William Dean Carlson, MD, PhD

Patient Feedback

4.948571 average rating from 140 reviews

• Dr Carlson has literally been a life saver to me. He is brilliant! He has a calm demeanor, which is great for me so I don't get anxious. I honestly don't know what I would do without him. I have recommended him to several people.

  2026-08-08

• Always feel heard and understood by this doctor; he enables and supports my decisions

  2026-08-05

• If anyone needs a Cardioolgist I would highly recommend Dr. Carlson who is very professional and a caring . He is thorough and continually follows a Patient's needs.

  2026-08-05

• Dr.Carlson is a kind, knowledgeable,caring doctor.

  2026-08-03

• Doctor Carlson has been my Cardiologist for well over 10 Yrs and in that time he has always been very cordial, professional and always explained in terms we could easily understand.

  2026-08-02

• Excellent

  2026-08-01

• Dr. Carlson is one of the finest medical providers I have ever experienced in my life. Every visit there is informative and he is an excellent physician and he is a credit to Mass General.

  2026-06-26

• I've been under the care of Dr Carlson for over 20 yrs. He has always been professional kind and understanding. He listens to what I have to say. And has a great sense of humor. The biggest thing I like is that he spends time with you. Time that most doctors don't have. A think he's a great doctor as far as I'm concerned

  2026-06-24

• I have been a patient of Doctor Carlson for the last 19 years, and have not gotten nothing less then the best care,I could ask for.

  2026-06-16

• Excellent. Feel very fortunate to have such a competent and caring professional.

  2026-06-12

• MGH has been my primary source of medical care for the past 25 years. Dr. William Carlson, along with my one-time primary care physician, Dr. [redacted], are the hallmark examples of excellence in medical care. This is what the MGH reputation is built on! MGH & I are supremely lucky to have known them!

  2026-06-10

• Let's make sure that he survives me!

  2026-06-07

• Doctor Carlson always asks insightful questions about my health and listens carefully to the answers. I am confident of his diagnosis and recommendations for my health.

  2026-06-07

• Excellent!

  2026-06-05

• he is the best

  2026-06-03

• Excellent care provider

  2026-06-02

• Yes, this is [redacted]. Yeah, Bill's the best. He's the best of the best. I've been with him for 30 years. He's nothing but first rate, scale of 1 to 10. He's at 11. Can't think highly enough of him. I've been told I'm a hard grader, so he's just above and beyond. So again, thank you. Also, his scheduler, [redacted], is also at 11. She's just terrific. And between the two of them, they've been managing my care and when I could see Bill extraordinarily well. So thank you.

  2026-06-03

• He is caring, informative and respectful.

  2026-05-31

• I found Dr. Carlson to be very professional, extremely knowledgeable, very attentive listener, and takes the time that he needs to explore what is going on and take care of you in a very thorough manner, including any necessary prescriptions, follow-up appointments, etc. He is super, super awesome. I think it's off your chart, off your scale of 10. So I really appreciate having Dr. Carlson as my doctor. Thank you so much.

  2026-05-28

• I have been a patient for Dr. Carlson for many years. He has the utmost professionalism. He is very detail-oriented and reviews my medical history as well as takes all of my comments into consideration before he is to prescribe any prescriptions. I cannot thank him enough for the work he does. Thank you.

  2026-05-28

• Excellent physician

  2026-05-10

• Dr Carlson and his staff are very efficient and helpful

  2026-05-11

• Super as usual.

  2026-05-10

• Dr. Carlson is the consummate professional. I really appreciate his care, understanding, and counsel as he treats me.

  2026-05-08

• Dr. Carlson explained my issues clearly and calmly. He gave me ample time to ask questions, answered them all which resulted in a very good dialogue. He was very reassuring. I understand that he is focused on healing my heart. Thank you.

  2026-04-21

• Dr Carlson and his staff are fantastic and I trust my life to him.

  2026-04-15

• for a very busy place...Mass General does a great job of making you feel like an important client and not just a number

  2026-04-12

• Dr. Carlson, his staff, and administrative assistant [redacted] are absolutely "THE BEST"!

  2026-04-10

• Excellent

  2026-04-08

• Highest Quality

  2026-04-08

• Dr is always pleasant, listens, and spends time on appointment. Provides information with regards to all concerns.

  2026-04-08

• Been going to Dr Carlson for 17 years and there is nobody better.

  2026-03-25

• Dr. Carlson is an amazing gifted physician. He listens, knows all and shares with compassion and care.

  2026-03-18

• Very knowledgeable and thorough. Concerned. Personable.

  2026-03-15

• I am really looking forward to working with Dr. Carlson in hopes of feeling better.

  2026-03-11

• Dr.Carlson is very professional and is attentive to my heath concerns.

  2026-02-23

• Dr Carlson is the ideal Cardiologist. He is aware of your condition. He is extremely knowledgeable about how to help and listens carefully to everything you have to say. None better.

  2026-02-25

• DR CARLSON is the very best in his field and really cares for his patients .

  2026-02-19

• Dr. Carlson is very, very professional. He's a heart surgeon and I'm glad I have him.

  2026-02-19

• Dr. Carlson is a legend.

  2026-02-16

• most knowledgeable physician. truly cares about his patients.

  2026-02-04

• Provider very professional and I always trust and confident that he will provide me with the best care.

  2026-01-22

• Very happy with the care provided by Dr Carlson and the entire MGH Staff.

  2026-01-14

• Dr. Carlson is both expert and caring and an excellent cardiologist.

  2025-12-22

• best

  2025-12-20

• Dr Carlson is calm, reassuring and knowledgeable. He is proactive and thorough. He has a great sense of humor which adds a reassuring note to interactions with him.

  2025-12-16

• Dr Carlson and his team are outstanding. He has been my cardiologist for over twenty years. He listens to my concerns, treats me respectfully and professionally. I have full treats in him as my doctor. [redacted]

  2025-12-14

• This Dr. is professional, down to earth and a pleasure to work with.

  2025-12-09

• Dr Will Carlson is the best!

  2025-12-08

• My cardiac problems are unique and complicated. I am honored to have this extraordinary doctor right on top of my case for many years now and hopefully, as long as I live.

  2025-12-07

• Good , for every employee I Spoke with.

  2025-11-24

• I'm very grateful to have Dr. Carlson as my cardiologist. He is a very good, caring innocent.

  2025-11-26

• Dr Carlson is very attentive thorough and answers all my questions.

  2025-11-24

• Dr. Carlson is a wonderful doctor. He's very kind and listens to what I have to say.

  2025-11-23

• My experience has been excellent.[redacted]

  2025-11-19

• Dr. Carlson is knowledgeable, experienced, and extremely kind. He is brilliant and has been so important to me in my life and helped me immensely.

  2025-11-13

• Dr Carlson is a wonderful doctor...very attentive an knowledgeable

  2025-11-12

• I've been seeing Dr. Carlson for numerous years. He's always patient, kind, understanding, spends plenty of time, is extremely thorough. All I can say is all of the visits have been exemplary and I'm so very pleased. He's just a wonderful, wonderful doctor. Thank you.

  2025-11-12

• Excellent and respectful

  2025-11-19

• The Beat

  2025-11-04

• I've been seeing Dr Carlson for 30 years. I dread the day he retires

  2025-11-04

• Excellent care

  2025-11-02

• I have been seeing Dr. Carlson for at least seven, eight years. He is an exceptional doctor, always polite, always kind, always attentive, and with a lot of knowledge. And I feel secure and confident that I have been taken care of very well by him. Thank you, Dr. Carlson, and thank you, Mass General.

  2025-10-31

• Excellent as always

  2025-10-28

• Dr Carlson is an exceptional physician.

  2025-10-26

• I didn't know about this appointment. I don't know why? Sorry

  2025-10-16

• He was exceptional. Listened to me and explained what was going on. I was very pleased with is manner.

  2025-10-14

• Excellent

  2025-10-09

• Dr. Carlson is always professional, thorough, and engaged. I have been a patient for a long time and I remain a patient because he is not only an excellent physician, he cares about the patient, knowing and understanding every aspect of the care they are receiving. He is your best advertisement.

  2025-10-13

• It was a wonderful experience !

  2025-10-05