Jonathan M Bisaillon, MD, MS

Jonathan M Bisaillon, MD, MS

Not currently accepting new patients

4.885893 average rating from 319 patient reviews

Specialties

Affiliation

Mass General Brigham

Provider Locations

  • Upton, MA

Education & Training

  • Fellowship: UMass Chan Medical School, Cardiovascular Diseases, 2022
  • Residency: UMass Chan Medical School, Chief Resident - Internal Medicine, 2019
  • Residency: UMass Chan Medical School, Internal Medicine, 2018
  • Medical Education: Albany Medical College (New York), 2015

Board Certifications

  • Cardiovascular Computed Tomography, Certification Board of Cardiovascular Computed Tomography
  • Cardiovascular Disease, American Board of Internal Medicine
  • Nuclear Cardiology, Certification Board of Nuclear Cardiology (CBNC)
  • Internal Medicine, American Board of Internal Medicine

Languages Spoken

  • English

Age Group Treated

  • Adults
  • Geriatrics

Patient Feedback

4.885893 average rating from 319 reviews

  • pleasant, knowledgeable

    2026-05-22

  • My experience with Dr. Bisaillon has been nothing but exceptional. He explains everything in layman's terms so anybody can understand it. He's always open to my questions and is just very caring as the rest of his staff is as well. I really actually enjoy going there.

    2026-05-22

  • Very professional and polite and showed genuine concern.

    2026-05-21

  • My experience there is always a positive experience

    2026-05-21

  • He is attentive, easy to communicate with, answers questions clearly.

    2026-05-13

  • Very impressed.

    2026-05-12

  • I love my doctor at reliant medical group Milford Mass ?????

    2026-05-13

  • Very knowledgeable provider.

    2026-05-12

  • The provider was excellent and explained everything perfectly and was very personable.

    2026-05-14

  • Very happy and confident in my Cardiologist and staff

    2026-05-11

  • I am very impressed with Hopedale Cardiology. I am very impressed with my doctor and I would recommend these doctors to anybody, anytime. Thank you.

    2026-05-11

  • Doctor was on time, courteous and professional. Explained test results, inquired about any possible cardiac issues I might have, discussed medications and inquired if I needed any refills. Set next follow up for a year, but call if any cardiac issues developed.

    2026-05-09

  • I was comfortable, and the doctor was very caring and thorough

    2026-05-09

  • My cardiologist is the most thorough Dr. I have ever been to. He brought up heart issues that reassured us that he was a good choice.. I highly recommend Dr. Bisaillon

    2026-05-09

  • The doctor didn't rush me and he explained things carefully answering my questions with care.

    2026-05-09

  • The Dr was excellent, attentive and made you feel comfortable. Would recommend him.

    2026-05-08

  • FINE

    2026-05-07

  • Everything I hope for in a visit

    2026-05-07

  • Dr. Bisaillon always puts me at ease with his outstanding chairside manner. Always professional but also friendly and ready to listen to anything I want to discuss about my health. His treatment, along with my primary physician, has brought me back to good health and an active lifestyle.

    2026-05-06

  • It was a good experience. Always treated properly and professionally.

    2026-05-02

  • He explained what could be the consequences with the reason my PCP sent me to see him.

    2026-04-30

  • Dr. Bisaillon was extremely helpful and listened to all my concerns and explained with diagrams about my issues.

    2026-04-27

  • Prompt, knowledgeable,professional

    2026-04-28

  • They have always been efficient knowledgeable and courteous.

    2026-04-10

  • Dr. Bisaillon is a wonderful, caring person and I'm so grateful for his care. He's calm and soft spoken and makes me feel very comfortable talking to him. He's respectful and always listens to my concerns and gives me excitement advice. I highly recommend him!!

    2026-04-08

  • Helpful and listen

    2026-04-05

  • He was kind and informative. Listened and provided helpful feedback to questions. Physical exam was minimal, less than I would have expected and not accurate with electronic report.

    2026-04-04

  • The doctor was pleasant and not rushed. He explained test results very well and provided information about further testing. He was knowledgable in his field.

    2026-04-05

  • He was very helpful. I think I would have more questions if I was more knowledgeable before the visit.

    2026-04-14

  • Excellent

    2026-04-01

  • Always professional and courteous to me

    2026-04-01

  • Dr Bisaillon was on time courteous and showed concern about my heath and answered my questions I was very pleased that during my visit I was given an EKG and Dr Bisaillon was able to give me the results. I was very pleased with my visit.

    2026-04-02

  • Dr Bisaillon was thorough and was easy to talk with. He listened carefully to my concerns and addressed each one in a way that was easy for a layperson to understand.

    2026-03-31

  • Wonderful office experience. Very efficient. No wait times.

    2026-03-30

  • The provider made me feel relaxed which is extremely important when seeing a Cardiologist. He had good eye contact with me and asked questions, waited for my answers then explained clearly the answers. I also feel comfortable while I'm there. It's not an appointment that you really want to go to!!

    2026-03-29

  • All good

    2026-03-26

  • He was very good.

    2026-03-25

  • This is the best care I've ever received. From the moment I walked in, the receptionist went above and beyond to make me feel comfortable and assured me I was in good hands. The nurse I saw was very respectful and made sure I was okay throughout every part of the process. As for the doctor, he was very knowledgeable and answered every one of my questions to the best of his ability. He noted my worries and concerns and explained how he was going to help. Overall, amazing experience after having dealt with bad ones in the past.

    2026-03-24

  • My Annual Check-up went very smoothly.

    2026-03-11

  • Very good communicator- involved me in learning about my condition by showing me results graphs and explaining relevant indicators. I felt very knowledgeable about my condition when our appointment was concluded.

    2026-03-09

  • Very professional listened to me very knowledgeable A very pleasant person

    2026-03-07

  • Dr. Bisaillon, is very nice and seems genuinelly interested in my issues. He listens carefully, is very interested in my input, and willing to discuss my options.

    2026-03-04

  • Both provided excellent care

    2026-03-03

  • Professional

    2026-02-18

  • A caring physician who knew my personal history and was caring.

    2026-02-17

  • Always have a good experience with the office on my yearly appointment

    2026-02-17

  • First visit with Dr. Bisaillon, nice office, nice folks, very kind, very warm, listens, caring. Not a bigger fan about having a heart attack, but if you have to have a heart attack, well, this is a nice doctor to have to see afterwards for try to get you back on your meds and get you on the right track. [redacted]

    2026-02-14

  • Dr. Bisaillon is very, very, very thorough. He explains everything. If you can't understand it, he'll draw it on a piece of paper and making sure that everything that, any questions that you ask, they will be answered and very well explained.

    2026-02-06

  • Always comfortable with this office

    2026-01-28

  • I was given information about my heart and results. It was explained clearly; all my questions were answered.

    2026-01-29

  • The best and would recommend him to all.

    2026-01-25

  • it is always very good

    2026-01-22

  • This was my first visit to see this provider. I was extremely happy with the entire process from setting up an appointment as a new patient to my visit and the time he spent with me and all aspects of the visit. Everyone I met with from check in to check out was kind, polite and efficient. Great experience.

    2026-01-22

  • Dr. Bisaillon was excellent. He went over my procedure results with me, and explained them in a manner in which it made it easy for me to understand them. He answered all my questions and I left feeling very satisfied after the visit. Every visit I have with him has always been excellent.

    2026-01-22

  • Dr. Bisaillon is amazing. He answered all of my questions and helped me to relax. He treated me with dignity and respect. I could not be more impressed. I really feel like I am in good hands. He developed a plan and explained it in detail to me. He asked for my input. He asked me questions. He made sure I understood everything. I cannot say enough good things about him.

    2026-01-21

  • Dr Bisaillon is always attentive and very nice.

    2026-01-21

  • I am very comfortable conversing with my doctor. He is respectful and knowledgeable concerning my well being. I have full confidence in his ability to care for me.

    2026-01-21

  • Doctor was supportive and encouraging. He took a sincere interest in me as a person. He was highly knowledgeable and answered all my questions. He listened to me and treated me with respect. Outstanding doctor in every way.

    2026-01-19

  • Great visit. I learned a lot. Respectful of time.

    2026-01-18

  • He was very polite and informative. Answered army questions.

    2026-01-17

  • My first visit, was very appreciative of the time and respect I was given

    2026-01-08

  • Very professional and courteous. I have been going to this office for a very long time. I wouldn't change a thing.

    2026-01-08

  • Yes, Dr. Bisaillon is an excellent doctor and I feel very confident with him.

    2025-12-24

  • He explained my problem in a way I could understand. He was very professional

    2025-12-22

  • Dr B was great. Attentive and he explained everything in a respectful manner. He answered all my questions in great detail. I left the appointment knowing more than when I arrived. Highly recommend.

    2025-12-22

  • The doctor is very nice, knowledgable & attentive.

    2025-12-23

  • This was my first appointment with Dr. Bisaillon. He explained and diagramed exactly what had occurred when I had my heart attack. He had taken the time to familiarize himself with my medical history and explained all of my new medications. He listened intently and I did not feel like the appointment was rushed at all. It was a very good experience.

    2025-12-19

  • it was fine

    2025-12-17

  • I have no complaints

    2025-12-14

  • Very good

    2025-12-11

  • First time meeting. Very nice & thorough. I didn't feel rushed. He definitely gave me options before rushing to throw me on medication which i appreciated

    2025-12-09

  • It has always been a pleasant experience when coming to this office for an appointment.

    2025-12-08

  • Everyone was great.

    2025-11-26

  • He was very thorough in explaining things and what the next steps would be

    2025-11-25

  • Very detailed, well spoken and knowledgeable

    2025-11-19

  • Very knowledgeable and very happy to explain what was going to Take place nexy

    2025-11-19

  • They are always professional,organized and respectful. I wish all medical offices were like this.

    2025-11-20

  • Dr. Bisaillon was amazing! First time for me seeing him. He listened and explained what my issues were. Read over all my information and came to a conclusion that we both agreed on. His decision to eliminate one of the meds I was on, was the perfect solution to my bradycardia! I'm feeling so much better! Thank you Dr. Bisaillon!

    2025-11-18

  • A very pleasant experience

    2025-11-15

  • Amazing experience. The nurse was kind and informing and Dr Bisaillon was amazing. Explained everything, listened with intent and was very clear. Would recommend every time.

    2025-11-12

  • Dr. Bisaillon is always concerned about my thoughts on my care and listens to my opinion.

    2025-11-12

  • VERY GOOD VERY LITTLE WAIT TIME .

    2025-11-08

  • I truly appreciate your doctors and nurses. They explain everything and answer my questions.

    2025-11-08

  • Overall, everything was very good. The nurse was very good and the doctor was very good. No complaints.

    2025-11-07

  • They always take on time and are courteous and caring. They all listen, explain findings

    2025-11-01

  • Very satisfied

    2025-10-25

  • great experience

    2025-10-23

  • Dr B is the man. Great doctor. Very thorough

    2025-10-22

  • Hate to say it as a doctor's visit it was fun.

    2025-10-20

  • It was my first visit and the doctor made me feel comfortable. I was not afraid to ask any question and Dr. Bisaillon was respectful and patient with me. He reminds me of doctors who helped me when I was younger,never rushing and caring about my health.

    2025-10-17

  • I felt like Dr. Bisaillon listened to me, and I did not feel rushed.

    2025-10-18

  • Professional, knowledgeable and friendly

    2025-10-14

  • Comfortable and satisfied with this care provider

    2025-10-12

  • It was nothing less than A+ in receiving ALL aspects of medical treatment.

    2025-10-12

  • I was very pleased with both the nurse and doctor. They listened and explained things to me.

    2025-10-09

  • All providers were caring and professional

    2025-10-09

  • The doctor was very thorough and explained everything to me.

    2025-10-09

  • The doctor was well aware of my medical history and recommended a yearly follow up to insure that I am ready for a transplant should an organ become available.

    2025-10-06

  • Very thorough.

    2025-10-05

  • Very thorough, explained everything.

    2025-10-05

  • Dr. Bisaillon is an amazing Dr. He listen's to all I say, especially my concerns. He doesn't rush anything and explains things in a way that I can understand.

    2025-10-06

  • It was my first appt and I thought it went well.

    2025-10-02

  • Always a good experience at this office.

    2025-09-17

  • Everyone in the office is very nice and [redacted] and Dr B were thorough and very nice

    2025-09-14

  • Outstanding care from the Doctor as well as all of the staff

    2025-09-13

  • Answered all my questions. Great visit.

    2025-09-13

  • He always listens and explains thing very clearly

    2025-09-11

  • Dr Bisaillon has excellent knowledge and described the results of my tests in great detail.

    2025-09-11

  • Please increase the salaries of these individuals

    2025-09-11

  • Very thorough and addressed all my concerns!

    2025-09-10

  • Very professional

    2025-09-10

  • Dr Bisaillon is very helpful in explaining my condition and my options. He prescribed needed medication. He is easy to talk to and considerate of my needs.

    2025-09-10

  • The provider was courteous, knowledgeable, made me feel comfortable, answered all my questions, and it was all around a great experience.

    2025-09-11

  • He was very pleasant and I felt very comfortable in this office

    2025-09-07

  • knowledgeable and caring

    2025-09-03

  • great

    2025-09-04

  • It was my first visit with the doctor as a new patient. I was impressed with the facility, with the staff, and with my visit and the follow-up that he has booking some further tests for me.

    2025-09-06

  • I scheduled an appointment with Dr. Bissailon after a disappointing experience with a previous cardiologist who lacked bedside manner, rushed through the visit, and left me with more questions than answers. Dr. Bissailon was a refreshing contrast, he took the time to listen attentively to my concerns, thoughtfully explained potential causes of my elevated blood pressure, and ensured I felt informed throughout the consultation. I left the appointment feeling reassured and confident in the care I received.

    2025-09-04

  • It was a great appointment. First time I met the doctor, he was very thorough and listened to me very well and I really enjoyed him.

    2025-09-01

  • This is by far one of the calmest, efficient and friendliest medical offices I have been in.

    2025-08-30

  • My experience was positive in all aspects of my visit.

    2025-08-31

  • Everyone is so helpful and very courteous and professional.

    2025-08-27

  • I left the office feeling like nothing was accomplished and a waste of time.

    2025-08-27

  • The nurse and doctor were excellent. I felt that I was heard about my concerns and both were committed to helping discover the cause of my pain.

    2025-08-26

  • He is good listener and explaining. Respectful. Love the office is convenient- no city roads or traffic.

    2025-08-23

  • He's excellent. I lucked out.

    2025-08-05

  • Absolute gem! I told Dr. B. That this was the best physician appointment I've ever had. He was on time, was patient, listened with intention, and didn't try to influence me to go on medication (like a PCP would have) because he examined my whole history and explained his thought process in assessing my personal health-he didn't just say what textbooks say. Highly recommend!

    2025-08-08

Accepted Insurance

  • Blue Cross Blue Shield Medicare
  • Wellpoint
  • Senior Whole Health
  • Tufts Medicare Preferred
  • MassHealth
  • Cigna
  • Tufts Public Health Plan
  • Medicare
  • United Health Care
  • Medicare ACO
  • Coventry
  • Tufts Health Plan
  • Railroad Medicare
  • Fallon Health
  • Multiplan
  • Blue Cross Blue Shield
  • Harvard Pilgrim Health Care
  • Mass General Brigham Health Plan
  • Aetna
  • Commonwealth Care Alliance
  • Humana
  • TriCare
  • WellSense