Highlights
Age Groups Seen
- Adults
- Geriatrics
Languages
- English
Gender
MaleLocations
- Massachusetts General Transgender Health Program
- 50 Staniford Street, Suite 801, Boston, MA 02114
- Get Directions
- phone: 617-643-7210
- fax: 617-724-7126
- Massachusetts General Primary Care Clinic at Bulfinch Medical Group
- 50 Staniford Street, Floor 9, Boston, MA 02114
- Get Directions
- phone: 617-724-6610
- fax: 617-724-0802
Expertise
Education
- Residency: Mount Auburn Hospital, Internal Medicine, 2019
- Medical Education: Florida State University College of Medicine, Medical Degree, 2016
Board Certifications
- Internal Medicine: American Board of Internal Medicine, 2019
Insurance
- Aetna
- Beech Street
- Blue Cross Blue Shield
- Blue Cross Blue Shield Medicare
- Carelon Behavioral Health
- Cigna
- Commonwealth Care Alliance
- Coventry
- Fallon Health
- Harvard Pilgrim Health Care
- Humana
- Maine Community Health Options
- Mass General Brigham Health Plan
- MassHealth
- MassHealth ACO
- Medicare
- Medicare ACO
- Multiplan
- Railroad Medicare
- Senior Whole Health
- TriCare
- Tufts Health Plan
- United Health Care
- Wellpoint
- WellSense
Ratings & Reviews
4.9 out of 5
247 ratings, 116 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 2/27/2026
This is the first meeting I had with Dr. Wass, who had been assigned to me as a primary care physician. So he and I had never met before this office visit. He treated me for a dermatology type issue on my skin. He really had no history or background of me, but as a new, since it was our first meeting, I wasn't expecting him to know all of my history. But he was very good and very thorough and he came to a solution and offered me a prescription to take care of my problem and I was very grateful for that.
- Reviewed on 2/25/2026
He paid very attention to your concern
- Reviewed on 2/26/2026
Everything went as expected. It was a complete visit. I especially appreciated doing a memory test as that had been one of the concerns that I had. So no complaints. Well done. Thank you.
- Reviewed on 2/22/2026
He's always been attentive.
- Reviewed on 2/25/2026
Since I became his patient, Dr. Wass has consistently shown admirable preparation when I meet with him, reviews my fairly wide-ranging medical issues, makes referrals that have always proved valuable, and has on his own prescribed Ozempic for me for 15 months now, which has lowered my A1C, and helped me lose weight, which leveled off at an appropriate weight over six months ago. Dr. Wass has spoken to me at every visit about whether or not to continue the Ozempic at its current dosage level.
- Reviewed on 2/19/2026
Dr. Wass is very kind and helpful and is a good listener.
- Reviewed on 2/19/2026
He is attentive, helpful, individualizes, knowledgeable
- Reviewed on 2/15/2026
Dr Wass is professional and calm and knowledgeable and I appreciate his service and care . Always listening and being open to my preferences about my health care. Not judgmental and I trust him very much
- Reviewed on 2/15/2026
[redacted] I was surprised about the basic questions he asked without really delving into my medical history or personal history . Very "sterile " in bedside conversation and again his approach . [redacted]
- Reviewed on 2/6/2026
Yes, this was my first visit with this provider who is my new primary care doctor. It was a virtual visit following up on a hospitalization. My responses reflect the limited nature of our interaction.
- Reviewed on 2/5/2026
All went well and several referrals moving forward.
- Reviewed on 1/27/2026
Dr. Wass has been my primary care for three years. I have the utmost confidence in his abilities and feel fortunate to have him as my doctor.
- Reviewed on 1/25/2026
Highly professional and conscientious
- Reviewed on 1/23/2026
He is an excellent doctor. Goodbye.
- Reviewed on 1/21/2026
The doctor and nurses were excellent!
- Reviewed on 2/3/2026
I have had nothing but excellent visits with Nathan [redacted]. Attentive, clear and detailed in explanations, thoughtful and consultive in outlining plan of care.
- Reviewed on 1/15/2026
Always attentive and thorough with follow up if needed.
- Reviewed on 1/14/2026
Everything was perfect.
- Reviewed on 1/9/2026
Dr Nathan was excellent
- Reviewed on 1/7/2026
went fine
- Reviewed on 1/7/2026
Dr Wass was extremely attentive and addressed all my needs...we,re very fortunate to have him. Sincerely, [redacted]
- Reviewed on 1/8/2026
I have never been treated more with more care than I have with Dr. Wass and his team.
- Reviewed on 1/5/2026
Dr Wass is extremely thorough. He takes the time with you to make sure all issues Issues aren't covered. He also communicates with my other doctors so everyone is on the same Page.
- Reviewed on 1/5/2026
My visit with Dr Nathan Wass was my first visit with him as my previously provider has left MGH for private practice. Dr Wass was professional, kind, patient, thorough, solicitous, supportive, and seemed genuinely concerned and interested in my views regarding my medical game-plan about my history of more than two decades with the Bulfinch Group . I was very pleased with Dr Wass and, as usual, with my visit to Bulfinch.
- Reviewed on 1/1/2026
Thank you for his great care and thoughtfulness.
- Reviewed on 12/22/2025
Very pleasant personality, seems to be very competent and interested in patients' health in detail and gives lots of confidence.
- Reviewed on 12/20/2025
I am definitely happy to be a patient of Dr. N. Wass. I am [redacted] yrs old but Dr. Wass and the team never talk "down" to me.
- Reviewed on 12/20/2025
He is friendly, knowledgeable, smart, detail-oriented.
- Reviewed on 12/17/2025
He is great experience with Dr . Wass he take time to explain to me all my concern
- Reviewed on 12/12/2025
I felt that the provider listened to me and was very supportive
- Reviewed on 12/11/2025
I believe that Dr Wass is awesome, he care about you and listen carefully to what you have to say. I wish all care providers were him.
- Reviewed on 12/11/2025
Dr. Nathan Wass is is very Professional; Attentive to Patient concerns; and kind. He explains things in Layman's language; answers all questions with care; and explores options with his patients. I feel very fortunate to have Dr. Wass as my Primary Physician
- Reviewed on 12/9/2025
Dr Wass is terrific. Great listener and asks the right questions. Easy to talk with. Very happy with him as my doctor.
- Reviewed on 12/7/2025
Outstanding doctor. Excellent listener to all my questions. Patient. Knowledgeable. Informative, gracious. Caring.
- Reviewed on 12/7/2025
Dr Wass and his practice team are terrific. They take an appropriate amount of time to digest my health matters, and provide useful feedback and guidance. I am delighted with my care at Bullfinch under Dr Wass.
- Reviewed on 12/1/2025
So informed about my history, did not rush me and listened carefully
- Reviewed on 12/1/2025
It was a very pleasant experience
- Reviewed on 11/28/2025
Very polite & respectful as well as knowledgeable.
- Reviewed on 11/27/2025
First time with Dr. Wass which was most successful. He was fully acquainted with my medical history, listened to my questions, made good recommendations. I look forward to his care in the future.
- Reviewed on 11/26/2025
Dr. Wass is one of the most CARING Doctors I have ever had. I am so happy he came into my life at Bullfinch Group.
- Reviewed on 11/21/2025
Dr. Wass was a combination of competence and friendliness, what I've come to take for granted in the 50 years MGH has been my healthcare provider. Thank you very much.
- Reviewed on 11/20/2025
Do you listen carefully to what I had to say and was very helpful in answering my questions
- Reviewed on 11/19/2025
[redacted] we have had two phone appointments. Each visit presented quality and quantity time. Dr. Wass is excellent. (I am homebound.)
- Reviewed on 11/17/2025
He is smart and attentive. I felt heard and respected.
- Reviewed on 11/17/2025
Attentive and caring. A great Doctor.
- Reviewed on 11/16/2025
Was is doing a great job. Glad to be under his care
- Reviewed on 11/16/2025
My provider exceeded expectations. He provided all information and questions with care and compassion.
- Reviewed on 11/12/2025
Dr. Waas is warm and professional and thorough. We covered all of my health concerns during my annual physical.
- Reviewed on 11/10/2025
I have full confidence in all the doctors and staff at the Bulfinch group.
- Reviewed on 11/9/2025
Dr. Wass is a terrific asset to MGH and the Bulfinch Medical Group. After a stretch of being without a PCP when my previous doctor I left, I hope the hospital and practice supports the vital role PCPs have in our lives. While I greatly respect and am appreciative of my MGH specialists, equal respect and support must be given to physicians like Dr. Wass.
- Reviewed on 11/8/2025
Dr. Was is exceptional. He is thorough, a good listener and follows up quickly.
- Reviewed on 11/10/2025
Dr Wass has very good listen g skills and asks the right questions in a comforting way. He is always prompt, efficient and courteous
- Reviewed on 11/5/2025
Dr. Wass had read my pre-exam questionnaire and focused on the issues I had raised. He was thorough and professional
- Reviewed on 10/31/2025
Dr. Wass is immensely competent, which is what I most want from a doctor. But he adds to that a really good bedside manner. He's a good listener. He's a very clear communicator. I'm very appreciative.
- Reviewed on 10/30/2025
The Dr. was very knowledgeable and personable and addressed my concerns.
- Reviewed on 10/20/2025
This was my first meeting with Dr. Wass. I found him to be caring, inquisitive, focused on my care and thorough. I was most impressed.
- Reviewed on 10/15/2025
Dr Wass is an excellent physician! He responds with both concern, when needed and thoughtful referrals when necessary. He is very thorough and will investigate all possibilities concerning my care. He is one of MGHB's BEST! Very lucky to have him at the helm of my providers!
- Reviewed on 10/13/2025
Doc was good. [redacted]
- Reviewed on 10/15/2025
He was very thorough and definitely was interested in helping me the best he could. It was a great experience.
- Reviewed on 10/15/2025
Thank you, Dr. Wass for your Excellent Assistance and for your Follow up Comments and Advice.
- Reviewed on 10/8/2025
I saw this provider when my regularly assigned provider was not available. This provider was excellent! He listened carefully, examined my injury, and sent me for X-Rays. He also wrote a prescription for physical therapy. What I appreciated the most was the interest this provider showed in my entire medical care. He allowed me to ask questions and never rushed the appointment.
- Reviewed on 10/7/2025
This doctor is fantastic. Great timely follow up. I am very pleased with my care.
- Reviewed on 10/1/2025
Dr. Waas was wonderful, listened to all my needs, and I was very lucky and grateful that he was able to see me on such short notice and a wonderful provider. I will recommend him to friends and family in the future. Have a wonderful day.
- Reviewed on 9/28/2025
Dr. Wass is a gem!
- Reviewed on 9/24/2025
I have only had Dr Wass for about a year (my previous provider left this practice) and he's been totally supportive and helpful.
- Reviewed on 9/21/2025
Dr Wass was very listened carefully to what I had to say and made suggestions on how to cope with my problem. He was pleasant very knowledgeable He answered all my questions in a clear way.
- Reviewed on 9/22/2025
Dr Wass has been outstanding as my new PCP. I've been part of the Bullfinch Group for many decades and have always felt the quality of my doctors has been excellent. Dr Wass has been very patient, accessible and responsive for all my needs. He is a very good listener and explains details for my care very clearly.
- Reviewed on 9/20/2025
very thourough
- Reviewed on 9/19/2025
Dr. Wass is one of the best doctors I've ever had. I really think he's really good and I wouldn't change doctors for nothing.
- Reviewed on 9/17/2025
Excellent visit experience. Provider took the necessary time with me to go over everything in detail.
- Reviewed on 9/18/2025
I requested an appointment with Dr Wass for a pre operation clearances. Dr Wass followed up by asking if there was anything else I wanted to discuss. There was and the advice he gave me has been very helpful
- Reviewed on 9/16/2025
The best you could expect
- Reviewed on 9/15/2025
Always a satisfying and supportive visit.
- Reviewed on 9/14/2025
Dr Wass is very thorough and a great listener! He hears and responds to all my concerns!!
- Reviewed on 9/3/2025
This doctor is amazing. This was a wonderful experience for me. I hope to see him again.
- Reviewed on 9/7/2025
Very easy to communicate with I felt he was really concerned with all my results and his direction as to future follow-up and importance of some shots I should consider
- Reviewed on 9/6/2025
Dr. Wass was a replacement for Dr. [redacted] and I was very happy and feel lucky to have gotten him as the new doctor.
- Reviewed on 8/31/2025
I was very pleased that I was able to get a same-day appointment regarding my urgent need for treatment. Dr Wass was very helpful in treating my condition.
- Reviewed on 8/18/2025
Most professional and helpful
- Reviewed on 8/14/2025
Dr. Wass is an excellent doctor, one that it should very much valued in the office. He is knowledgeable, good listener, very helpful with the advise. Also he put patient "on ease" to discuss any issues one's have. I truly respect him as a doctor and as a person. Lucky to have him as my PCP.
- Reviewed on 8/6/2025
It was my first time to see this provider, he listen very carefully what you have to said and he explain very clearly
- Reviewed on 8/6/2025
Yes, Dr. Wass, I have become very respectful of and appreciative of. In the initial one or two visits, I was skeptical. I feel like he's gained confidence and I have gained confidence in him in the relationship as well. I find him extremely sensitive and concerned and caring. It comes through in his personality, it's in his nature. I'm happy to have him and glad to have him. in taking care of my health issues.
- Reviewed on 8/3/2025
Dr. Wass is a great listener and is very thorough.
- Reviewed on 8/3/2025
Dr Wass was very thorough and professional
- Reviewed on 7/29/2025
First visit with Dr Wass, he was thorough and listened to what I had to say
- Reviewed on 7/30/2025
Dr Wass was very professional and personable.
- Reviewed on 7/27/2025
I was very please, and they answer all my questions I had,
- Reviewed on 7/16/2025
Very welcoming staff and very knowledgeable.
- Reviewed on 7/14/2025
Good response from picture and message sent via mass general website
- Reviewed on 7/14/2025
Dr. Nathan Wass was thoughtful and a clear communicator. Excellent experience.
- Reviewed on 7/13/2025
Dr. Wass is great. He is a good listener. He explains possible reasons for symptoms, sometimes including references to current research which I appreciate. I never feel foolish asking him questions or by the way he answers them. Nor do I feel rushed. He is thorough in his exams and visits whether in person or by Zoom. I truly feel lucky to have my care referred to him by Dr. [redacted], he's special.
- Reviewed on 7/9/2025
Only four days out from appt (including weekend) and I have Already had follow up phone calls to set up follow up appointments and items discussed. Dr.Wass is very thorough.
- Reviewed on 7/2/2025
First visit for me with Dr Wass. Everything went as I thought it would as all my doctors and nurses at the hospital have been excellent and that has been for the past fifty years.
- Reviewed on 7/2/2025
First in person meeting with the doctor. Very positive experience .
- Reviewed on 7/3/2025
This was a first appointment. He was nice and did a good job.
- Reviewed on 7/2/2025
said he would send me the exercises to deal with my sore shoulder. Haven't gotten them.
- Reviewed on 7/1/2025
This is the first time I met this provider and he was knowledgeable about my history and excellent all around
- Reviewed on 6/30/2025
Thorough prepared explained everything well considerate of needs
- Reviewed on 6/29/2025
Dr Wass did a great job
- Reviewed on 6/14/2025
Great overall experience. Dr. Wass is a wonderful physician.
- Reviewed on 6/10/2025
This was my first visit with Dr. Nate Wass. It was very professional; informative; and Dr. WASS was fantastic. He is friendly ; listens to everything I had to say; and did research my medical History before my appointment. He is also very thorough in checking any areas and issues. I feel very fortunate to have Dr. Wass as my new Primary Physician.
- Reviewed on 6/9/2025
My provider, Dr Wass, is a 10/10 in every respect. I feel the same way about his care team. Dr Wass is thorough, timely, and detail oriented, in every instance. Can't say enough good things about him and this practice.
- Reviewed on 6/9/2025
Took time and care to attend my unexpected needs and recommended correct actions by me
- Reviewed on 6/5/2025
I can't imagine a better doctor in my life than Nathan Wass.
- Reviewed on 5/29/2025
Dr. Wass was extremely knowledgeable about the condition and his guess was correct. He reassured me as to how to proceed going forward.
- Reviewed on 5/29/2025
Nathan was wonderful when I saw him. He got me started with genetic testing and got some cream for a rash that I got from my dog and he's a wonderful person and very knowledgeable doctor.
- Reviewed on 5/25/2025
I always get treated well when I visit
- Reviewed on 5/30/2025
Doctor Wass was very helpful! Thank you.
- Reviewed on 5/20/2025
Very attentive and great follow up
- Reviewed on 5/13/2025
Dr. Wass listens, is thoughtful and cares
- Reviewed on 5/14/2025
fine group of professionals across the board. feel lucky to have had them help me.
- Reviewed on 5/14/2025
Great Dr, he listens well , explains things well and appears to genuinely care .
- Reviewed on 5/9/2025
This was my first visit with Dr. Wass. Previously I had seen Dr. [redacted] for many years. Change in life is always challenging but my visit this week with Dr. Wass was excellent. I was amazed at knowledge of my years with Dr. [redacted], my medical conditions/medications and my local nurse practitioner here in [redacted] New Hampshire. During my visit with Dr. Wass we discussed my blood pressure in great detail and came up with changes with my BP medications that hopefully will get it down to lower numbers.
- Reviewed on 5/2/2025
This was my first visit with Dr. Wass, in the last 30 plus years my doctor was Dr. [redacted] He was the gold standard, so it's hard to compare anybody to Dr. [redacted] but my first experience with Dr. Wass was very good. I look forward to my future care with him. Thank you.
- Reviewed on 5/2/2025
Great care
- Reviewed on 5/2/2025
Is an excellent care provider.