Garrick C Stewart, MD

Garrick C Stewart, MD

Not currently accepting new patients

4.950442 average rating from 226 patient reviews

Specialties

Affiliation

Mass General Brigham

Provider Locations

  • Boston, MA

Dr. Garrick C. Stewart is a cardiovascular medicine specialist at Brigham and Women’s Hospital (BWH) and an instructor in medicine at Harvard Medical School. In addition, he is director of Care New England’s Advanced Heart Failure Program as part of the BWH Cardiovascular Associates at Kent Hospital in Rhode Island.

Dr. Stewart received his medical degree from The Johns Hopkins University School of Medicine. He completed his internal medicine residency at BWH; he also completed fellowships in cardiovascular medicine and advanced heart failure at BWH. Dr. Stewart is board certified in advanced heart failure and transplant cardiology, internal medicine and cardiovascular disease.

The author of 30 peer-reviewed publications, Dr. Stewart’s research focuses on the physiology of advanced cardiac disease, including inflammatory heart disease, cardiac sarcoidosis and ambulatory advanced heart failure. In collaboration with Dr. Lynne W. Stevenson, he designed and launched the Medical Arm of Mechanically Assisted Circulatory Support (also known as MedaMACS), a nationwide registry of medically managed, ambulatory advanced heart failure patients.

Education & Training

  • Fellowship: Brigham and Women's Hospital, Advanced Heart Failure and Transplant Fellowship, 2012
  • Fellowship: Brigham and Women's Hospital, Cardiology, 2011
  • Residency: Brigham and Women's Hospital, Internal Medicine, 2006
  • Internship: Brigham and Women's Hospital, Internal Medicine, 2004
  • Medical Education: Johns Hopkins University School of Medicine, 2003

Board Certifications

  • Internal Medicine, American Board of Internal Medicine
  • Advanced Heart Failure and Transplant Cardiology, American Board of Internal Medicine
  • Cardiovascular Disease, American Board of Internal Medicine

Languages Spoken

  • English

Age Group Treated

  • Adults

Patient Feedback

4.950442 average rating from 226 reviews

  • Great care!

    2026-08-05

  • It is hard discussing severe disease and yet when I left the doctors office, I felt more peace and definitely well informed about my situation

    2026-08-03

  • I'm blessed to be in this part of the country and to have BWH as a health resource. Doctors Garrick Stewart, [redacted] and Dr. [redacted] have addressed my autoimmune disorder, sarcoidosis. We seem to have it under control thanks to this team's care. I especially appreciate Dr Stewart and Dr [redacted] advocating Inflextra (Infliximab) coverage to my insurance provider, BCBS which wasn't covered at the time. The Inflectra treatment has been a game changer in my recovery and remission of sarcoidosis. THANK YOU!

    2026-08-04

  • Dr. Stewart knows my family history and rare genetic piece. I have been trouble shooting symptoms for over a year and Dr. Stewart diagnosed me on sight, where as all my other drs, primary and cardiologist, were sending me to the allergist, ent, rheumatologist, vascular, etc.

    2026-08-04

  • I trust him.

    2026-07-29

  • No other comments. Dr Stewart is excellent

    2026-08-05

  • Excellent professional.

    2026-07-27

  • Dr. Stewart was an excellent communicator, caring and very generous with his time, especially with my son who was on the phone and had questions about the the need to lower my cholesterol. Having had a few significant adverse reactions to medicines, including a statin this was a critical area of discussion for us and Dr. Stewart was most helpful. I also appreciated his thoroughness and willingness to talk about cost implications, since the recommended drug is costly. Overall for me, this was a highly positive experience for a first visit.

    2026-07-26

  • Dr Stewart and his team are outstanding care givers. They are professional, patient friendly and communicate very well!

    2026-07-25

  • The doctor is absolutely wonderful. He's very knowledgeable, very kind, understanding, always willing to discuss anything that I may need to discuss with him. And it's a wonderful experience with the whole hospital, with the nurses, and with the doctor. I want to thank you very much. God bless. Bye-bye.

    2026-07-24

  • Dr Stewart always explains finding perfectly. He gives me as much time as I want and never is impatient or rushes me. He is the best doctor I have ever encountered.

    2026-07-23

  • Dr Stewart is a caring wonderful doctor

    2026-07-22

  • Dr. Garrick Stewart is absolutely superb doctor. I would definitely recommend him to anyone that had asked me. Thank you.

    2026-07-20

  • Always a complete and thorough exam from A-Z

    2026-07-19

  • Extremely professional Everyone was great. I felt like the only patient in the building

    2026-07-18

  • It was good as always.

    2026-06-29

  • Great dr

    2026-06-30

  • dr stewart spent considerable time with me and gave me the attention a world class medical professional copuld ony give

    2026-06-27

  • I feel very comfortable with the Cardiac transplant team, taking care of my son.

    2026-06-27

  • He's the best

    2026-06-23

  • Dr. Garrick Stewart was very well prepared with my background and was very thorough in his discussions and analysis of my current heart issue. I'm very pleased with dr. STEWART and everyone on the team.

    2026-06-21

  • Dr Stewart is wonderful. He's timely, not rushed, knows the patients history and discusses treatment. I always feel comforted by his demeanor.

    2026-06-20

  • Excellent experience, very clear explanations

    2026-06-20

  • Dr. Stewart is the best. It's sometimes a wait to get in to see him, but it's well worth it. If he's running behind, understand that he's giving the same careful attention and advice to someone that he'll give to you, too.

    2026-06-15

  • He's the best.

    2026-06-14

  • My MD moved to NY Langone and she referred me to Dr Stewart. He is EXCELLENT in all respects

    2026-06-13

  • Very well, they always treat me very well there at Brigham. The doctors, the nursing staff, the interpreters, everyone, are always excellent to me.

    2026-06-08

  • Dr Stewart exceeded my expectations. I had expected him to be knowledgeable, but he was also warm and open to all my questions and input. I have a long and varied medical history, and he had completely researched my background before the appointment. He explained things so clearly that my physician daughter said that she wished she had recorded him, so that she could study the way that he had done it. A great experience!

    2026-06-04

  • It is great to have see a provider and leave feeling that you are in good hands and that is the way I felt.

    2026-05-28

  • Dr. Stewart continues to provide outstanding care. My wife is also a patient of his.

    2026-05-27

  • Not much to say. Everyone was very personable and it was like friends getting together to talk about things. It was a very comfortable environment.

    2026-05-26

  • Dr. Stewart is always very respectful and informative regarding my health and health questions and explains things in a way that I can understand.

    2026-05-23

  • Dr G Stew is a great guy and outstanding doctor. I have complete confidence in him and feel lucky to be under his care.

    2026-05-17

  • Dr. Garrick Stewart is an excellent Doctor.

    2026-05-18

  • Dr. Garrick is a phenomenal provider who clearly demonstrates expertise in his specialty area, explains issues clearly and completely , engaged me fully with respect to diagnoses and future testing and treatment options, and showed genuine care for me and understanding for my concerns. Just an excellent doctor!

    2026-05-21

  • I appreciate that staff were respectful and kind and explained what would occur during my echocardiogram and during my set up for the visit

    2026-05-15

  • Knew my medical history well

    2026-05-13

  • Dr. Stewart was very thorough with me, spent a ton of time with me, knew my history, and was very well prepared. Thank you.

    2026-05-08

  • Dr. Garrick Stewart is an amazing Dr. kind, compassionate, very intelligent, informative and so easy to talk to about my condition.

    2026-05-03

  • This team has always been exceptional ! Everyone works as a team , and always has answers to any question I may have.

    2026-05-02

  • nothing really, as this visit was very thorough.

    2026-04-29

  • I feel very fortunate to be cared for by Dr. Stewart. We are approaching 20 years since we first met. He has always taken a very personal and in-depth interest in my overall health, as well as my cardiac health. He's always very well prepared and knowledgeable regarding my situation. Dr. Stewart has made himself available regarding anything that has come up between visits.

    2026-04-28

  • Dr Stewart continues to be a CLASS ACT in an American health care system that can be a little disappointing. He was very attentive, and compassionate. Very tborough in my case analysis and future planning. ....most appreciated by me.

    2026-04-26

  • He took a good amount of time explaining things

    2026-04-23

  • Dr Stewart is amazing!

    2026-04-18

  • I like Dr. Stewart very much. He's an excellent Doctor.

    2026-04-16

  • Doc Stewart is Awesome ! He knows what he's doing and you can talk easily with him !!

    2026-04-16

  • Great doctor.

    2026-04-15

  • This provider made me comfortable in a difficult situation. He reviewed all treatment options in detail and was fully aware of my past history.

    2026-04-13

  • Friendly and let me know how I was doing and how everything was working towards my recovery

    2026-04-11

  • Attention and interest.

    2026-04-09

  • Dr Stewart has my complete trust and as always was very thorough in his investigation of my issue. He has me on the best path for recovery.

    2026-04-08

  • His attentive and thorough exam and thoughtful advice and care instructions are superior

    2026-04-07

  • Dr. Stewart is the best kind of doctor. He is respectful, a great listener, never makes me feel rushed, and explains things in a way I can understand easily. He has a delightful disposition and always puts me at ease.

    2026-03-31

  • I am very comfortable asking questions and have the utmost confidence in his abilities.

    2026-03-30

  • Dr Stewart is the best Doctor I have ever had!

    2026-03-29

  • Dr. Stewart was extremely helpful and spent time with us and knew my history.

    2026-03-24

  • Dr. STEWART is fantastic. He's always open-minded and supportive and helps me kind of figure out what steps I need to take next and does a really great job of problem solving with me through this process. I can't recommend him any more. He's amazing.

    2026-03-25

  • He was made to be a doctor.

    2026-03-23

  • He is the best?He listens to you and looks at the history in front of him.

    2026-03-21

  • He is excellent...He really seems to care about his patients.

    2026-03-21

  • Outstanding

    2026-03-19

  • Awesome md

    2026-03-18

  • Tremendous

    2026-03-18

  • Thorough, things well explained sonI understand everything. Great rapport

    2026-03-18

  • Dr. Stewart is a very knowledgeable and patient physician who listens and explains things very well. I'm very happy to have him as my cardiologist.

    2026-03-18

  • He's been my provider for many years now. He's very compassionate. He's warm. He's very thorough. He comes very prepared. He's an outstanding provider. Thank God for him.

    2026-03-18

  • Dr. Stewart is one of the best physicians I have ever dealt with.

    2026-03-09

  • DR. Stewart has provided the best care for me over many years and in all honesty I feel he has kept me alive

    2026-03-07

  • Our provider was excellent. He spent over an hour with us and we never felt rushed. He explained all clearly and was extremely patient. Fantastic experience.

    2026-03-07

  • Dr Stewart's demeanor is that he listens to you and cares what your saying also talks to you not at you in a reassuring way

    2026-03-07

  • always get great care from dr stewart

    2026-03-01

  • I am so lucky to have Dr Stewart as my cardiologist. He is knowledgeable and takes great care of me. He cares not only for me as a patient but also as a human being. Bi look forward to each visit. He puts my wealthfare at the highest priority. The care at Brigham and Women's is the best I could possibly get.

    2026-02-18

  • Best Cardiologist in the world Best human being in the world Brightest doctor in creation Nicest man imaginable Best provider in all my long experiences

    2026-02-17

  • My experience with Dr. Stewart was Excellent! [redacted]

    2026-02-15

  • I was greatful to get an appointment with this provider. Dr.Stewart was kind, respectful, and he listened to me. We came up with a game plan and I'm looking forward to working with him and his team.

    2026-02-14

  • As always, Dr. Stewart is kind and understanding. He always explains things and answers any questions that I might have. I trust his recommendations and would recommend him to anyone.

    2026-02-14

  • My new cardiologist at the Brigham is concerned with my overall well-being as a patient. Dr Stewart is a knowledgeable, compassionate physician. I believe I will thrive in his care.

    2026-02-06

  • Awesome

    2026-02-01

  • He listens to us!

    2026-01-18

  • Dr. Stewart was very professional and listened to me . He answered all of my questions and made me feel at ease .

    2026-01-18

  • Outstanding!

    2026-01-18

  • Dr Stewart is a top notch doctor in every way. He's a great listener, remembers my history, explains in a way i understand, never rushes me and is very caring. I trust him with my heart!!

    2026-01-17

  • Outstanding in every way

    2026-01-17

  • Dr. Stewart is a very empathetic doctor who listens to and answers every concern. He is always prepared with alternate treatments if this is a concern. He is patient and an outstanding, knowledgeable doctor. There is never the feeling of being rushed out of his office. He is truly the best cardiologist,

    2026-01-20

  • Great first appointment with Dr. Stewart! Knowledgeable, personable and eager to understand my concerns.

    2026-01-10

  • Dr. Stewart was extremely professional and he was very thorough in his review of my condition, how we should move forward, and answered any of my questions and really was, I felt, you know, a great listener and obviously a cardiologist that is very competent and I would consider him one of the elite in his field and I walked away very satisfied with the appointment and also all the conversation with Dr. Stewart.

    2025-12-31

  • I felt reassured that I was being treated for my condition in the best way medically. Dr. Stewart listened carefully and answered all of my questions. He also helped me to understand my condition and what to expect with treatment. I am hopeful for a good recovery.

    2025-12-20

  • Dr. Stewart is amazing....he has a great knowledge base, explains everything in easy to understand terminology, several times, and is one of the most compassionate doctors I have ever met

    2025-12-20

  • [redacted] Dr. Derrick Stewart is exceptional in communication and listening and explaining. And myself and my wife, who is a nurse, are very, very, very pleased with his.

    2025-12-14

  • Good doctor

    2025-12-11

  • Thoughtful, informative and easy to talk with.

    2025-12-11

  • Dr. Garrick Stewart was very thorough in explaining the current state, what he would like to see moving forward and what the end result(s) should be. He handled scheduling all future appointments and entered a new prescription to my pharmacy taking care of all action items. Spoke to me.. not at me.. listened to my story, my situation(s). I work at a hospital so I know a good, caring provider vs. a bad one. Dr. Stewart is one of the good ones, hands down

    2025-12-07

  • Dr. Stewart is an exceptional cardiologist! I have grown to trust him explicitly and look forward to my visits with him.

    2025-12-01

  • Awesome tell him thank ? ? ?

    2025-11-29

  • This healthcare professional is excellent. Dr. Stewart is number one at this hospital. Thank you.

    2025-11-28

  • Excellent!

    2025-11-27

  • Dr Stewart is terrific! He always explains things and takes his time doing so. For this appointment, Dr Stewart fit me in as I needed clearance for upcoming surgery. So thankful for him making the time in his busy schedule to do that! I'm so fortunate to have him as my cardiologist!

    2025-11-24

  • I always appreciate Dr. Stewart's input and feedback. He's an excellent listener and communicator.

    2025-11-24

  • Hi, Dr. Stewart is just super. We love him.

    2025-11-24

  • I have great confidence in Dr Stewart and the care he has provided. He has my total respect.

    2025-11-22

  • He is always thorough and we discuss medication concerns and agree on the same things.. He then ordered changes and sent them to the pharmacy. They were ready for pick up when we arrived home!! He is definitely a ?????????? Cardiologist as well as transparent in his listening and communication skills-extremely patient focused!!!

    2025-11-22

  • Dr. Stewart came to our appointment fully prepared to discuss results from my PET/CT scan and possible approaches, next steps, and treatment plans. Dr. Stewart is also an exceptionally good listener. Given my condition, my wife and I often have a multitude of questions. Dr. Stewart patiently listens and then responds thoughtfully, often with questions which provide added context and depth. This has resulted new insights and and enhanced treatment options which would not have been possible without his willingness to actively engage with his patients and their family members. As a cardiologist who works with patients and families who are in potentially dire medical situations, Dr. Stewart will be one of the key influencers in how their future will play out. But instead of using this power in discussions with his patients, Dr. Stewart empathy and respectful clear communication. Checks to ensure that messages are understood without confusion, and that his patients and their family leave feeling heard. Dr. Stewart is an exceptional physician, and human. We are very lucky to have him in our court and appreciate the opportunity to share this important feedback.

    2025-11-27

  • This was a first meeting with them as my new cardiologist as my prior doctor had retired. The meeting, discussion of test results, medications, physical exam and discussion of medical history all went exceptionally well. I couldn't be more pleased or satisfied and look forward to Dr Stewart taking on my case.

    2025-11-19

  • Wonderful!

    2025-11-15

  • Excellent communication and efficient delivery of health care

    2025-11-15

  • Fantastic Doctor an asset to your hospital

    2025-11-14

  • He's terrific across the board.

    2025-11-12

  • We are very fortunate to have Dr. Stewart as our cardiologist. He's excellent in every way, and we have complete confidence in him. He gives us his total attention and he is so kind and knowledgeable.

    2025-11-12

  • I consider myself extremely lucky to be in the care of Dr Garrick Stewart. Although an expert in his field, he is never condescending, reviews our chart carefully, and explains, in clear terms, the best strategy going forward. He is a credit to your organization and one of the best doctors I have ever encountered

    2025-11-12

  • Dr Stewart goes above & beyond to take care of me. He's one of the BEST doctors I've ever had.

    2025-11-07

  • He always treats me with respect and listens to my questions

    2025-11-07

  • Knowledgeable, user friendly, thorough, empathetic-great doctor.

    2025-11-01

  • Dr Stewart is the best. So smart and genuinely caring. I adore him.

    2025-10-13

  • Dr Stewart was excellent

    2025-10-08

  • Respectful, very knowledgeable, very responsive

    2025-10-04

  • Always makes time for me!

    2025-10-01

  • The office & nursing staff were great. Took care of me immediately. Dr Stewart was off the charts. Read my charts before he seen me and answered every question and spent as much time with us as needed

    2025-09-29

  • Dr. Stewart took extra time to answer all my questions.

    2025-09-28

  • I get the best care from Dr Stewart

    2025-09-27

  • Dr Stewart took the time to review where I was in my cardiac issues and where he thought I could be and how we (myself and the cardiac team) would get there. This left my wife and I feeling very reassured and grateful as the tenor of our conference was calm and directed.

    2025-09-25

Accepted Insurance

  • Tufts Medicare Preferred
  • Wellpoint
  • Railroad Medicare
  • Blue Cross Blue Shield Medicare
  • Blue Cross Blue Shield
  • Commonwealth Care Alliance
  • Medicaid RI
  • Medicaid VT
  • Harvard Pilgrim Health Care
  • Medicaid CT
  • Humana
  • United Health Care
  • Coventry
  • Multiplan
  • Fallon Health
  • Medicaid ME
  • Medicare ACO
  • Medicare
  • Cigna
  • Medicaid NH
  • Mass General Brigham Health Plan
  • WellSense
  • Tufts Health Plan
  • MassHealth
  • Aetna
  • Beech Street
  • TriCare
  • Senior Whole Health