
Highlights
Age Groups Seen
- Adults
- Geriatrics
Languages
- Spanish
- English
Gender
FemaleAbout Sarah V Tsiaras
Sarah Tsiaras received her Bachelor of Arts degree from Dartmouth College and her Medical Doctor degree from Harvard Medical School. She went on to complete her residency in internal medicine and fellowship in cardiovascular disease at Brown University in Providence, RI. There she also served as chief medical resident. She is now a staff member of the cardiovascular division and is seeing patients at Massachusetts General Hospital Heart Center's Boston location, as well as Waltham location, where she has served as medical director since 2016. She is a member of the Women’s Heart Health Program, where she also leads the MGH Sports SCAD Program, a collaboration between the Women’s Heart Health Program and the Cardiovascular Performance Program.
Locations
- Massachusetts General Cardiology Clinic
- 52 Second Avenue, Green Building, Suite 520, Waltham, MA 02451
- Get Directions
- phone: 781-487-6000
- fax: 781-487-2978
- Massachusetts General Noninvasive Cardiology Clinic at the Corrigan Minehan Heart Center
- 32 Fruit Street, Yawkey Building, 5th Floor, Suite 5B, Boston, MA 02114
- Get Directions
- phone: 617-724-6750
- fax: 617-724-6767
Expertise
Education
- Fellowship: Rhode Island Hospital/Lifespan, Cardiology, 2011
- Residency: Rhode Island Hospital/Lifespan, Internal Medicine, 2008
- Medical Education: Harvard Medical School, 2004
Board Certifications
- Internal Medicine: American Board of Internal Medicine, 2011
- Internal Medicine: American Board of Internal Medicine, 2008
Insurance
- Aetna
- Beech Street
- Blue Cross Blue Shield
- Blue Cross Blue Shield Medicare
- Cigna
- Commonwealth Care Alliance
- Coventry
- Fallon Health
- Harvard Pilgrim Health Care
- Humana
- Maine Community Health Options
- Mass General Brigham Health Plan
- MassHealth
- Medicaid CT
- Medicaid ME
- Medicaid NH
- Medicaid RI
- Medicaid VT
- Medicare
- Multiplan
- Railroad Medicare
- Senior Whole Health
- TriCare
- Tufts Health Plan
- Tufts Medicare Preferred
- United Health Care
- Wellpoint
- WellSense
- WellSense NH
Ratings & Reviews
4.9 out of 5
301 ratings, 134 reviewsThe Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.
- Reviewed on 4/5/2026
Everything was perfect
- Reviewed on 3/31/2026
Dr Tsiaras is excellent, love having her as my cardiologist.
- Reviewed on 3/30/2026
This is an excellent doctor. I was worried when my precious one moved on but the replacement has been just as good!
- Reviewed on 3/29/2026
Valerie was excellent. Breathing exercises before bp really helped calm down.
- Reviewed on 3/29/2026
She knows my health issues, listens carefully and offers good advice.
- Reviewed on 4/1/2026
I am glad I have her as my cardiologist. I take a lot of medications and feel comfortable doing so for the time being because I have confidence that the doctor is working for my success.
- Reviewed on 3/29/2026
Dr Tsiaris was attentive and heard my concerns. Treated me with respect and concern.
- Reviewed on 3/28/2026
Dr provided me with a professional attitude very helpful to all questions I asked never had a problem with the office
- Reviewed on 3/28/2026
very good
- Reviewed on 3/28/2026
Dr. Tsiaras is an excellent cardiologist ! She is patient, listens to allI have to say and responds clearly .
- Reviewed on 3/28/2026
Dr. Tsiaras is a terrific doctor. Smart, attentive, and she always makes me feel like I am in the best possible hands!
- Reviewed on 3/26/2026
Fortunate to have such a well qualified and compassionate doctor
- Reviewed on 3/25/2026
She was quite personable and easy to talk to in this my first encounter with her. At the same time, I question the system that has a cardiologist doing the initial evaluation by remote. As a retired physician myself, I question the wisdom of this practice.
- Reviewed on 3/25/2026
I just want to say that Dr. Tsiaras is one of the most compassionate human beings I've ever met and so appreciative that I'm under her care for my SVT and I look forward to seeing each and every visit. I'm extremely thankful for her professionalism and always goes above and beyond on every level professional and human there is. Thank you very much.
- Reviewed on 3/23/2026
Dr. Sarah Tsiaras is one of the best physicians I have ever worked with! She is extremely knowledgeable, helpful, courteous and friendly! I would highly recommend her to anyone needing a cardiologist referral.
- Reviewed on 3/22/2026
Dr. Tsiaras is a pro who inspires confidence.
- Reviewed on 3/21/2026
Awesome!
- Reviewed on 3/21/2026
I have full confidence in Dr Tsiaris. She is very thoughtful about my situation and co morbidities and takes my whole health into consideration. I always feel well-cared for by Dr Tsiaris and appreciate being able to see her for my cardiovascular issues.
- Reviewed on 3/15/2026
Dr Sarah V Tsiaras is excellent. I am fortunate to have her as my doctor.
- Reviewed on 3/13/2026
Dr and staff always pleasant helpful and professional
- Reviewed on 3/13/2026
I saw a Nursing Assistant for EKG and Vitals
- Reviewed on 3/12/2026
Excellent experience see Dr Tsiaris
- Reviewed on 3/11/2026
I love all my mass general doctors and their staff. They do a great job.
- Reviewed on 3/10/2026
I felt heard and I felt that they Dr was on my side to help problem solve. I left feeling reassured
- Reviewed on 3/1/2026
She was caring and thoughtful
- Reviewed on 2/18/2026
She was personable, and easy to talk to. She explained my test results in a way that I could understand; providing reasonable options for how to manage my physical activities given my condition. She invited my questions and answered them to the best of her ability and the time frame we had to work with. I still would like to better understand all the 9 panels of data from my CPET. Perhaps when I get the final report there will be more information there. Dr Tsiaras shared excellent notes from my visit in the portal, which was really helpful for both me and my PCP. In her notes she even asked if I had any more questions! This kind of open dialogue feels so important - and compassionate- when dealing with an uncommon diagnosis.
- Reviewed on 2/16/2026
excellent as always!
- Reviewed on 2/15/2026
Sure took the time needed to make sure I understood what happened to me. I never felt rushed and every question I had was answered thoroughly.
- Reviewed on 2/15/2026
The cardiologist was very professional and very kind . All my questions were answered. A very good visit.
- Reviewed on 2/15/2026
I had 2 appointments, the first for an Echo Cardiogram, the second a follow-up with the cardiologist. These were preceded by a nurse/clinician who took my vitals. Everything went fine, no complaints on any score.
- Reviewed on 2/25/2026
Professional and caring experience.
- Reviewed on 2/8/2026
Absolutely LOVE Mass General and my Doctor!
- Reviewed on 2/15/2026
Sarah Tsiaras, MD Cardiology is the best!
- Reviewed on 2/8/2026
She is an excellent provider!
- Reviewed on 2/6/2026
I am very happy with Dr. Tsiaras. I feel she is very knowledgeable. She listens. She shows care and concern and is trying to give me the best care and help for my condition that she can. I highly recommend her. I've even sent my family to her.
- Reviewed on 2/4/2026
Excellent in every way, great expertise and caring manner.
- Reviewed on 2/1/2026
[redacted] I was very satisfied with the visit and her points of view
- Reviewed on 2/5/2026
Was a telephone visit. Doctor was very thorough with her questions and answers.
- Reviewed on 1/31/2026
I assume you are talking about the woman o who did my echo test. Or maybe you are talking about Dr. T. who ordered the test. In both cases the experience was very positive and much appreciated.
- Reviewed on 1/31/2026
I am happy to be Her patient.
- Reviewed on 2/11/2026
Dr. Sarah Tsiaras explained a new phenomenon to me, calcification of arteries. [redacted] It was a very productive zoom call.
- Reviewed on 1/28/2026
Dr. Tsiaras is a very thoughtful and considerate cardiologist who engages in dialogue and helps make decisions in a very thoughtful and calm manner. Her care is very much appreciated and I consider her top-notch. Thank you.
- Reviewed on 1/18/2026
I feel very comfortable and assured of my care.
- Reviewed on 1/18/2026
All positive
- Reviewed on 1/20/2026
This was my first meeting with this provider. I had just been transferred to her care after seeing a cardiology fellow for the past couple of years. I appreciate the seamless and comfortable transfer. This provider was very knowledgeable, experienced, focused and informative. It was easy to develop trust and confidence in her.
- Reviewed on 1/15/2026
I am constantly amazed and thankful for how helpful Dr. Tsiaras and her entire team are. They are always so responsive.
- Reviewed on 1/14/2026
Dr. Tsiaras does a thorough examination on my current condition and gives me advice or recommendations on my health.
- Reviewed on 1/14/2026
The provider was excellent, amazing. I wish I had more doctors like her that would take the time to review everything with me as she did. I can't say enough about Sarah. Thank you.
- Reviewed on 1/14/2026
I feel like the nurse was very nice. The doctor was very nice. They both answered any questions that I had and any concerns that I had.
- Reviewed on 1/14/2026
Very please with everyone I spoke with and met with during this appointment.
- Reviewed on 1/11/2026
Dr Tsiaris has been very open and available when I need her. She knows me and my healthcare needs and always has my best interests at heart . I have full confidence in her and [redacted].
- Reviewed on 12/29/2025
Acknowledged and precise
- Reviewed on 12/31/2025
She is thorough and careful and very caring and personable. I feel that she considers me as a whole person and takes time to determine the best course of care.
- Reviewed on 12/29/2025
Excellent
- Reviewed on 12/29/2025
Explained everything
- Reviewed on 12/29/2025
Dr Tsiaras has been following me. She was well prepared for my recent visit.
- Reviewed on 12/23/2025
Dr. Tsiaras is a very thorough and caring doctor.
- Reviewed on 12/22/2025
Dr. Sarah Tsiaras is an excellent listener and exceptional Doctor. She was very informative, communicated well to us, and showed a wonderful compassion for my situation.
- Reviewed on 12/22/2025
Dr. Tsiaras and her staff are always very, very pleasant and explain everything in the proper way. Even if you don't understand it, they go over everything. Very, very comfortable. I've recommended her many times to many different people. We appreciate all that they do. Thank you.
- Reviewed on 12/8/2025
Outstanding professional. Worked with me throughout my treatment. Always listened to me and took my perspective into account as we progressed. A kind and considerate highly qualified cardiologist of the highest order. In my eyes, a "rock star" in her field of practice. A blessing to have access to her and this level of care. Forever grateful.
- Reviewed on 12/7/2025
Dr Tsiaras thoughtfully reviewed my case. I truly appreciated the depth and thoroughness of the examination she performed-more comprehensive than anything I received even during my week inpatient the hospital. As a nurse of 46 years, I know how rare it is to find a physician who demonstrates such professionalism, care, and genuine attentiveness. I came to my appointment feeling frightened and unsure of what to expect, but I left feeling confident and reassured that I will be okay. That peace of mind is a gift.
- Reviewed on 12/9/2025
Dr Tsiaras is attentive, she answers all my questions with clear explanations, she is thorough and extremely knowledgeable.
- Reviewed on 12/8/2025
Totally satisfied w my experience
- Reviewed on 12/7/2025
Dr Tsiaras is very caring and addresses all my questions & concerns. She is very good about following up.
- Reviewed on 11/30/2025
Always a pleasure to see Dr. Tsiaras. Very kind, caring and thorough.
- Reviewed on 11/26/2025
Hi, yep, this is [redacted]. I just want to say Dr. Tsiaras is absolutely wonderful, along with her staff who is just as wonderful, knowledgeable, and attentive. I really appreciated the one-on-one time with Dr. Tsiaras. This is my first time to visit with her, and it was a really good experience.
- Reviewed on 11/23/2025
Excellent
- Reviewed on 11/21/2025
Dr. Tsiaras came highly recommended and for good reason - she's the very best. She's professional, respectful and friendly. She listens to questions and her answers and explanations are always easy to understand. I'm grateful that Dr. Tsiaras is my cardiologist and would recommend her to my family and friends.
- Reviewed on 11/15/2025
All staff and doctor very caring and knowledgeable. Would highly recommend.
- Reviewed on 11/15/2025
She is the Best.
- Reviewed on 11/12/2025
She has been my cardiologist for several years, helped me get difficult blood pressure under control, monitors my various problems. I think she is an excellent doctor.
- Reviewed on 11/12/2025
We really like Sarah. My husband, he already booked an appointment with her. So he's going to opt her as his cardiologist.
- Reviewed on 11/10/2025
She was courteous and very knowledgeable. She explained everything very well.
- Reviewed on 11/9/2025
She was excellent. Caring, informative, took a holistic view and listened to me. She also gave me guidance in a way I could comprehend.
- Reviewed on 11/9/2025
She is the best! Wonderful at her job.
- Reviewed on 11/9/2025
Dr Tsiaras is a brilliant and kind doctor, a very special and exceptional doctor.
- Reviewed on 11/8/2025
I left the office unclear about the medication she prescribed. I thought it replaced an existing medication but she was adding to it. I was very unclear about when I was to have the echocardiogram. I thought right away but she specified a year from now. [redacted] I felt the dr was very rushed. Pleasant but rushed and I left confused and uncertain
- Reviewed on 11/8/2025
Very professional, good listener who cares about the patient
- Reviewed on 10/23/2025
She's always pleasant, professional and thorough. I recommended her to my brother and sister...both are now patients.
- Reviewed on 10/22/2025
Dr. Tsiaras is fabulous! Very thorough, intelligent, compassionate and a great listener. So lucky to have her on my team!
- Reviewed on 10/15/2025
Dr. Tsiaras is extremely knowledgeable and knew my case well. Her recommendations are very acceptable and insightful, and she's a top-notch doctor in every way you look at it.
- Reviewed on 10/9/2025
This was my first appointment with Dr Tsiaras and I was very impressed with her demeanor and knowledge. I was very comfortable talking to Dr Tsiaras. She didn't rush me and she is a good listener. I am very pleased with Dr Tsiaras.
- Reviewed on 10/8/2025
Dr. Tsiaris is a very thoughtful, compassionate, and thorough physician.
- Reviewed on 10/4/2025
Every doctor should be as caring and understanding as she was. Very professional and thorough.
- Reviewed on 10/1/2025
Sarah was great!
- Reviewed on 9/28/2025
I have a 10 year relationship with Dr Tsiaris and NP [redacted], so they know me and that helps a lot. They can be straightforward and calm.
- Reviewed on 10/1/2025
Knowledgeable and friendly provider
- Reviewed on 9/28/2025
She's the best!
- Reviewed on 9/26/2025
I feel she listens, is attentive to all my needs, and is very thorough and a very good provider.
- Reviewed on 9/22/2025
Dr. Tsiaras has a warm and kind demeanor and always takes time to listen to my questions and concerns and explain things to me in a way I can easily understand.
- Reviewed on 9/20/2025
Exclent experience
- Reviewed on 9/14/2025
Dr. Tsiaras was wonderful and caring. After I left her office I not only felt reassured, I felt I had just seen a therapist. She listened intently and offered kind words. Her knowledge and experience gave me comfort given my situation.
- Reviewed on 9/10/2025
I just want to say that Dr. Tsiaras was very impressive. She was very intelligent. I felt like she cared and it was a refreshing change from my PCP and Exeter. That's all I have to say.
- Reviewed on 9/7/2025
Great all round.
- Reviewed on 9/7/2025
All was good as expected
- Reviewed on 9/4/2025
They all very good thanks for everything they did for me.
- Reviewed on 8/30/2025
Excellent doctor
- Reviewed on 8/28/2025
My condition only warrants returning once a year. I always leave feeling listened to and supported. This time the doctor gave me information on an upcoming information session that focuses on SCAD specifically which is very valuable in helping me understand the condition more clearly. She is always respectful, patient and kind.
- Reviewed on 8/22/2025
Dr. Tsiaras has been tremendously responsive and is very, very up to date on my very complicated cardiac history and was passed on from my previous cardiologist who actually was her mentor. She's fantastically thorough, listened well, and really has a great grip on what is a very complicated cardiac diagnosis. So, highly recommended and very sorry to lose her.
- Reviewed on 8/29/2025
This was my initial visit with Dr. Tsiaras. She listened to my concerns and she actually reached out to my phrenologist to discuss her concern regarding my kidney bloodwork results. Dr. Tsiaras and my phrenologist were able to coordinate changes to my medication and my appointment schedule. It was a wonderful initial visit and I look forward to continuing my cardiac care with Dr. Tsiaras.
- Reviewed on 8/19/2025
The doctor was thorough and caring
- Reviewed on 8/17/2025
Doctor Tsiaras is amazing. She is always smiling and ready to answer any questions She is precise, and allows plenty of time for questions and a little personal talk she's very knowledgeable in her field makes you feel like you are in good hands
- Reviewed on 8/17/2025
Understanding in regard to my age ([redacted]), caring, thorough.
- Reviewed on 7/28/2025
Great visit.
- Reviewed on 7/27/2025
Dr Tsiaras is fantastic!
- Reviewed on 7/27/2025
Top notch care
- Reviewed on 7/26/2025
Dr Tsiaras is wonderful- so caring and knowledgeable. I feel so fortunate to have her as my cardiologist!
- Reviewed on 7/24/2025
The medical assistant was professional and outstanding! He was very thorough and explained the process step by step for vitals and EKG. Dr Tsiaras was very comprehensive with the visit. Knowing my history, symptoms and mediation titrations off the top of her head was comforting. She explained new mediation options and suggested we try it. She was encouraging with lifestyle and relatable to me. She also listen intently to a new family history, explained my possible risks and my current treatment being sufficient. This was reassuring.
- Reviewed on 7/23/2025
She is highly knowledgeable, attentive, and caring.
- Reviewed on 7/23/2025
Very capable and caring physician.
- Reviewed on 7/21/2025
Dr. Tsiaras is outstanding and I travel almost three hours to reach her every year.
- Reviewed on 7/20/2025
Excellent, collaborative clinical manner. Intelligent and thoughtful. Wish there were more like Dr. Tsiaras.
- Reviewed on 7/19/2025
She is a kind, caring, and brilliant cardiologist who cares about her patients
- Reviewed on 7/19/2025
She was thourgh, articulate, she understood other issues not specifically related to cardiology. And respected my input and questions I had.
- Reviewed on 7/19/2025
Always the best experience
- Reviewed on 7/17/2025
Visit was conducted in a very professional manner. All questions were answered at a level that was clearly understood.
- Reviewed on 7/16/2025
I have nothing else to say about this provider because I only see her once a year and when I first saw her they never did figure out what was wrong with me.
- Reviewed on 7/14/2025
wonderful care
- Reviewed on 7/13/2025
Dr. Tsiaras is a wonderful doctor. I am so lucky to have her as my cardiologist!
- Reviewed on 7/11/2025
Dr. Tsiaras inspires my trust and confidence.
- Reviewed on 7/7/2025
She always does an excellent job!!
- Reviewed on 7/5/2025
Was up to date on all aspects of my medical history
- Reviewed on 6/14/2025
GREAT
- Reviewed on 6/14/2025
Dr. Tsiaras is very welcoming she is patient and takes time to listen to her patient.
- Reviewed on 6/17/2025
Dr. Tsiaras spent considerable time addressing my medical concerns. She is very knowledgeable, easy to converse with, empathetic and concerned. I did not feel rushed at all and have already recommended her to several family members.
- Reviewed on 6/14/2025
Dr. Tsiaras is the best!! I feel like her level of expertise is excellent and her care for me is exceptional!!
- Reviewed on 6/13/2025
Dr. Tsiaras has been very helpful over the many years I have seen her. She has been very responsive in guiding me to a needed surgery and recovery.
- Reviewed on 6/12/2025
This provider has always listened to my comments, concerns and has given good feedback. I have full confidence in her.
- Reviewed on 6/11/2025
Could not have been better!
- Reviewed on 6/8/2025
Excellent.
- Reviewed on 6/7/2025
She is very trusting and professional. I have recommended her to other colleagues and friends
- Reviewed on 6/7/2025
She was thorough, gentle, empathetic and encouraging
- Reviewed on 6/10/2025
The provider was kind, thoughtful and knowledgeable.
- Reviewed on 5/25/2025
Can't get any better.