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Mark Desnoyers, MD

4.8 out of 5 (490 Ratings)



About Mark Desnoyers

Dr. Desnoyers came to the Southcoast region in 1989 to establish the first community hospital catheterization laboratory (“cath lab”) in Massachusetts. He has served as the director of St. Luke’s cath lab since its opening in 1991.

Dr. Desnoyers graduated as Valedictorian of his class from Dartmouth College before heading to Harvard Medical School to earn his medical degree. He completed an internship, residency, and fellowship in cardiology at New England Medical Center Hospital in Boston, where he also performed his cardiology fellowship and ultimately became a faculty member and associate director of the adult cardiac cath lab.

Dr. Desnoyers is board certified in internal medicine with a subspecialty board certification in cardiovascular disease.


Mark practices at the following locations:

Southcoast Physicians Group Cardiology

49 State Road Pequot Building, Suite 104
Dartmouth, MA 02747

P: 508-973-6650

Get Directions 41.6358677 -70.9663285

Insurances Accepted

Southcoast accepts most major insurance plans. Call the Southcoast patient registration department at 844-297-2952 or your health plan with any questions regarding coverage.

Provider Ratings

Rating Willingness to recommend provider’s office Overall Provider Experience Courtesy and Respect of Staff

Patient Comments (75)

At Southcoast Health, we strive to deliver exceptional patient care along with an exceptional patient experience. We appreciate all of your feedback and share your comments to recognize the wonderful care our teams provide to you as well as identify areas for improvement.

  • Hi, I was very impressed with the doctor's willingness to listen to my concerns and act appropriately and make modifications on my medicine that he determined after taken proper physical testing with an EKG. I guess it was, but I'm very happy with my services. Thank you.

  • I'm always able to express my concerns and ask question and they are always answered. Very well treated.

  • The secretary was very helpful and understanding.

  • Appointment was on time. The medical assistant was friendly yet professional.

  • Everything went great

  • Saw Dr. Promptly, no wait. Waiting room well set up, clean and socially distanced patient waiting. Got advise I was looking for. Double checked to ensure nothing wrong and everything being well managed.

  • Right on time and and new young lady( new to me) taking vitals before Dr. came was very pleasant. Dr Desnoyers always listens and never rushes.

  • Kept me alive

  • Everything was fine, I don't have complaints.

  • My sister in law took my mother to have her pacemaker checked and they had to wait for an hour and a half in the waiting room. They were finally went to the window and ask what happened. Apparently they were forgotten. So I just wanted to bring that to the attention. We've always had very good experiences at Dr. Desnoyers' office, but this particular thing was for her pacemaker check and it was not acceptable to be forgotten.

  • The support staff and the Dr treated us in a respectful & efficient manner. Our concerns were addressed as the Dr listened intently to our ideas.

  • This provider always listens, asks relevant questions and gives understandable feedback and let's me.know the plan based on rest results.

  • Very professional and courteous staff. I don't believe any improvement is required.

  • Less wait time

  • Appointment was on time. Questions were answered.

  • Very happy that they fit me in for an appointment. A little disappointed that I had to wait over 20-25 minutes to be seen.

  • It was my first time there but was made to feel very comfortable

  • Dr Desnoyer is always knowledgable about my health issues.

  • Too many people in waiting room during covid. All seats filled to capacity. Even more people coming in and out of offices.Had a 93 old patient with me who had to sit completely at opposite side of the office with all other patients waiting for the doctor instead of pace fresh air and no cleaning being done.

  • It is always a pleasure to go there the staff is great and Doctor Desnoyers is a wonderful Dr.

  • I will not see any other Cardiologist other than Dr. Desnoyer. He is very professional and explains everything in great detail. My cardiac health has improved while under the care and direction of Dr. Denoyer. As a patient, I couldn't ask for more than that. Thank you and best regards, [Name] [Name] [Name]..

  • Very professional office staff and the doctor was very in tune to what I had to say. Highly recommend this office

  • Dr. Desnoyers is an outstanding physician. The office is efficient and professional.

  • Dr. Desnoyers is very professional and seems on top of my care

  • The entire staff is great, great attitudes and always helpful. ..the office staff, the lab girls, the nurses and Dr Desnoyers is the best. Very intelligent, never makes you feel he's in a rush, answers all questions asked. At 74 years old I can say this is the best of the best. I am so thankful I switched to dr Desnoyers 11 years ago. Not a moment of regret. Five star facility!

  • The Dr and staff are always professional, courteous and pleasant. And they laugh at my jokes and let me yap for a few minutes about nothing so that tells you they are also very kind people.

  • They are always kind and friendly.They have a great crew that seems like they are a work family.God bless them all. Stay safe all of you.

  • My appointment went ok

  • Great staff! Friendly and able to come and go with no hesitations.

  • All went fine.

  • The staff is very personable.Dr. Desnoyers is an excellent provider!I have absolute confidence in him.

  • All very well.

  • It was my first appointment with this doctor. He and his staff were extremely welcoming and kind.

  • Treated veyy well.

  • Was a good experience... Arrived on time...was called within minutes where my vitals were taken and meds were updated ( I had taken in a list of my meds) ..then was seen by physician within minutes who had reviewed my chart and asked questions about my previous concerns..I had list of my concerns in hand....then exam, EKG, instructions ,Flu vaccine, was back in my car in 30 minutes what else could I ask for...

  • Dr. Desnoyer is very competent and thorough.

  • Through and professional.Asked questions and listened to me. Had positive response to my health goals and concerns.

  • No issues at all

  • Everyone is always very pleasant, caring and professional.

  • On time, very efficient And courteous

  • The office is always very welcoming. They do things on time. The phlebotomist are very nice. They do the best they can with my father's blood because he has a very hard time getting blood taken from him and they're always so sweet about it, and they actually can get it very good and Dr. Desnoyers and just his whole staff are awesome. And he is a great doctor and my father likes to joke around, they joke around with him. I honestly don't think I could *

  • I always have a positive experience during my visits. I come away with a feeling of calm and reassurance about my health.

  • For me, all the services were good for me, thanks.

  • Office is always well run, Dr. Destroyers is always wonderful.

  • As always, caring, efficient.

  • I received great explanations and advice, my questions were answered well, and the process was very efficient.

  • always professional,caring, responsive

  • registration, nurses, radiologist, and doctor were great!

  • Everyone is always prompt, courteous, efficient, & caring.

  • Everyone in the office was very kind , patient and informative.

  • Dr. Desnoyers and his staff are always wonderful to work with

  • First time at the office, and everyone was friendly and kind and warm. They took me right on time. I feel comfortable going there.

  • You do everything well, and wouldn't change a thing. Sorry, I don't have any criticisms for the practice.

  • NO Improvement Needed It is a Pleasure to go to this Office I feel much better Talking with the Doctor and His wonderful Staff

  • Dr drsnoyers is the best..I always understand what he is saying n for some reason I dont he will explain it all over again..i think he is number one to me n a few others that i know of..


  • Only dr appointment that I go too that the dr listens to what I have to say , and explains my meds and why I need to take them , all staff is very nice

  • Process for getting in contact with the office upon arrival needs improvement. I called the designated phone number, as instructed, upon arrival, and never received a response, so after 3.5 minutes I rang the doorbell and someone came to the door immediately. Patients should just be instructed to ring the doorbell, not wait in an endless call loop on hold.

  • Dr. Desnoyer was very friendly. He spoke so that I could understand him. Not in medical jargon. His staff is very friendly as well. It was my first time seeing this provider and it was a very pleasant experience.

  • this was a telephone visit - it went well -

  • I'm grateful for the service that I received and I'm just thankful that my physician was able to serve me with the best possible physician and he was patient and I just thank God that everyone in the office besides my physician was able to provide me with quality, and tender and compassionate service, thank you.

  • Hi, my name is [Name] [Name] I had a visit today with Dr. Desnoyers. The nurse practitioner [Name] was wonderful. She made me feel very at ease and nice conversation, and I hope that you guys see what a great worker you have. Thank you.

  • Nothing love my doctor

  • Because of the virus entering the medical building was very different, but think it was handled in an admirable way When life gets back to normal I will be able to answer this question

  • The nurse was pleasant kind and attentive, Dr. Desnoyer is always helpful,informative, and concerned about his patients

  • Treated me very well all were very nice

  • It is wonderful to have such a great resourse in dartmouth

  • All good

  • The performance of the medical staff was very professional. I have no complaints. I don't think their performance can be improved.

  • My experience with Dr. Desnoyers and the medical team was excellent. Everyone was cordial and professional. All my medical concerns were addressed immediately and l left the office feeling l was in very competent hands.

  • I always get enough information when I am at the office or on a telephone call everyone is always helpful

  • Everything was perfect.

  • The entire visit went smoothly. We socially distancd as muh as possible. A of my questions were answered, I was called with my follow up appointment the very next day

  • Everyone was great. My first time there for a follow up. No improvement needed that I saw.

  • All went well no complaints to offer. Thank you

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Southcoast Health physician profiles now feature star ratings.  Below, you’ll find frequently asked questions about our process for calculating the ratings.

Why does Southcoast publish survey ratings online?
Southcoast is dedicated to providing patients and consumers with helpful information about the quality of our patients’ experiences. Star ratings published on our physician biography pages are based on actual responses from patients of that particular physician to patient satisfaction surveys that are distributed and processed by a national patient satisfaction survey vendor.

Who receives the survey?
Our vendor sends surveys via SMS or email to all patients seen in our outpatient physician practices who have a valid smart phone number or email address on file with Southcoast Health. Surveys are sent to patients within a few days of their appointment.

How is the Patient Satisfaction Star Rating Calculated?
Star ratings are calculated using an average of all survey responses to each of three questions: Courtesy and Respect of Staff, Provider Overall Rating, and  Willingness to Recommend Provider’s Office.  The star rating displayed on our physicians’ main biography page represents the average of the three measures for that particular physician.