Mark A Preston, MD, MPH

Patient Feedback

4.903876 average rating from 387 reviews

• Yeah, it was fine. The doctor was very congenial, kept me up to date on what's going on. I appreciate the service that he gave me.

  2026-07-03

• My experience with this care provider- was excellent.

  2026-06-25

• Dr. Preston is an expert about the bladder cancer that I have. He keeps me completely informed about it and has provided outstanding medical care for me.

  2026-06-22

• The Doctor is a great provider. I fully recommend him.

  2026-06-20

• New my med history and i have all the faith in him

  2026-06-20

• Easy

  2026-06-19

• I am very happy with the provider Thank you

  2026-06-17

• Knowledgable, caring, personable, and efficient. Very glad to be his patient.

  2026-06-24

• Very grateful for Dr Preston's care!!

  2026-06-14

• I felt he was professional and answered my questions.

  2026-06-13

• Doctor was clear with potential care options that may be required

  2026-06-13

• Well qualified Top Notch

  2026-06-13

• Good care

  2026-06-12

• Dr. Preston is excellent: gracious with his time, clear with his answers, thoughtful with his diagnoses.

  2026-06-09

• Dr. Preston is excellent. Knowledgeable, friendly, and communicative.

  2026-06-07

• Dr. Preston saved my life. I met him about a year ago. I had been told to go home. I only had four to six months to live. I met Dr. Preston, who had an incredible confidence level. He told me that we would go ahead, or he would go ahead and take out, excuse me, my bladder and my prostate, and that there were two other spots and we would fix those after the fact. I had such confidence in him that there was no question that we were going to do this. We did, and here I am 10 months later, still living and in outstanding health, except for follow-up treatment.

  2026-06-08

• I absolutely Love Dr Preston. He is skilled surgeon who seems to love his Job. He listens to my questions and answers in such a way I can understand. He is so smart and skilled yet humble and empathetic.

  2026-06-06

• Dr. Preston has followed me medically for several years and has always given me excellent service and medical advice.

  2026-06-05

• I couldn't be more satisfied with Dr. Mark Preston. Excellent communicator, great listener, patient, and, most importantly, outstanding surgeon.

  2026-06-05

• Dr. Preston is an excellent doctor. He's a good communicator. He's very good at listening to the patient in terms of the patient's concerns and interests. He spends adequate time and doesn't rush the visit. I would say that of the several doctors that I visit, he is by far the best. Thank you.

  2026-06-05

• Dr. Preston is great! I have 100% confidence in his prognosis and directions.

  2026-06-05

• I think dr.Preston is an Excellant, knowledgeable, and kind dr. I have utmost confidence in him

  2026-06-04

• Dr Mark Preston outstanding. he was exceptionally professional, and had obviously studied my record carefully before I was seen. He listened to everything I had to say and was careful to ensure that he answered my questions. He drew illustrations to help explain what he was telling me. dr. Preston's notes thoroughly and accurately described everything we discussed. Then he wrote a message on a weekend evening after getting my blood results to explain the results to me very carefully and thoroughly. Dr. Preston is the model of everything you can expect from an outstanding healthcare provider. I was very fortunate to have been referred to him. Thank you for this opportunity to expressed these observations and feelings, sincerely, [redacted]

  2026-06-04

• Thank you for what you do!

  2026-06-03

• He was very knowledgeable and helpful in planning the next stage of my treatment.

  2026-06-03

• He was very nice and courteous and very great with all the answers and questions that I had. I really thought he was great. Okay, thank you.

  2026-05-29

• Thought deeply about my issues

  2026-05-19

• Dr. Preston was a good listener and was willing to answer all questions asked during the appointment visit.

  2026-05-15

• Excellent

  2026-05-15

• Dr. Mark Preston is totally awesome. I've been seeing him for years. I have no complaints at all about any of the care I have received. Thank you. He's the best.

  2026-05-11

• Great physician and team.

  2026-05-10

• Mark Preston is awesome !!!!! We travel from [redacted] specifically for the great care we get in Boston and specifically from Dr Mark Preston He has been wonderful from the first time we met him very caring and takes his time explaining everything and listens to questions He is one of the best !!! We feel a lot of gratitude to have him for [redacted]s care.

  2026-05-09

• I appreciate the excellent care provided by Dr. Preston.

  2026-05-09

• Dr. Preston surely seems competent and confident. I only wish he had been a little bit more compassionate and listened a little bit more and open to other ideas.

  2026-05-08

• Dr. Preston is great. He's very easy to talk to and speaks in a calm, casual tone, but direct when he needs to be. There's sometimes a lack of clarity as to "when" and "who" I'll be in contact with regarding follow-up. ("You should hear from someone to set something up soon." Who's someone? What's "soon"?) It's minor but more clarity with next steps & scheduling would be greatly appreciated.

  2026-05-05

• This was my first visit with Dr Preston and it was a very positive experience. He listened and discussed the different paths forward for treatments and monitoring.

  2026-05-05

• He showed genuine concern for me and answered all my questions

  2026-05-05

• Hello, I really appreciate the fact that Dr. Preston has taken the time to follow up with me. [redacted] I appreciate the thoroughness, his willingness to listen to me, and he completely understands my situation. [redacted] So very, very grateful. [redacted]

  2026-05-04

• Dr. Mark Preston is an outstanding doctor. He's taken care of me now for six years. I'm cancer-free. He's done a wonderful job. He's always so courteous to me and is very, very thorough. I highly recommend him to a lot of my friends and relatives that might face a similar situation. He's outstanding.

  2026-05-01

• Dr Preston answered my wifes and my concerns and we have confidence in his advice and support.

  2026-05-01

• Everything was positive

  2026-04-30

• I saw only 1 doctor (Preston) and a nurse that took to the exam room and asked questions prior to seeing the doctor.

  2026-04-29

• Great docton

  2026-04-29

• It's all 10s Sooooo

  2026-04-29

• great provider and very honest with his recommendations for my continued care

  2026-04-29

• Unreal, just perfect.... the best

  2026-04-29

• Dr. Preston listened to what I had to say, and responded with clear and helpful information as well as ordering Rx's to address my increasing BPH symptoms and concerns. Very happy with our long-term relationship.

  2026-04-28

• Great bedside manner, and very thorough.

  2026-04-26

• Very comfortable with this provider and what I feel is his grasp of my medical issues

  2026-04-26

• Dr. Preston is an excellent physician.

  2026-04-25

• Having Dr Preston as the provider is worth the hassle of getting into Boston to be seen

  2026-04-25

• Since my consult appointment with Dr. Preston i have received many updates from him regarding his reviewing all of my past bladder related surgeries including IR attempts to get through a mass in my right urethra.

  2026-04-19

• Pleased to have Dr.Preston as my urologist.

  2026-04-19

• Dr Preston is great

  2026-04-17

• Dr Preston is great...he listens to me when I ask a question and gives meaningful answers. He explains what he thinks my issues are and how to treat them. I am over 300 miles from him and yet he knows me as well as my pcp thats 20 miles away. I am so pleased that I connected with Dr Preston

  2026-04-16

• Dr. Preston is a very caring person. He communicates in a way that makes it easy for his patients to understand all aspects of the conversation and without using medical terminology. That has not been the case with other doctors I have met with over the years.

  2026-04-17

• I am 100% satisfied with the patient care that I'm getting from the doctor at urology with my prostate. The entire team has been very helpful, courteous, and the doctor could not have given me better advice. I'm 100% satisfied.

  2026-04-13

• Very professional and answered all questions.

  2026-04-11

• Nice experience

  2026-04-10

• Dr Preston answered any questions I had. He has been very supportive. I never feel rushed during my visit.

  2026-04-09

• I didn't get timely reply to my messages and questions after a MRI last year.

  2026-04-09

• Dr. Preston is awesome

  2026-04-08

• Dr. Preston does a great job! I always feel like he is listening to me and understands what I am going through! I am very happy with my decision to seek care through Dana Farber Cancer Care and Mass General.

  2026-04-08

• Dr. Preston has been following a calcified cyst on the upper right pole of my right kidney for 8 years. As a result, he is very familiar with my case. A recent ultrasound demonstrated that the calcified cyst resolved. Dr. Preston was able to convey the pertinent information and answer questions relatively quickly over the phone. His provider's notes about the appointment with me, document the history of the cyst which had been classified as a Bosniak II-F. I have enjoyed having Dr. Preston as my urologist.

  2026-04-08

• Dr. Preston is excellent.

  2026-04-08

• My providers were professional and compassionate, as always.

  2026-04-06

• Dr Preston was great. Showed definite care about my condition. Definitely interested in my care. I am very pleased to be his patient.

  2026-04-04

• Very professional with excellent communication skills. Caring with a positive attitude.

  2026-04-04

• Dr Preston is one of the best doctors I ve ever had. His professionalism gives me confidence i ll stay in remission from the cancer i had.

  2026-04-04

• I love Dr. Preston, the man saved my life. He's caring. He listens to you. And I wouldn't go anywhere else. And if anybody I know needs to see an oncologist, it would be Dr. Preston if it was for urology. Thank you.

  2026-04-03

• [redacted] the communication and care was exceptional.

  2026-04-01

• Look forward to getting treatment from this provider. He has my confidence.

  2026-04-01

• I was very happy with everyone I dealt with during my visit. The physician listened and communicated perfectly. I am glad I made the de decision to go with this provider.

  2026-04-01

• Dr. Preston is the best! I've been under his care for almost eight years. Great surgeon. The outcomes from my radical cystectomy are very good. Highly recommended!

  2026-03-30

• Dr. Preston is an extraordinary doctor. His skills and knowledge and expertise are incredible. I have the utmost respect for his skills and knowledge and expertise. I would recommend him to anybody, friends, family. I'd recommend him to anyone. He's also not afraid to take risks, which I think these days is not found in many doctors, but he's willing to. And based on his knowledge and his expertise, I think they very often come out in his favor.

  2026-03-23

• I have no problems. Everybody was great.

  2026-03-21

• He is kind, considerate and very skilled I highly recommend him!

  2026-03-21

• Great doctor

  2026-03-18

• I have very high regard for Dr. Preston. [redacted]

  2026-03-16

• my partner and i were anxious about my visit and what surgical outcome may be in my future. dr preston was very explanatory and we had all our questions answered. we left feeling that i have the correct surgeon and i am in the best place for my bladder cancer.

  2026-03-15

• Dr Preston is the best..... [redacted]

  2026-03-21

• Staff is very professional

  2026-03-11

• Dr. Preston is an excellent doctor and I'm very grateful to be seeing him.

  2026-03-11

• I find Dr. Preston to be extremely good at what he does, caring, informed, and kind.

  2026-03-18

• Pleasant encounter.

  2026-03-07

• the best.

  2026-03-05

• I love my care team

  2026-03-05

• Dr. Preston is empathetic, caring and on target.

  2026-03-05

• Dr Preston has been a valued physician of my health care team. I have great confidence in his expertise and appreciate his caring demeanor He also politely laughs at my corny wise cracks

  2026-03-04

• Excellent care in each and every aspect Of my visit

  2026-03-04

• Dr Preston was amazing. He was professional, knowledgeable and added just enough "light" conversation to the appointment that could otherwise have been very intense. He gave me great confidence in his ability to help me.

  2026-03-04

• I am so grateful that Dr. P could arrange to see me via telehealth when the office was closed in the blizzard. We had traveled the day before to be sure we were nearby for the appt and it got cancelled hours after we arrived. He was so responsive and kind

  2026-03-01

• Dr. Preston has been incredibly professional. He has answered every question I've had and the surgery he performed went flawlessly. I am having an amazing recovery because of him.

  2026-02-28

• I find Dr Preston to be warm, knowledgeable, and pleasant. It is a pleasure to meet with him.

  2026-02-16

• Have confidence in his expertise. Warm, friendly.

  2026-02-16

• Very good

  2026-02-14

• Dr. Mark Preston was nothing but a professional all the way. I really respect his time, listening to what I had to say, explaining things to me thoroughly, and explaining different options that I may have. I'm very fortunate to have him on my team.

  2026-02-13

• Dr Preston is amazing . He is a great Foctir . Very knowledgeable and extremely up to date on the latest medicines, chemo and treatment plans for every patient.

  2026-03-01

• They're always on time. The nurses are very good and I really enjoy the doctor. He's helped me through my cancer and I owe him that. So that's it.

  2026-02-27

• He's an excellent surgeon his follow up care needs work.

  2026-02-24

• Dr Preston is the most compassionate doctor I've ever seen. He is very knowledgeable and has given me new life

  2026-02-24

• top notch

  2026-02-04

• My experience with Mark is very positive. The difficulties I've had are with his back office and a very spotty record in getting back to me about appointments or any other questions I might have. That's it. Thank you.

  2026-02-05

• Professional and kind

  2026-02-02

• I waited awhile for the appointment but once there, every aspect of dealing with Dr. Preston and all others was perfect

  2026-01-31

• Really appreciate the treatment I have received and the expertise that the doctors and medical professionals have displayed.

  2026-01-31

• Dr. Preston was very impressive, very professional, very knowledgeable, answered all my questions, was respectful, and he was easy to talk to.

  2026-01-30

• Excellent physician

  2026-01-29

• Well, Dr. Preston's an excellent doctor. I'm glad to be under his care and I get a cystoscope with him and he makes it bearable, actually. So I appreciate that.

  2026-01-30

• I am guessing I could not find better.

  2026-01-29

• This doctor was a recommendation from another doctor, and I found him very pleasant and personable very much

  2026-01-28

• Very thorough, answered all questions well.

  2026-01-22

• Never rushed, always caring! Answered all questions and plan in place for future.

  2026-01-18

• Very calm, and explains things well. He is very knowledgeable.

  2026-01-18

• Dr. Preston was professional and put me at ease. He gave me information needed to understand my options. He remained open to see me in the future as needed

  2026-01-18

• Dr Preston was thorough, informative, patient, answered all my questions, and even drew a diagram to help me better understand my situation. I was impressed

  2026-01-18

• Dr. Preston has a fantastic bedside manner. He was patient and friendly. He took his time with me understanding my angst about what I am experiencing. Dr. Preston was the one who found problems that my former urologist either didn't see or overlooked... To me, Dr. Preston is expert in his field, and I consider myself among the very fortunate to have him as my urologist.

  2026-01-15

• Nothing to add, [redacted] and Dr. Preston are an absolute pleasure to deal with.

  2026-01-13

• I was quite pleased with my experience with Dr Preston and his assistant and my initial experience with the hospital and reception was very positive helpful and enjoyable

  2026-01-11

• Impressed with the care

  2025-12-24

• A good exper

  2025-12-24

• My experience was and always has been tremendous with Dr. Preston. I am suffering from bladder cancer, which is you may know a serious disease. And ever since I've been in his care for several years, he has been nothing but extraordinary in confidence, make me feel that I'm in good hands, trusting, even though the pain and the procedures sometimes are very tough with him. He makes it so much easier and to understand and just generally all around is probably the most efficient and competent doctor I've dealt with concerns.

  2025-12-28

• Knowledgeable, respectful, polite, good listener, answered all my questions.

  2025-12-25

• He's very easy to talk to and listens to what the patient has to say, besides being a great surgeon!

  2025-12-24

• Excellent knowledge and quality care

  2025-12-21

• Dr. Preston always makes the procedure as easy and comfortable as possible! He explains what is happening during the test!

  2025-12-20

• For some reason, the virtual visit did not occur. I don't know if it was a technical problem or something on my end or on the other end of the line, but there was no virtual visit.

  2025-12-11

• I am my sister [redacted]'s health care proxy and caregiver and Dr. Preston was very good with my sister, addressed her directly and waited for a response from me, which is always a good thing. I like so that my sister feels that she's being addressed and heard and he was very knowledgeable. He spoke to us in plain language so that we could understand and answered all of our questions and we really liked him. Thank you.

  2025-12-11

• As a first visit, Dr Preston was very thoughtful in considering the status of my health issue. . His recommendation to explore more testing to find out exactly what is going on makes sense .

  2025-12-08

• Dr. Preston has been treating me for some time now and he's the best!

  2025-12-07

• Dr Preston is amazing. He clearly cares about his patients. He does a wonderful job explaining complex medical stuff in layman terms

  2025-12-07

• Dr Preston answered all my questions and was very informative

  2025-12-03

• Dr. Preston, has always been a pleasure to deal with even when the news isn't good. However, the news over the last nine months has been very good thanks to the excellent partnering with my oncologist, and Dr. Preston's sensitivity to my needs.

  2025-12-01

• Wonderful experience

  2025-12-01

• knowledgeable, answered all my questions appropriately, and plan of future care answered appropriately.

  2025-12-01

• Fine results So far no reoccurrence

  2025-11-24

• Mark Preston is both a top notch urologist and a kind, calming human being

  2025-11-22

• Doctor Preston was very polite and careful in his analysis for my health situation.

  2025-11-16

• Unlike the previous Doctor, I had seen, Doctor Preston actually asked me what I thought about my situation and how I wanted to deal with it, rather than automatically tell me what he wants to do. That made a world of difference to me.

  2025-11-15

• Dr. Preston is absolutely fantastic. I trust him. He's great. And I just want to be well with him. That's it.

  2025-11-14

• Dr. Preston is thorough and professional. I have great confidence in Dr. Preston.

  2025-11-12

• Dr. Preston is great. [redacted]

  2025-11-10

• Was seen promptly and was familiar with my case.

  2025-11-21

• We were referred to Dr. Mark Preston by a long time care provider, Dr. [redacted]. We are thrilled by the referral. Dr. Preston has a wonderful way about him, and are impression is he is a very accomplished physician / surgeon.

  2025-11-08

• All was good. Nice professional people. Thank you

  2025-11-07

• Dr. Preston was very well prepared for my visit. He was clear about my next steps. And most importantly he game me confidence in going ahead.

  2025-11-02

• the phone visit did not happen. I could see and hear the Doctor but the Doctor could NOT see of hear me. Luckily the Dr called the home phone and we were able to communicate. I had call your Technical Center to ensure i was properly connected and they advised that I was. But....the Dr could not see or hear me. I could see and hear the Doctor. The Technical center said I had to test my internal on my computer. I did not understand a thing they said told me and I had to close the call and my computer down. I am NOT that computer educated. I do not have a 10 year old child to help me. Very disappointed with the technology given...

  2025-11-02

• Seen on time. Appropriate questions and care.

  2025-11-01

• Dr. Preston and his team are professional and caring. Everything was carefully explained along the the future plan of care. I completely trust the medical care from Dr. Preston and his team.

  2025-10-30

• the nurse was very nice, knowledgable, made me feel relaxed went great with dr preston also

  2025-10-30

• Very understanding

  2025-10-30

• I have seen Dr Preston for several years now and he has been great with all of my concerns. I am grateful that he is much younger than I am and I hope he continues in his current position for a long time.

  2025-10-29

• Excellent communitator....

  2025-10-29

• Professional, friendly and precise!!!

  2025-10-26

• Dr Preston and the entire team at the Dept of Urology are easy to work with. They are very professional, friendly and informative.

  2025-10-25

• Dr Preston is always professional and informative..His bedside manner is awesome and refreshing. I am very happy to be with him and his team.

  2025-10-24

• My questions were answered and the visit was complete and to the point. I was very pleased with what Dr Preston had to say.

  2025-10-19

• Dr Preston is the best. Very knowledgeable and explains everything. Willing to listen to all problems.

  2025-10-14

• My virtual visit was provided between surgeries. This is above and beyond! Thank you very much!

  2025-10-13

• Dr. Preston was 40 minutes late to the appointment with no apology or reason given. It gave the impression that my time is less important than his.

  2025-10-13

• Mark Preston, Dr. Mark Preston, I should say, was extremely thorough, covered all my questions, and left me with a complete satisfaction of what of regular officers it should be.

  2025-10-13

• Dr. Preston keeps me well informed about my condition and offers help with any problem I might be having.

  2025-10-13

• Dr. Preston is a knowledgeable, thorough provider.

  2025-10-12

• Dr Preston is attentive, professional and answered all my questions. I Highly recommend Dr Preston.

  2025-10-11

• I have tremendous confidence in Dr. Preston! I am fortunate to have him as my provider. He is certainly busy and in demand!!

  2025-10-09

• The provider was very good and pleased with his care. Trying to get ahold of the BWH Urology Department with significant postoperative complications was difficult & unacceptable. Rarely were the phone answered or Gateway or voicemail messages answered.

  2025-10-09

• Dr Preston did an incredible job with my prostate surgery 16 months ago. Everything is functioning perfectly and all is good! Many thanks to him for doing such a great job.

  2025-10-08

• Dr Preston is excellent

  2025-10-05

• He is extremely knowledgeable and experienced. His bedside manner is great, he cares about me as a patient and a person. I left the appointment knowing I was in good hands and feeling very positive about my upcoming surgery.

  2025-10-11

• Dr Preston has been seeing me for Kidney and Bladder cancer since [redacted] and I have very happy with his work and bedside manners

  2025-10-02

• I would have like for him to better explain the biopsy procedure.

  2025-10-02

• Great surgeon.

  2025-10-01

• Dr. Preston always provides compassionate care, listening to my concerns and explaining things clearly. I never feel like he is rushing me out but is giving me the time and care I need.

  2025-10-01

• Dr. Preston has been treating my CA since 2017 and has always kept me up to date on my issues

  2025-10-01

• I am extremely happy to have this care provider on my team of experts that know and understand my condition.

  2025-09-29

• Absolutely thrilled with Dr Preston. Gave me some piece of mind with my cancer diagnosis. Went out of his way to explain things to me, and listened to what I was saying. So grateful to have found him and that he will be part of my medical team during this tough time.

  2025-09-28

• Dr. Preston is beyond excellence, best ever!

  2025-09-28

• Doctor and staff were excellent

  2025-09-16

• I was impressed by the way he reviewed the past record of my cancer, creating a drawing of where it was and where it recurred. I was concerned about a past injury to my kidney, he immediately ordered the appropriate test. Many thanks.

  2025-09-14

• Excellent

  2025-09-13

• Dr Preston is a genius

  2025-09-10

• I feel a rapport with Dr. Preston. And strong confidence that he is doing the best for me and my condition. I trust him and I like him.

  2025-09-07

• I was very pleased with the doctor. He listened very carefully and explained what I needed to know. The only hesitation on his part was if I needed to get in touch with someone immediately after hours. It appears I'd have to go through a hospital and get an on-turn, core intern.

  2025-09-06

• Respectful, knowledgeable

  2025-09-04

• Best ever , easy to speak with ...

  2025-09-04

• I truly hope this care provider can quickly inform me what my health issue is and, as soon as possible, perform or recommend a surgery or a procedure as I have been suffering from my urinary urgency, lack of a good night's sleep and burning problems during urination for several months now!

  2025-09-03

• Dr. Preston listened to me and let me tell him about my symptoms and concerns.

  2025-09-03

• Dr. Preston knows my condition and I have total confidence in my treatment . Very happy with the care I get.

  2025-09-04

• Excellent care. Finally some clear answers and expected treatments Thank you Dr Preston

  2025-08-31

• I have the highest regard for Dr. Preston

  2025-08-24