{"distribution":{"1":{"rating_count":0,"rating_percentage":0,"review_count":0},"2":{"rating_count":1,"rating_percentage":0.95,"review_count":1},"3":{"rating_count":1,"rating_percentage":0.95,"review_count":0},"4":{"rating_count":2,"rating_percentage":1.9,"review_count":0},"5":{"rating_count":101,"rating_percentage":96.19,"review_count":58}},"average_rating":"4.92","rating_count":"105","source_url":null,"reviews":[{"body":"Very attentive and caring.","review_date":"2026-08-02"},{"body":"Excellent! Great team!","review_date":"2026-08-01"},{"body":"MGH is an excellent place to be attended for your health care needs","review_date":"2026-07-29"},{"body":"I have the utmost respect and affection for Greg Lewis and his team.","review_date":"2026-07-25"},{"body":"the best doc for heart failure patients always takes time to discuss health and heart","review_date":"2026-07-20"},{"body":"They were excellent","review_date":"2026-07-18"},{"body":"Absolutely the Best !!","review_date":"2026-07-18"},{"body":"I was impressed with his focus on my health history and taking notes. He was an excellent listener but also asked many questions to fully understand my heath concerns. He scheduled testing after our visit which was impressive and other tests are scheduled.","review_date":"2026-07-16"},{"body":"The most informed, intelligent and caring medical professional we have EVER met. Studied my file and was versed with my medical issues. Truly outstanding doctor.","review_date":"2026-07-11"},{"body":"Wonderful provider, very thorough, answered all my questions.","review_date":"2026-07-05"},{"body":"Dr. Greg Lewis Is an excellent cardiologist very knowledgeable.","review_date":"2026-06-28"},{"body":"See.Lewis was great and answer all my questions.","review_date":"2026-06-27"},{"body":"The care provider was very respectful and very helpful. He gave me a lot of time and he was kind and informative. Thank you.","review_date":"2026-06-22"},{"body":"I love this day. Really take care of us and he explained everything. I really recommend. Thank you.","review_date":"2026-06-22"},{"body":"I had a wonderful experience. I feel like I was speaking to two of the best doctors in the hospital regarding my personal situation.","review_date":"2026-06-13"},{"body":"Yes, Dr. Lewis is very knowledgeable. He listens. He answers your questions, goes over the medicines, medications, and anything that's concerning, he addresses at this time. Thank you.","review_date":"2026-06-08"},{"body":"Dr. Lewis has always been really great. My relationship started nine and a half years ago when he called me in to get my heart and I have no complaints. I think he's awesome. You know, everybody's lucky to have him.","review_date":"2026-06-08"},{"body":"Dr Lewis is the best.","review_date":"2026-05-16"},{"body":"Excellent","review_date":"2026-05-11"},{"body":"Dr. Lewis is an excellent physician. He was thorough with his examination. He is extremely knowledgeable and explains everything in detail.","review_date":"2026-05-06"},{"body":"Dr Lewis is knowledgeable, kind and caring. Great \"bedside\" manner and gives you all the time needed to answer your questions. He's the best","review_date":"2026-04-18"},{"body":"Great","review_date":"2026-03-31"},{"body":"Dr. Lewis is always very thorough at my appointments and he's also very receptive to my needs. For example, if I ask him a question about a particular medication or he asks me about how I'm feeling, he's open-minded, he's receptive and I like Dr. Lewis.","review_date":"2026-03-31"},{"body":"Always grateful to see Dr Lewis. He has been a part of my tx team since the beginning and it's wonderful knowing he knows and understands my complex medical history. I'm truly appreciative of his care and expertise.","review_date":"2026-03-28"},{"body":"He is a well informed and very caring doctor who pays close attention to the needs of his patients.","review_date":"2026-03-28"},{"body":"! am very fortunate to have a world class heart doctor treating me.","review_date":"2026-03-28"},{"body":"No room for improvement!","review_date":"2026-03-24"},{"body":"Dr Lewis is one of the best doctors I have had in 60 years. His attentiveness, patience and knowledge set him far apart. Unparalleled treatment and care.","review_date":"2026-03-14"},{"body":"Dr. Lewis and [redacted], NP, who works in tandem with Dr. Lewis, are both outstanding--very knowledgeable and comprehensive.","review_date":"2026-03-04"},{"body":"It was my first time meeting Dr. G Lewis. My first impression was , I felt at ease, comfortable and knowing that I was in good hands .","review_date":"2026-02-28"},{"body":"He is as good as they get. The contact was by phone","review_date":"2026-02-17"},{"body":"Dr. Lewis was attentive and addressed all of my concerns.","review_date":"2026-02-15"},{"body":"I have been a patient ofDr. Lewis for a number of years. I've never had an issue with anyone in the office.","review_date":"2026-02-14"},{"body":"The care and experience were exceptionally great.","review_date":"2026-01-21"},{"body":"Gregory Lewis provides a thorough examination, explains illnesses well, is a very good listener, and a wonderful physician. His care is outstanding.","review_date":"2026-01-19"},{"body":"Dr. Lewis is very professional, very intelligent, well-spoken, and he takes the time to explain things to you properly and answer your questions. So it's a pleasure to go up there and have him be part of my healthcare.","review_date":"2026-01-19"},{"body":"very concerned about patients and always explains everything in easy to understand terms","review_date":"2026-01-18"},{"body":"He is world class.","review_date":"2026-01-09"},{"body":"Dr. Lewis and Nurse Practitioner [redacted] are excellent. Would highly recommend!","review_date":"2025-12-31"},{"body":"Dr Lewis,fortunately for me, has been my cardiologist for 10 years. He is always courteous and professional and thorough- I feel lucky to have him take care of me.","review_date":"2025-12-31"},{"body":"Dr Lewis and his team are deeply committed to seeking the best outcome possible. As a patient, one feels the beneficiary of decades of research and study. Grateful for his care.","review_date":"2025-12-29"},{"body":"Dr. Lewis is the best ever. Thank you very much.","review_date":"2025-12-22"},{"body":"I've been in Dr. Lewis's care for, I believe, five years. He is a fantastic doctor and the staff that he surrounds himself with from the front desk to the nurses to the other physicians have all been excellent. He takes time, tells me, walks me through how he's thinking, takes my feedback, asks very insightful questions. Couldn't ask for more.","review_date":"2025-12-11"},{"body":"At check in people were very polite PA's in Dr Lewis's office were terrific-","review_date":"2025-12-08"},{"body":"I have the utmost respect for Dr. Lewis. I believe he saved my life in [redacted] when I needed a heart transplant. Dr. Lewis recognized how damaged my heart was at the time and took time to meet with me outside of regular clinic hours. He is an incredible cardiologist and he is always able to answer any questions my wife and I have. My wife and I are very fond of Dr. Lewis and we look forward to seeing him on my six month visits. We feel very comfortable with Dr. Lewis and his team in the continuance of my care.","review_date":"2025-12-04"},{"body":"Very disappointing/disheartening appt. Most of the appt. was spent with the Fellow who was good but still learning. Dr. Lewis came in late and left early before the appt. was over. I had thought long and hard about a few questions to ask him but didn't have the chance. There were questions the Fellow needed to ask him, but there wasn't time for that either. I felt Dr. Lewis had already formed his opinion about me before he stepped into the room and gave the distinct impression that he wasn't interested in having me as his patient.","review_date":"2025-11-24"},{"body":"Dr. Lewis and his fellow were great","review_date":"2025-11-23"},{"body":"Great","review_date":"2025-11-22"},{"body":"An unusual and welcome session with very good information","review_date":"2025-11-10"},{"body":"I'm an older gentleman, [redacted] years old, and I got to tell you, everything about the appointment was perfect. Yes, they respected my privacy. They also helped me, and they did whatever they were supposed to do, and I couldn't be more satisfied. And I thank them for it.","review_date":"2025-11-10"},{"body":"very thorough and professional and a wonderful experience","review_date":"2025-11-07"},{"body":"I appreciate Dr. Lewis 'candor and thoughtful explanation of my condition and what treatment is and isn't possible.","review_date":"2025-11-01"},{"body":"Everything went smoothly relating to my visit","review_date":"2025-11-01"},{"body":"The care provided was excellent. I have no complaints and nothing to offer for improvements. Everything was excellent.","review_date":"2025-10-27"},{"body":"My cardiologist is my doctor at MGH","review_date":"2025-10-26"},{"body":"very courteous and respectful, answering all my questions and concerns","review_date":"2025-10-13"},{"body":"The transplant team at MGH is always one step ahead of my health. There passion for what they do makes me feel comfortable and safe. I have yet to have a bad experience.","review_date":"2025-10-12"},{"body":"In one word excellent","review_date":"2025-10-12"},{"body":"Dr Lewis is always very caring and informative. He has a great way about him that calms you right down. He listens carefully and explains everything so you are informed and comfortable with what he's saying. He never rushes you and you always leave feeling heard. He is the best!","review_date":"2025-09-20"}]}