and very helpful in explaining my situation and a plan going forward.","review_date":"2025-12-11"},{"body":"Appreciated that he walked me through the past 2 MRIs to show the radiation impact on the tumor","review_date":"2025-12-11"},{"body":"I cannot praise him and his and his entire team strongly enough. He and all of them are extraordinary!","review_date":"2025-12-11"},{"body":"Dr. Arnaout could not have been more compassionate, helpful, informative, and prepared. He and his PA [redacted] answered all my questions and referred me to another provider for help that I may need prior to surgery. I was greatly relieved to be seen by these exceptional professionals. I would say that both are THE BEST OF THE BEST!","review_date":"2025-11-29"},{"body":"I was truly am amazed with the level of expertise and professionalism. The doctors and the majority of the nurses provided. I was extremely impressed that my occupational therapist had the exact same procedure and was fully versed and knowledgeable of what I had to look forward to down the road. Being a provider myself, and first responder growing up in New England MGH always carried the gold standard above behind all the hospitals in the Northeast.","review_date":"2025-11-26"},{"body":"He was very authentic and eased my concerns.","review_date":"2025-11-26"},{"body":"Your medical assistant [redacted] was very good, as was Dr. Arnaout and the physician's assistant [redacted].","review_date":"2025-11-27"},{"body":"It was an Excellent experience in all aspects.","review_date":"2025-11-19"},{"body":"Excellent.","review_date":"2025-11-20"},{"body":"Outstanding communicator about complicated and difficult issue.","review_date":"2025-11-13"},{"body":"I thought the provider was very professional, answered all my questions with the information he gave, took his time to make sure I understood it all.","review_date":"2025-11-12"},{"body":"Dr. Arnaout is the consummate professional. He is highly intelligent and very compassionate. Even threw in a sense of humor? Explained in detail to me (and my remote family) what my options are. Answered every question thoroughly and in language this non medical person understood well. He reflects great credit upon himself, his profession, and the hospital. Great job........","review_date":"2025-11-15"},{"body":"Dr Arnaout is Very thoughtful and can tell he cares deeply about his patients.","review_date":"2025-11-05"},{"body":"He answered questions I forgot to ask. He's very knowledgeable and spoke clearly and calmly. Very kind","review_date":"2025-11-05"},{"body":"He is very personable, understood what my health concern was. Most of all I very much appreciated his honesty about my tumor and the choices I had to treat it.","review_date":"2025-10-29"},{"body":"very compassionate, patient, and thorough physician that took as much time as needed to address my issue","review_date":"2025-10-28"},{"body":"The doctor I saw, Dr. Omar, was very, very professional, as was his PA. I couldn't have been more happy with their service in the whole hospital service. They were wonderful. They were a 10 plus.","review_date":"2025-10-24"},{"body":"The provider was very informative, truthful, and transparent. He was also responsive and took the necessary extra steps.","review_date":"2025-10-09"},{"body":"Dr. Arnaout and his staff were very helpful and understanding.","review_date":"2025-10-08"},{"body":"Felt confident and and comfortable under his care.","review_date":"2025-10-08"},{"body":"The virtual visit with the doctor also included my son-in-law, [redacted] and my daughter, [redacted]. The doctor explained the need for a potential surgical procedure, and answered all questions about it that each of us had. He also said he was open to hearing from any one of us who had further questions and I will be getting back to him in the near future to potentially schedule the procedure. I am feeling confident with all that he explained to us.","review_date":"2025-10-06"},{"body":"My experience with male doctors in the past have not been great. So I'm always a little apprehensive when I have a male provider. But Dr. Arnaout was the complete opposite. I can't believe this guy's a brilliant brain surgeon and just so down to earth and kind. He listened. He went through every possibility of what could happen during the surgery to make sure I understood, and I was comfortable with it. He's just fantastic. I walked in there feeling very anxious about having a tumor removed from my brain, which is a very scary thing, and I left there feeling relaxed, happy, knowing that I was in good hands.","review_date":"2025-10-10"},{"body":"New provider had been provided with my current rare issue I suffer from, from the dr that had left the practice .","review_date":"2025-10-04"},{"body":"My provider was Dr. Omar Arnaout. I thought he was an excellent doctor. He listened to me. I listened to him. I think we had a great conversation. He devised a plan, kind of plan B, if you would, because of a pacemaker that I have. But he devised a plan, and I went along with that. I can honestly say I could express a great amount of confidence in him.","review_date":"2025-10-03"},{"body":"I really like Dr Arnaout ! He explained to me the results of the MRI. I had questions and my husband had question that he responded w/o hesitations in a very simple way","review_date":"2025-10-01"},{"body":"He was exceptional. I feel like I was in such good hands. Absolute confidence in my care team and I'm really grateful to be connected with this provider.","review_date":"2025-09-19"}]}