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Marc Theroux, MD

4.9 out of 5 (419 Ratings)


Internal Medicine / Primary Care

About Marc Theroux

Dr. Theroux is board certified in internal medicine and is on the active medical staff of Charlton Memorial Hospital He serves on the diabetes advisory and continuing medical education committees at Charlton.

Dr. Theroux is a graduate of Georgetown University School of Medicine, and completed his residency in internal medicine at the United States Air Force Medical Center Keesler in Mississippi, which is affiliated with Tulane University School of Medicine.

He is a member of the Alpha Omega Alpha Medical Honor Society and the American Medical Association.


Marc practices at the following locations:

Southcoast Physicians Group Internal Medicine

534 Prospect Street
Fall River, MA 02720

P: 508-973-7766

Get Directions 41.7085319 -71.14524369999998

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 (97)

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.

  • We live in Florida and come here because of the quality of care in this practice

  • Very pleased

  • Seen in timely manner. Dr Theroux is always thorough & never makes me feel rushed. He reads thru test results with me so I understand them. We talk about all my concerns & health goals.

  • Everything was good

  • Hi Dr. Theroux office, Dr. Theroux and his staff are always professional and there friendly. They answer any questions that I have. Or any concerns that I have. I'm very comfortable. When I go there. I feel like I'm getting the best possible care, and the best possible advice that I could have.

  • Dr. Marc A Theroux is the bestI have been seeing him since he came into practice hereAnd my entire family has him as their GP

  • Dr. Theroux is the reason I love Southcoast so much. He's so compassionative n really cares for whats best for my overall health.

  • Always takes the time to listen and provide excellent care and recommend specialist when necessary.

  • Everything was perfect!!!!

  • Excellent

  • The staff at Dr. Theroux's office is outstanding and Dr.Theroux is the best doctor I've ever had the pleasure to work with.

  • This office is always responsive, professional and courteous. A great team

  • Appointment was on time, and entire staff were ver professional and caring.

  • My experience with Dr.Theroux went very well as always .I think something should be done about telephone calls to remind us of our appointments that come at 8 AM .Much too early. I do not appreciate being awakened from a sound sleep .

  • overall concern whenever I have questions about medical issues or problems. the staff is always attentive and caring.

  • Everything

  • Dr. Theroux is a wonderful doctor. The best doctor I've ever been to and he's just terrific all the time and my family and I all love him.

  • Felt very comfortable and Physician and nurses are excellent

  • Appointment was at end of the day. Staff was busy wrapping daily closures. Discharge was weird.

  • Dr Theroux and his staff are absolutely the BEST and that is why we travel 3 hours to our appointments and have been patients for 30 years. We love him like family.

  • I am having issues with my knee and legs showed the doc how I get up when on my knees he is sending me to a specialest added tick test to blood work seeing how I garden for my business when not at work. The nurse that took me into his office is kind and caring always has a nice thing to say and talks to me like I'm a friend not just a patient which I like it relaxes me Thank You

  • Dr. Theroux is the most knowledgeable caring doctor I have ever had.

  • Nothing to improve

  • an excellet physician

  • Dr. Theroux and his staff are very professional. They always take the time to listen to my worries and determine the best course of action. I am very pleased knowing that he is my doctor.

  • Dr. Theroux office is probably the best office anyway. They're efficient that friendly their informed. They know all about you. They have compassion. They are the best. Thank you.

  • Dr Theroux is the best doctor that I know of. I am always completely satisfied with him.

  • Dr. Theroux is the best doctor. In this state probably in the country. He listens he explains things in the way that you understand. He's patient. He's what he's a wonderful doctor.

  • Excellent

  • Dr Marc Theroux is truly a treasure A very good general practitioner

  • Dr. Theroux is an amazing doctor.

  • Dr Threoux is the best!!!

  • Dr. Theroux is the best doctor on the planet, and I am so grateful and blessed to have him as my primary care doctor. He always listens. He knows everything about my medi medical history and he spends as much time as he needs to to talk with you about what's going on with your medical health. So I could not recommend him highly enough to anyone. Thank you.

  • Dr. Theroux's office, all of his medical assistants who I come in contact to are all very compassionate, and attentive, and they know exactly what they're doing. Dr. Theroux listens intently and leaves no stone unturned. He is the best doctor I have ever come across, and I hope to be with him until the end. Thank you.

  • I've had Dr Theroux for 30 years and I've never had a problem with him he's wonderful caring and knowledgeable I wouldn't want anyone else

  • [Name] in Dr. Theroux's office is amazing. She always listens and pays attention to detail, and Dr. Theroux is the best doctor around. He's number 1 in the city of [Name] [Name]. Tod bad he doesn't work for another hospital. Have a good day. Bye bye.

  • Discussed with me the best person to solve my problem.

  • During the initial evaluation by the medical assistant. She spoke way too fast and looked only at the computer screen for the questions to ask me. With wearing masks it made it very difficult to hear and understand her. I felt she just rushed through what she was reading to ask me. So I'm not entirely sure I understood her or answered correctly

  • All necessary testing was arranged by this provider immediately. Very caring and accommodating.

  • Dr. Theroux always goes above and beyond for all (INAUDIBLE) He treats y parents, he treats my uncle, he knows my medical history inside and out. He's always seeking and (INAUDIBLE) results of all. He does everything in his power to make me feel better. He will even call me late at night when he not working but still is working. He just goes above and beyond always.

  • Dr. Theroux is the greatest doctor in the country. He is thorough, empathetic, knowledgeable. His medical assistant [Name] is also wonderful.

  • Doctor Theroux is the best. He saved my life, great man as well !

  • Dr.Theroux office whenever I have an appointment with him, he's extremely knowledgeable about my blood work. He goes right to my records on the screen explains in detail. Everything and as we go along I'm able to ask questions. He stops he listens to me and the only thing I can say he's excellent is an excellent. Excellent doctor. He really cares he really listens to you and I'm extremely extremely fortunate and lucky to have him and his assistant. [Name] is an exceptional nurse and his entire staff. They're wonderful. I rate the entire staff at 10 + and I thank you very much*

  • In my opinion,this office staff is on another level. I feel fortunate that I am being cared for by them.

  • This office always accommodates my busy work schedule.

  • Appointment was nearly on time . Office was distance and safety respective.

  • My visit went very well. Covid protocol was in place. Office staff friendly. I always enjoy seeing Dr Theroux. He's been my primary for years. No complaints. :)

  • Dr. Theroux always makes me feel comfortable during appointments. He is so attentive and personal, he knows my family history, asks about my life, etc. He always explains things clearly and takes the time to answer any questions I have. He's the best!

  • It's a pleasure going to Dr.T in that office.

  • Dr. Theroux has been my provider for many years. He is absolutely the best Doctor in the area. I'm fortunate to have him help to keep me healthy.

  • Dr. Theroux is always attentive and thorough. Excellent!

  • Always a very positive and comforting experience with Dr. Theroux

  • Dr. Theroux and his staff are wonderful! I can't say enough about how happy I am to be able to be cared for by them.

  • Dr. Theroux is a very caring Doctor

  • It was a great experience and I would do it again. Service was fantastic.

  • Dr Theroux has always been a kind , attentive and thorough physician. There is no room Improvement.

  • Dr. Marc Theroux is the best physician you could possibly have, he knows what your conditions are you can he talks with you because you time he's well informed. He's just the best and I told him. I pray that he stays healthy. Thank you.

  • Everything runs very smoothly. ????????

  • Went over my lab results and sugar numbers.

  • Doctor Theroux and [Name] know my needs and wants very well. All my questions are answered , anticipated and resolved as best as possible.

  • Dr Theroux is well prepared for every visit. He is kind, courteous and genuinely cares about his patients.

  • I have no problems with South coast ! And I love Dr Theroux and staff !!

  • Nothing lack of knowledge is nothing but make my anxiety worse. Living in the unknown

  • Always a pleasure to see Dr. Theroux!

  • I was unhappy with the amount of people that were sitting in the waiting room. Although we were spaced apart, I just thought that there were still too many people sitting in the waiting room at one time.

  • Appointments are always on time.Also the staff and Doctor Theroux are always a pleasure on my visits.

  • I have complete confidence in Dr. Theroux

  • perfect as is

  • Dr. Theroux's office is one of the most attentive and most caring offices I have ever dealt with in my entire life. He's also a wonderful physician and would highly recommend him to everyone that I know. Thank you.

  • Dr.Theroux consistently goes above and beyond to provide the best quality care possible for myself and my family. I am confident in his knowledge,skills and that he always has my interest in mind.

  • I was treated with respect and courtesy. My experience was excellent and there is nothing that would improve my experience because it was perfect.

  • My visit meet and exceeded my expectations. It was More Than Medicine.

  • All went as expected or above.

  • I have appointments every six months and every time I go all staff are very welcoming. Dr. Theroux is the best and his nurse [Name] is wonderful!

  • I am always pleased with my visits. Dr Theroux is caring, compassionate, and very thorough during my visits.

  • I trust Dr Marc Theroux with my health. I have been his patient for over 30+yrs. He is patient, compassionate, attentive, responsive to any questions & explains anything asked to ur satisfaction. I went in w concerns about my kidneys. We went over past labs & tests. We made a partnered plan of future labs & watching any further concerns I have. He always asks how I am mentally knowing I'm a cancer survivor in a covid world.

  • Should not have to wait a half hour past my appointment time to be seen.Need to have someone available at checkout to schedule follow up appointments. Health summary was not available because there was no one at check out to provide a copy of it. Not everyone is able to access my chart to obtain the info. Promises of callbacks with schedules just don't happen. I honestly don't know how elderly people are able to sustain their health. That said, Dr. Theroux is the best of the best!

  • Set next appointment before patient departs office.

  • Dr. Theroux is the best. He is caring and always there to help you.

  • No recommendations very efficient.

  • Everyone was courteous, knowledgeable, caring and extremely efficient. Dr. Theroux is the best.

  • Answered all of my concerns - did a thorough exam and did not rush - took as much time as I needed to feel comfortable.

  • 2 prescriptions was sent to pharmacy in early morning still haven't heard from cvs and it is 630 pm. This is likely a cvs problem. Not sure

  • On time

  • Great care given!

  • Dr Theroux deserves the best Dr ever award. He is truely amazing both medically and personally. He also has the most efficient office staff that I've been dealt with.

  • Dr. Theroux has been my provider for a number of years now and I have great confidence in him. He has always listened to me and given me advice and put me in contact with other doctors that I needed and what not. Back in 09 I was diagnosed with autoimmune hepatitis, and he transferred got me transfer it up to Brigham and Women's in Boston so I had the best help there for a liver specialist because we did not have one here in Fall River and he sent me there and I have great confidence with him, that he will take care of me all the time.

  • I wanted to hit 10!! Dr Teroux is terrific. & I love his office staff

  • Dr Theroux always takes the time to speak to me as if I was the only patient that he had. I feel very safe and am able to ask any question and know that he will take the time to answer it to my satisfaction. I couldn't ask for a more qualified and concerned physician.

  • From the moment I got there this afternoon the staff was welcoming and yet very careful about covid and I truly appreciated that Dr. Theroux is without a doubt the best doctor I've ever had. I have a complicated history and work with a number of specialist in [Name] And before I even before Dr. Theroux even sat down it was clear to me that he had already read all the notes from my rheumatologist up at the [Name] And so I had brought notes myself and didn't even have to use them because he knew all the latest information on my condition. He is simply a gift to me and other members of my family we are so*

  • Marc Theroux is a wonderful physician

  • always attentive and wonderful care.Fr. [Name] [Name]

  • Dr Theroux and staff are great and it was a pleasure to participate in this appointment

  • Dr. Theroux & his team always deliver perfect medical care. They all put the "care" back into healthcare. Everyone should have a physician like Dr. Theroux. Thrilled to see [Name] is back - thank God! [Name] is an outstanding professional & simply angelu00A0to all their patients.

  • I have always been extremely satisfied with this provider since the first visit they are approximately 20 years ago

  • Not a thing to improve

  • Couldn't ask for a better primary care physician - dr Theroux is the best! The staff is caring and listens to the patient

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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.