{"distribution":{"1":{"rating_count":0,"rating_percentage":0,"review_count":0},"2":{"rating_count":0,"rating_percentage":0,"review_count":0},"3":{"rating_count":0,"rating_percentage":0,"review_count":0},"4":{"rating_count":3,"rating_percentage":1.9,"review_count":2},"5":{"rating_count":155,"rating_percentage":98.1,"review_count":83}},"average_rating":"4.964557","rating_count":"158","source_url":null,"reviews":[{"body":"Exceptional","review_date":"2026-08-09"},{"body":"Dr. Harrington is by far the best doctor I have seen anywhere. She is thoughtful, up on the latest research, honest, compassionate funny, and personable. She is the reason I got better and she exemplifies why mgh has the best doctors in the best medical facility in the United States. As I move forward in my life and need more specialists I hope I can find more doctors like Doctor Harrington.","review_date":"2026-07-27"},{"body":"She was very knowledgeable, attentive and made me feel like she cared about my health. She heard me and explained things thoroughly. She was very patient - she was kind which is very important to me. I am looking forward to seeing her again !","review_date":"2026-07-26"},{"body":"Dr Harrington is an incredibly bright, capable and caring professional. She knew my very complicated history before we met and has such a wealth of information, in general. For the first time in my history with cardiologists, I felt I understood the whys of so many decisions I've been subjected to. She is, simply put, an outstanding physician who stands out even in a sea of great physicians.","review_date":"2026-07-20"},{"body":"Dr. Harrington was extremely thorough, very easy to understand, explained everything well, was focused on what I needed, was even willing to help me get a test that is not particularly under her jurisdiction. I found her extremely reassuring. I liked her a great deal and I will definitely recommend her to others.","review_date":"2026-07-22"},{"body":"Colleen Harrington has always proven to be a pleasure to have as my cardiologist. She is very knowledgeable, very attentive, very professional and very caring. I could not ask for more from a doctor.","review_date":"2026-07-20"},{"body":"The staff, nurses and Dr. Harrington were great! I feel I received a good assessment of my condition and options.","review_date":"2026-07-19"},{"body":"Dr. Harrington is the best! She makes me feel comfortable and confident in her abilities with her gentle demeanor but fierce protection of her patients.","review_date":"2026-07-19"},{"body":"Dr. Harrington has been my cardiologist since needing a pacemaker three years ago. She has always been extremely thorough and very easy to talk with! I actually look forward to my visit with her! I feel extremely fortunate to have a practitioner of her caliber!","review_date":"2026-07-06"},{"body":"Colleen, is an incredible person and an incredible doctor. I'm so lucky to have her as my Cardiologist. She goes above and beyond. Make sure you don't lose her!","review_date":"2026-07-07"},{"body":"The best!","review_date":"2026-07-06"},{"body":"She is always informative","review_date":"2026-06-18"},{"body":"Dr. Harrington was extremely professional, caring and supportive to me during my visit. She spent as much time as I needed to address my concerns. I am extremely pleased with her.","review_date":"2026-06-16"},{"body":"I LOVE Dr Colleen Harrington!! she is very empathetic, understanding and provides excellent care. She has brought me to excellent cardiovascular health!","review_date":"2026-06-14"},{"body":"I always leave exactly what I need to do to maintain and continue to improve my heart health.","review_date":"2026-06-14"},{"body":"Dr Harrington listens with intent and gives thoughtful responses. She is very thorough and really listens during auscultation. I trust her to provide the best care possible and to keep up on current research.","review_date":"2026-06-14"},{"body":"Dr Harrington is very knowledgeable and tracks every little intricacy of my cardiac health. I feel she is thorough, succinct, pro-active and really wants the best for me. I am so grateful she is my doctor.","review_date":"2026-06-14"},{"body":"Dr Harrington was wonderful. She explained everything throughly to me. He medical assistant was very attentive.","review_date":"2026-06-11"},{"body":"Excellent visit Well prepared Helpful ways to improve my blood tests","review_date":"2026-06-09"},{"body":"I am very happy to have Dr. Harrington as my provider.","review_date":"2026-06-08"},{"body":"Great visit She took the time to listen to me talk through a plan actually cared about me in getting some resolution to my issues","review_date":"2026-06-07"},{"body":"Dr. Harrington was professional, knowledgeable and very helpful. Her demeanor was calm and thoughtful.","review_date":"2026-06-03"},{"body":"Dr. Harrington is kind, takes the time to discuss my medical issues and fit me into her busy schedule when I needed to see her. She is a great doctor!","review_date":"2026-06-01"},{"body":"Dr. Harrington is the epitome of professional!! Perfect in every way","review_date":"2026-05-27"},{"body":"Dr. Harrington is very professional and knowledgeable. She is thorough and answers questions in a way that is easily understood.","review_date":"2026-05-27"},{"body":"My new patient appointment with Dr. Harrington was exceptional. She took time to listen to my concerns, asked questions to clarify what was going on, and explained things in a way that was easy for me to understand. She was very thorough looking through my online chart checking for past history that might be related to the concern. We made a step-wise plan to help gather more information prior to our follow-up appointment.","review_date":"2026-05-25"},{"body":"Dr. Harrington was wonderful; very informative, respectful, really listened to me.","review_date":"2026-05-24"},{"body":"I feel I am very fortunate to have Dr. Harrington as my cardiologist. She always listens to any of my concerns and I am very comfortable sharing with her. She gives me all the time I need during my yearly appointment.","review_date":"2026-05-23"},{"body":"Dr. Harrington is wonderful!!!","review_date":"2026-05-23"},{"body":"Dr Harrington is excellent in all respects.","review_date":"2026-05-23"},{"body":"I was very pleased and relieved after my appt. with Dr. Harrington. She spent a significant amount of time with me and explained her recommendations in depth. This was my first appt. with her and I could not be more satisfied. She was able to explain a lot of complicated information to me in a way that I was able to understand. I'm very grateful for her care.","review_date":"2026-05-13"},{"body":"The doctor is kind ,caring and really listens to pt. And seems invested in my health but is realistic about what I want concerning my tx going forward.","review_date":"2026-05-10"},{"body":"Dr. Harrington was professional, really caring, answered all ?","review_date":"2026-05-06"},{"body":"She's wonderful.","review_date":"2026-04-29"},{"body":"Excellent!","review_date":"2026-04-20"},{"body":"Dr. Harrington is an excellent cardiologist. She is extremely knowledgeable and yet can still relate to a patient using words that the patient can understand. She takes time to listen carefully and to pose appropriate questions. And it is obvious that she really cares about the health and well-being of the patient!","review_date":"2026-04-19"},{"body":"Dr Harrington is a very talented and thorough cardiologist. She prepares herself for my appointment and listens to my concerns and answers them. She cares and I trust my life in her hands. Blessed to have her as my cardiologist..","review_date":"2026-04-15"},{"body":"exceptional care!","review_date":"2026-04-08"},{"body":"Dr. Harrington was excellent with her knowledge of scad. She was very compassionate and supportive. Just the person I needed to see.","review_date":"2026-04-06"},{"body":"I feel she is really caring for me and it gives me confidence and hope.","review_date":"2026-04-06"},{"body":"Dr Harrington is wonderful. She took the time to explain everything so that I understood it.","review_date":"2026-04-06"},{"body":"A++++++","review_date":"2026-04-07"},{"body":"I am very happy with Dr. Harrington's knowledge and wisdom. I feel as if she is on my side and looking out for my best interest.","review_date":"2026-04-01"},{"body":"As someone with a bizarre number of heart attacks and little traceable causes, I feel confident that dr. Harrington is the best to deep dive into my problems. [redacted]","review_date":"2026-03-26"},{"body":"Dr. Harrington is a very professional, educated, and wonderful person and doctor. I feel very confident that my needs and my heart are being looked after by a wonderful person as well as an excellent doctor. She has a good team around her and I'm very, very pleased with her and her expertise.","review_date":"2026-03-25"},{"body":"Dr Colleen Harrington is excellent in every manor","review_date":"2026-03-23"},{"body":"My experience with Dr. Harrington was fantastic! She is terrific with wonderful recommendations and her communication skills are outstanding. She is a caring person.","review_date":"2026-03-22"},{"body":"It was the best experience Ive had as a patient of MGW!","review_date":"2026-03-21"},{"body":"She was very informative","review_date":"2026-03-09"},{"body":"My visit with Dr Harrington was the most thoughtful appointment I have ever had with a doctor, she had reviewed my medical history before our appointment, she listened and explained test results that I had never been given. She is kind and patient. I am so grateful to be able to be a patient of Dr Harrington","review_date":"2026-02-14"},{"body":"Dr Harrington is very knowledgeable, thorough, patient and straightforward, and respectful and caring at the same time!","review_date":"2026-02-14"},{"body":"I always feel like I'm in the best hands when I see Dr. Harrington. She listens to my worries or concerns and explains things to help ease my mind. I feel her knowledge of my medical condition is to notch and soo happy she is my doctor!!","review_date":"2026-02-26"},{"body":"Dr Harrington is the best and I am so lucky to have an incredible specialist to help manage my SCAD healing","review_date":"2026-02-25"},{"body":"This doctor took the time to read about my medical history before I got there and gave very helpful information on my condition","review_date":"2026-02-11"},{"body":"This was one of the best doctor visits I've had and I am [redacted]. Dr Harrington was so thorough and went through everything that had happened to me back to 2022.","review_date":"2026-02-08"},{"body":"Wouldn't change for the world","review_date":"2026-02-02"},{"body":"effective visit","review_date":"2026-01-31"},{"body":"Dr Harrington was wonderful. She had read my history before we met, had a lot of questions, explained issues very thoroughly and also was very kind and reassuring. I could not recommend her any more highly!","review_date":"2026-01-27"},{"body":"Dr. Harrington is incredibly professional and understanding. She took time to explain things to me. She is always willing to listen to my concerns and to address those. She's incredibly knowledgeable and one of the best doctors I've ever had. Thank you.","review_date":"2026-01-21"},{"body":"The whole experience was great every in that office was very professional","review_date":"2026-01-20"},{"body":"Dr. Harrington is extremely receptive to my presence, questions, and offering suggestions/solutions to my concerns. She is GREAT!!","review_date":"2026-01-18"},{"body":"I was impressed with Dr. Harrington's patience, understanding of my condition, and her willingness to spend quality time explaining next steps and scenarios. She spent a considerable amount of time. It was my first visit, and when I left there, I felt like she had a solid handle on my challenges medically, as well as what my wishes are. I was very impressed with her ability to listen and patience to give me proper information. Very good. Thank you.","review_date":"2026-01-14"},{"body":"Okay, Dr. Harrington was great and I did have to wait a little while for her, but it was, once she was with me, she just seemed like I was totally the focus and she was very informative and explained things very well and I thought she was great.","review_date":"2026-01-01"},{"body":"I was so impressed with the care I received. I am so happy I changed providers. I have a clearer understanding of my cardiac issues and she answered every single one of my questions carefully and thoughtfully.","review_date":"2025-12-15"},{"body":"This was my first appointment with Dr Harrington. She was everything I wanted in a doctor. She was knowledgeable, caring, answered all my questions, explained things thoroughly and never rushed me. She is working with my rheumatologist to come up with a care plan. I will gladly recommend her to my family and friends.","review_date":"2025-12-14"},{"body":"Dr. Harrington is refreshing, informative, intelligent, caring, through. One of the best doctors I have ever had. I feel blessed to have her as my cardiologist.","review_date":"2025-11-25"},{"body":"Wonderful clinician. Well trained, careful, evidence based practitioner. And she is very nice!","review_date":"2025-11-23"},{"body":"Dr. Harrington is a wonderful doctor whose expertise and treatment has improved my health since my first visit!","review_date":"2025-11-17"},{"body":"Dr. Colleen Harrington is an asset to Mass Gen (and anywhere she may go). She cares about me, it shows in her knowledge and memory of my medical history and concern for my well-being. I drive 2 hours to see her and have followed her from UMASS. She is the best of the best and I hope you recognize her for the gem that she is!","review_date":"2025-11-19"},{"body":"Dr. Harrington is fabulous to work with. She listens and truly cares. I couldn't ask for a better cardiologist to address my health issues! Five Stars!!!!!!","review_date":"2025-11-16"},{"body":"I look forward to my cardiology visit with Dr. Colleen Harrington with great enthusiasm! She patiently listens and responds to my health concerns, questions and test results with detailed professional acumen and expertise. Dr. Harrington is warm, empathetic and provides excellent guidance with treatment recommendations, medications review, diagnostic referrals, healthy lifestyle options and encourages patient goals that will support consistent health maintenance and overall well-being. Post-visit written summary is detailed, promptly completed and helpful for reference. I'm highly satisfied with the exceptional care I receive from Dr. Colleen Harrington! I would definitely recommend her with complete confidence to family, friends, and others who are seeking an excellent provider/specialist in Cardiology services.","review_date":"2025-11-11"},{"body":"Dr. Harrington went above and beyond! She treats you as a whole person instead of just your parts (heart). She is an excellent listener and makes usefull suggestions as well as offers to connect with other providers that may be able to help with your overall health. I felt great when I left. Like someone really heard me! She's the best!","review_date":"2025-11-07"},{"body":"A +++","review_date":"2025-11-05"},{"body":"Dr Harrington is outstanding. Goes beyond and looked into my history in detail. Very knowledgeable, professional, and pleasant. Thank you.","review_date":"2025-11-02"},{"body":"Dr. Harrington was very outstanding, thorough, and complete in her addressing our cardiac needs and history. She was very generous with her time.","review_date":"2025-10-29"},{"body":"I enjoy this practice very much. [redacted] I love Dr. Harrington. [redacted]","review_date":"2025-10-23"},{"body":"Very caring and explains things well","review_date":"2025-10-20"},{"body":"Dr. Harrington is one of the best doctors at Mass General, and I'm very pleased about being her patient. Thank you.","review_date":"2025-10-15"},{"body":"Dr Harrington is a thoughtful, knowledgeable, wonderful doctor. I am so lucky to have her as my cardiologist. She is the BEST!","review_date":"2025-10-14"},{"body":"Dr Harrington is respectful, knowledgeable and specific with instructions. She is caring.","review_date":"2025-10-13"},{"body":"exceptional : caring, respectful, professional","review_date":"2025-10-11"},{"body":"She cares and knows her stuff. I feel I am in the best hands.","review_date":"2025-10-08"},{"body":"Excellent care.Gave me all the time I needed. Caring and very thoughtful","review_date":"2025-10-06"},{"body":"I am so relieved that she will monitor my heart murmer & order another echocardiogram in 2 years. She is the only doctor that listened to my heartbeat & said she could hear the murmer. I had been to a cardiologist at UMass who ordered an echo but stated he didn't think he'd find anything. He asked me if the echo showed nothing was it ok not to schedule a follow up appointment. Needless to say I never heard back from him. When I read the echo results it said mild to moderate (? Unsure of the correct terminology) heart valve issue.","review_date":"2025-09-29"},{"body":"Dr Harrington and [redacted] were wonderful. I am so much more at ease, now, after my visit. I'm so grateful that I had this appointment!","review_date":"2025-09-22"}]}