
Highlights
Age Groups Seen
- Adults
- Geriatrics
Languages
- English
Gender
FemaleLocations
- Massachusetts General Internal Medicine Associates
- 15 Parkman Street, Building 6, Boston, MA 02114
- Get Directions
- phone: 617-724-2700
- fax: 617-724-7799
Expertise
Education
- Fellowship: Massachusetts General Hospital, 1997
- Residency: Boston Medical Center (BMC), Medicine, 1995
- Medical Education: Brown University, 1991
Board Certifications
- Internal Medicine: American Board of Internal Medicine, 1994
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
- MassHealth ACO
- Medicaid ME
- Medicaid NH
- Medicaid RI
- Medicaid VT
- Medicare
- Multiplan
- Railroad Medicare
- TriCare
- Tufts Health Plan
- United Health Care
- Wellpoint
- WellSense
- WellSense NH
Ratings & Reviews
4.9 out of 5
103 ratings, 64 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 5/3/2026
Dr Mary is intelligent, compassionate and approachable.
- Reviewed on 4/29/2026
Dr Mary is the best Dr I have had over my life; [redacted]. Last year Dr Mary and her IMA team supported me through several major tests and office visits at many MGH offices. She and her IMA Team should be recognized for this extraordinary care. I would not be as healthy if not for Dr Mary and her IMA team which is as solid as she is. Thanks to them!
- Reviewed on 4/16/2026
Dr. Mary McNaughton Collins has been my PCP for many years. I trust her medical expertise 150%! She's thorough, covers all the bases and most importantly she does it by including my input and has the best bedside manner. In some ways after a visit I feel like I am "catching up with a friend"! She makes me feel comfortable and is always available, especially if anything arises unexpectedly. Dr. Mary explains everything in a way that I understand. I feel so blessed to have her as my PCP.
- Reviewed on 4/15/2026
As usual, the best times x more than 15 years.
- Reviewed on 4/10/2026
Dr Mary listens to my concerns and answers all questions
- Reviewed on 4/10/2026
I really appreciate Dr. McNaughton Collins' thoughtful preparation for our appointment. She does this consistently and on a regular basis. It's obvious that she's trying to stay within the time frame, so there's just, there's a feeling of rush that can sometimes make it hard. Thank you.
- Reviewed on 4/8/2026
Doc Mary is one of the best. Any of the less than perfect answers is more on me doing a better job of preparing the questions I have so that we can get through everything i'd like to cover in the hour that we have.
- Reviewed on 4/5/2026
Dr. Mary and her staff are phenomenal. My annual visit feels like I am coming home. The receptionist, [redacted], and the nurses/technicians are so wonderful. Dr. Mary is so knowledgeable, compassionate, caring and kind. She is always prepared for the visit. She has a plan but still listens to me and asks for my input. I leave feeling I was heard and she has my best interest at heart. I am so fortunate to have Dr. Mary as my doctor. In this fast-paced world, it is so amazing to have a doctor take the time to really listen and to show such compassion. It is obvious she loves her job, trusts and cares about her staff and does all she can to keep her patients happy and healthy! She is one of a kind.
- Reviewed on 4/1/2026
I've had Mary as my primary care physician for over 15 years and she is by far the best PCP I've ever had. In fact, I look forward to seeing her as much as I can because it is always a pleasant experience with her.
- Reviewed on 3/27/2026
I have an excellent experience. I have been with this provider for a long time and I have nothing more to say because everything is excellent with my doctor.
- Reviewed on 3/21/2026
The best of the best!
- Reviewed on 3/15/2026
Mary and her whole team are awesome!
- Reviewed on 3/13/2026
The provider always listen to what I have to say and I always feel more knowledgeable when I leave.
- Reviewed on 3/8/2026
Wonderful staff from receptionists to the nurses to doctors. I have had a 10 plus experience at Mass Gen during my cancer care as well as primary care. Kudos.
- Reviewed on 3/6/2026
Dr. Mary is very thorough and thoughtful and she takes the time to listen to me and I appreciate our time together during our visit.
- Reviewed on 2/25/2026
I love my doctor! She is so knowledgeable and so thorough with her review of your health issues. I feel very lucky to have her.
- Reviewed on 2/25/2026
I am very upset with MGH that they closed the cafeteria in the Wang Building!!!
- Reviewed on 2/25/2026
Dr Mary was very informative and answered all my questions so that I understood the information
- Reviewed on 2/18/2026
Dr Mary, is simply the best! She is the most amazing doctor I have ever met. She truly cares for her patients & their caregivers. THANK YOU
- Reviewed on 2/16/2026
Dr Mcnaughton is smart caring empathetic and very meticulous in her work She is terrific and I always appreciate her and her support
- Reviewed on 2/14/2026
Once again, Dr McNaughton Collins exhibited her professionalism, compassion and extraordinary patient care. Dr McNaughton Collins is the primary reason that we have our family as patients at Internal Medical Associates. We cannot thank Dr McNaughton Collins enough for her exceptional care and concern.
- Reviewed on 2/1/2026
Doctor was very thorough and compassionate! She was very patient and listened to my concerns!
- Reviewed on 1/30/2026
My husband and I had appts. but arrived a little late so there was a little bit of a rush and questions that still needed to be answered. Dr. Mary recognized there were concerns we had and as a kind, dedicated and concerned person she is, called the next day and spoke to us and got all concerns answered. How many doctors do that today? We love Dr. Mary.
- Reviewed on 1/29/2026
Mary is the best!
- Reviewed on 1/29/2026
Excellent preparation, attention to detail, very caring manner
- Reviewed on 1/25/2026
Doctor McNaughton Collins is wonderful.
- Reviewed on 1/27/2026
Dr. McNaughton-Collins is the absolute best. I don't think I've ever had a better doctor in my life, and I've had lots of great doctors
- Reviewed on 1/21/2026
Dr Mary is the best! Most compassionate patient understanding provider
- Reviewed on 1/21/2026
I really like Dr. Mary. I've been seeing her for years. I think she's one of the best physicians I've ever had. Highly recommended. She's incredible.
- Reviewed on 1/14/2026
Thank You to Dr. Mary. A kind listener with knowledge and background on my family as well as me. My husband and I are always grateful for expertise. We are blessed.
- Reviewed on 1/6/2026
My experience was perfect, as usual.
- Reviewed on 1/4/2026
Dr. Mary McNaughton Collins has been my doctor for many years. She is the greatest thank you. [redacted]
- Reviewed on 12/24/2025
Dr. Mary and her entire staff were awesome.
- Reviewed on 12/16/2025
Yeah, my PCP is outstanding as usual, answered all my questions, very smart and helpful.
- Reviewed on 12/12/2025
Dr Collins is superb in every way
- Reviewed on 12/7/2025
As always I was seen immediately. [redacted] I have had the privilege of having Mary as my doctor for decades-trust her with my life!!
- Reviewed on 11/26/2025
Dr Mary and her entire team are models for superior primary care. Always available and responsive, keeps up with ALL of my multiple conditions and specialists, and helps make an overloaded profession work for us as well a seemingly possible.
- Reviewed on 11/26/2025
She is very caring and professional.
- Reviewed on 11/24/2025
I went into this appointment very anxious about several health issues and Dr. Mary treated me with respect professionalism and no question was too silly for her to answer. She made me feel well cared after and took some of the worry I have had away which is a big deal to me
- Reviewed on 11/12/2025
Dr. McNaughton-Collins is in every way wonderful! She is an exceptional physician and human being.
- Reviewed on 11/3/2025
Top notch!!!
- Reviewed on 11/6/2025
Love, love, love her as my PCP. She is very a very caring, sincere and honest physician. Have had her for many years and is always there to advise if I need her help.
- Reviewed on 10/30/2025
Dr Mary McNaughton Collins is awesome.
- Reviewed on 10/29/2025
Dr. Mary is an amazing doctor! I can't tell you how much it means to have been under her care for the last almost 30 years! She consistently shows kindness and expertise and follows up on all my issues thoroughly. I would be lost without her!!
- Reviewed on 10/22/2025
Dr. McNaughton-Collins treats me with respect, honesty, and concern. She makes it part of her visit to check on issues that are challenging for me as well as to listen and answer my questions (of which I always have many). She addresses all my concerns and makes me feel very comfortable with her advice and recommendations. She has referred me to specialists, when needed, who are also very good. It's great to have a pcp who is so authentic, compassionate , and caring.
- Reviewed on 10/16/2025
Dr. McNaughton Collins is well prepared, thoughtful and a fantastic PCP
- Reviewed on 10/15/2025
Dr Mcnaughton Collins is the most emphatic and caring PCP. I count myself fortunate to have her on my MD team.
- Reviewed on 10/8/2025
My provider is always attentive and caring. She attends to my needs whenever I require assistance. Very knowledgeable and professional.
- Reviewed on 10/5/2025
My experience with Dr. McNaughton Collins was exceptional. She was kind, respectful, extremely knowledgeable and showed concern about my every need.
- Reviewed on 9/24/2025
Love this doctor!!!!
- Reviewed on 9/23/2025
There is very limited time to spend with provider. It would be helpful if she allowed time to Listen to her patient. Hard to get a word in edgewise as she talks while rushing
- Reviewed on 9/29/2025
Mary cares about me as a person.
- Reviewed on 9/18/2025
There is nobody better than Dr. Mary. Extremely thorough & well prepared. She is a doctor who really cares about her patients. You are very fortunate to have her working at MGH
- Reviewed on 9/4/2025
Great experience
- Reviewed on 8/26/2025
Dr. Mary McNaughton Collins is the best!! She is very intelligent and I am honored to be her patient !
- Reviewed on 8/24/2025
We discussed all my health issues and had an opportunity to gather a lot of information. It was a good visit.
- Reviewed on 8/27/2025
She is a thorough, comprehensive, excellent bed-side manner provider. I just wish we could clone her. We need more PCPs like her.
- Reviewed on 8/10/2025
Outstanding!
- Reviewed on 7/31/2025
Dr. Mary is not only thoughtful, thorough, and knowledgeable, but she is also incredibly kind and a good listener. I feel very fortunate to have her looking out for me.
- Reviewed on 7/25/2025
My doctor, who I've had now for 25 years, is the best doctor I've had in my life, and I am [redacted] years old. She is caring, compassionate. She makes me feel comfortable and cared about. She is highly professional, highly knowledgeable, and She is on top of all my issues. She's an excellent communicator. And I feel very fortunate to have her as my doctor in the past, the present, and going into the future.
- Reviewed on 7/20/2025
Dr Mcnaughton Collins has been my PCP for many years and has been unbearably terrific as she has seen me through several medical crises. Just knowing she is my doctor is very reassuring to me
- Reviewed on 7/4/2025
Dr. Mary Mcnaughton Collins is an amazing Dr. Mary saved my life in [redacted] when she diagnosed a melanoma tumor in my abdomen and subsequent Stage 4 metastatic melanoma that I was treated for at MGH. She is always focused on me when I see her and has assisted me greatly recently in getting my BP down to a great level as well as any other issues I have had. She has an excellent bed side manner and always follows up with me very quickly when I reach out to her for information or guidance. I cannot begin to describe how much she has helped me in living a longer healthier life. She is absolutely the best!
- Reviewed on 7/2/2025
Excellent care
- Reviewed on 6/11/2025
Dr Mary is down to earth and listens to questions and what next steps should be taken.