John Joseph Costa, MD

Patient Feedback

4.935111 average rating from 450 reviews

• Outstanding doctor. Extremely knowledgeable.

  2026-09-03

• I have been seeing Dr. Costa for over 25 years and I am very happy with him and his staff. [redacted]

  2026-09-01

• Have always had a wonderful office visit with Dr Costa. Been seeing him for years & his care & manner is the best. I'm 83 & don't believe I would still be on this earth without his support.

  2026-09-02

• Dr. Costa and his staff are excellent. Smart, courteous, and always helpful.

  2026-08-30

• I have been seeing Dr. Costa for more than 30 years and I think he is a wonderful doctor. [redacted]

  2026-09-01

• Dr. Costa is a top 10 quality provider. [redacted]

  2026-08-28

• Dr. Costa is the best!!! I have been seeing him for about 25 years. I have the utmost confidence in him. Years ago, I was very sick for a month with what turned out to be pneumonia. At first, I went to my pcp (who was very good), but I wasn't getting better. Dr. Costa diagnosed my problem immediately and got me back on the road to recovery!

  2026-08-25

• Dr. Costa is excellent. He's one of the best physicians I have ever seen.

  2026-08-21

• Dr. Costa always listens to everything that I have to say. He knows exactly what's going on with me and most importantly, he listens, which a lot of doctors don't do, but he always listens and always has recommendations and I feel like he absolutely cares about me as a person.

  2026-08-21

• Dr. Costa is is the most knowledgeable doctor I know! He asks many questions about my symptoms, listens intently, and provides the answers. I can't say enough good things about him. He's excellent!

  2026-08-19

• Excellent

  2026-08-17

• I wish ALL doctors were as professional and so easy to talk to! He communicates clearly and is incredibly knowledgable!!! I was so fortunate to have had an appointment with him!

  2026-08-19

• The Buzzard's Bay office is a world class care provider. John saved my life with great care. [redacted]

  2026-08-16

• Dr. Costa is one of the best doctors I have ever seen. MGH should do everything it can to support his practice.

  2026-08-15

• He is very knowledgeable and professional. Explains things in a manner that is easy to understand.

  2026-08-14

• I have been a patient of Dr.Costa for over 25 years and he has always been professional, kind, caring and truly cares about me and my well being. Treating me with respect always.

  2026-08-19

• Dr. Costa is always super thorough. I've known him just about my whole life. My mom is a patient with him and always has been. And then when I developed allergies, I started seeing him as well. [redacted]

  2026-08-12

• Dr. Costa was wonderful, very knowledgeable patiently listened and explained everything very thoroughly

  2026-08-11

• Dr. Costa is the smartest, kindest and most caring doctor I know. [redacted]

  2026-08-11

• [redacted] He's amazing and I appreciate him helping me through all my allergies and asthma problems.

  2026-08-07

• Excellent doctor. He probed through a complex issue enough to uncover issues of concern.'

  2026-08-05

• Dr Costa is a professional 1st class !

  2026-08-05

• Yes, I thought everyone in the office was very nice. The doctor was very nice. Thank you.

  2026-08-05

• Dr. costa has provided me with the best medical care and advice. He is an asset to your organization.

  2026-08-02

• I have been seeing the doctor for many years and have been a patient of Dr Costa. The treatment I have received from him has kept me healthy. I currently reside in North Carolina, but have a home here in Massachusetts so I make my appointment with Dr Costa because of the trust I have in him.

  2026-08-01

• Dr. Costa is a superior diagnostician and a most caring physician. Thorough and cordial, he is always informative and a pleasure to visit during my annual check up. He resolved a condition that seemed to baffle other specialists and regularly leaves me confident that I'm receiving the best advice. My highest regard will surely continue so long as he remains available to see patients.

  2026-07-30

• Dr Costa is very thorough, very detailed, and one of the best Dr's that I see. He's very knowledgeable and easy to talk to. I have recommended him to family and friends. [redacted]

  2026-07-31

• He listened to me. The report he received from the ER was poorly written but he listened and treated me well.

  2026-07-29

• Dr. Costa is my single favorite doctor that I have ever seen. He always takes the time to talk to me, to discuss details that may seem unimportant, to get to the heart of the matter without seeming rushed. I sincerely wish every doctor treated all of their patients like he does.

  2026-07-27

• I find Dr. Costa very helpful he listens carefully and is very helpful

  2026-07-26

• Dr. Costa is exceptional. I have had a lifetime of allergists and he surpasses all.

  2026-07-25

• Dr. Costa is a great doctor. He's very knowledgeable, skilled. He understands my case and always works to listen to me and to help me with whatever I need.

  2026-07-24

• Dr. Costa is a wonderful diagnostician. I have complete trust in the advice that he gives me and have found it very helpful throughout my life.

  2026-07-24

• Dr. Costa is one of the best providers I have dealt with. [redacted]

  2026-07-23

• I have loved seeing Dr. Costa, [redacted]. I appreciate his professionalism, kindness, genuine care and engagement. [redacted]

  2026-07-23

• Always a pleasure to have an appt with Dr Costa.

  2026-07-21

• Always thorough and attentive

  2026-07-21

• I have been since Dr. Costa for many years and I have always felt heard and seen. My issues are directly addressed and I always leave with a comfortable feeling about my concerns.

  2026-07-18

• Dr. Costa is one of the best, best, best physicians I have ever seen. He is thorough, he is personable, he explains things very well and takes the time to hear everything that I have to say and answers my questions very well. [redacted] He has been a fantastic part of my healthcare journey.

  2026-07-11

• Dr. Costa has been an excellent doctor. He takes time, he thinks about what questions you ask, and he's very thoughtful. He's been a great doctor.

  2026-07-10

• Dr. Costa has always been efficient, pleasant and friendly. His caring shows through each exam. Been following him for years. I expect nothing but the best from him and I am never disappointed!

  2026-07-07

• Dr Costa always listens carefully and asks excellent questions to be sure that he completely understands any symptoms I have and how they may be mitigated.

  2026-06-24

• I have been a patient of Dr. Costa for many years. He is always professional, knowledgeable and explains things in a way that I can understand. I trust Dr. Costa to do what's best for my health.

  2026-06-22

• I've been happy with Dr. Costa's expertise for more than 20 years, and I still am. He always provides good advice and guidance.

  2026-06-22

• I have been a patient of Dr Costa's for over 30 years. He is the reason I can breathe and my allergies are under control. Wouldn't trust my asthma to anyone else.

  2026-06-19

• Been a patient for many years and very comfortable with him and staff

  2026-06-15

• Dr Costa listened to everything I had to say

  2026-06-15

• Dr Costa is one of the nicest doctors. He certainly cares about his patients. He's high on my list of doctors and his staff is just as nice.

  2026-06-15

• Yes, I have been seeing Dr. Costa for many years and I feel that I have had an excellent medical person dealing with my problems with asthma and also with my allergies. He is extremely professional, knows what he's doing, and I have been very satisfied with how he has managed my prescriptions over the years. [redacted]

  2026-06-14

• I worked in hospitals for approximately 40 years. I was a care provider and ultimately a supervisor. The care I received from Dr. Costa and his staff was superb, and has been for the past 10 years where he has been treating me.

  2026-06-13

• Dr. Costa is the absolute best! I have been his patient for almost 25 years and he has guided me through some rough times with care, concern, and patience. He treated my children when they were young, and now treats my brother who is convinced that he is a phenomenon among doctors. Dr Costa truly listens to your concerns, asks many questions, and works with you to develop your medical plan of action. Dr. Costa tells it like it is. He tells it with kindness and humor, but he lets you know exactly where you stand. I appreciate this so much. His clarity has helped me deal with my conditions more realistically. He is the best!

  2026-06-12

• Dr. Costa saved my life with his expert diagnostic skills and subsequent plan of action. After 10 years of frustrating illness, he determined the cause and continues to fine tune the clinical plan of action.

  2026-06-12

• Satisfied with all aspects of my visit

  2026-06-10

• Dr Costa is excellent and I have been seeing him for 22 years. [redacted]

  2026-06-10

• I think Dr Costa is wonderful, He has helped me so much!

  2026-06-11

• Dr Costa is very knowledgeable and thorough and has a demeanor that puts one at ease. I respect his experience and proficiency.

  2026-06-07

• Excellent doctor. Knowledgeable, professional, and empathetic.

  2026-06-08

• Dr. Costa is a wonderful physician. He listens to you and is very knowledgeable. [redacted]

  2026-06-06

• From the front end to nurses to the doctors, everyone was very professional

  2026-06-03

• Dr Costa is very professional, methodical and caring. He has been a huge help to me.

  2026-06-03

• Dr. Costa has been my doctor for 20 years. I obviously am going to him now because I have complete confidence in him, his wisdom, his sensitivity, his interest in me. Thank you.

  2026-05-29

• The office is very accommodating. The staff is friendly and inviting. Dr. Costa is caring, concerned, and always well informed. [redacted] no matter what , I will follow Dr. Costa.

  2026-05-28

• The provider and staff continue to be professional and exceptionally accommodating in the care they deliver. This provider is what all providers should strive to be.

  2026-05-27

• Dr. Costa has always been attentive to my allergies. He is an excellent doctor.

  2026-05-27

• Dr.Costa has been my doctor for several years. He is extremely thorough, spends plenty of time, listens and responds to all my concerns he is the very best if the best!!! Exemplary care always.

  2026-05-28

• Dr Costa is great! One of the best doctors I've had experience with. I saw him as a kid and still go there myself and take my kids there now as well.

  2026-05-24

• Dr Costa and his staff listen to my concerns and discuss how best to handle my health issues.

  2026-05-23

• Dr. Costa and his team are wonderful, knowledgeable and very invested in patient care

  2026-05-22

• Provider extensively reviewed test results and gave a clear path forward

  2026-05-19

• I have seen Dr Costa for many years. He is like an old friend. He always takes the time to listen to my concerns.

  2026-05-22

• Dr Costa is the best!

  2026-05-20

• Hi, Dr. Costa is the best. He is always attentive. He knows my records. He's obviously looked at them before I come in. I would recommend him to anybody. He has taken care of me for years. Thank you.

  2026-05-21

• I've never had any problem with Dr. Costa. He's a very nice doctor. I want to say I've been going to him for years ever since he was in a Wareham office. I absolutely love him for a doctor. If I have a problem, I have no problems getting an appointment to get in to see him.

  2026-05-17

• Dr Costa is an extremely great communicator and is also a great physician. He listens to my concerns and his work experience is full of knowledge. A great doctor.

  2026-05-17

• excellent

  2026-05-15

• Excellent as usual.

  2026-05-14

• Dr Costa really is a caring thorough doctor. He really cares for his patients and wants the best for them always. He asks the right questions and makes patients feel comfortable.

  2026-05-12

• Always very knowledgeable and kind.

  2026-05-12

• He spent a good amount of time with me and listened to my concerns. I felt very comfortable with him and he explained everything to me thoroughly and in terms I understood. And he went out of his way to find a solution to my problem.

  2026-05-10

• Dr. Costa is a wonderful doctor, and I am grateful to have him on my medical team. He is warm, friendly, professional, efficacious, and I feel he takes time to know me and best manage my asthma care.

  2026-05-09

• Wonderful physician

  2026-05-08

• Dr Costa really listened to me and took his time. It was a productive visit

  2026-05-07

• I am a long time patient of Dr. Costa and have always had a good experience. He listens to what I have to say and is very thorough. Can't say enough good times about him.

  2026-05-15

• Helpful

  2026-05-04

• I have to this provider for many years and they are always on top of things and discuss everything about my health to my understanding.

  2026-05-03

• Dr Costa and his office are always pleasant. He is sincere and takes time to be reassuring and gives good advice. I am very happy with his treating my breathing problems and asthma. [redacted]

  2026-05-02

• He is excellent - very caring, good listener, knew exactly what to recommend once he got the allergan test results. I feel much more confident that I can control my illness-induced asthma now!

  2026-04-29

• I find him hard to converse with, to share info with him. He tried to interject his idea or opinion and I told him to 'hear me out' about a health issue I've been struggling with the past year.

  2026-04-29

• Dr. Costa is beyond wonderful. I cannot imagine how I will manage without his caring, humor, and intelligence.

  2026-04-30

• I have seen Dr. Costa since 2003. He is the best doctor that I ever had.

  2026-04-29

• I have many illnesses & see many specialists. Dr. Costa was the only one who read my chart before I got there (1st visit), was educated on more than just immunology & how it fit in with my other medical issues, took the time to listen to me (I have lots of concerns about 1 med affecting other conditions), explained the testing & results & options, did testing a pulmonologist at MGH didn't do showing exactly what my problem is & validating what I knew it was... I could go on & on. I haven't been treated like a whole person at a doctors appt like with Dr. Costa in decades. I have already posted on Cape Cod women's group FB page (7000 members) all about him & recommending him. I've never done that before regarding a western medicine dr.

  2026-04-22

• It has been my great pleasure to have Dr. Costa as my physician for many years. [redacted] He is a terrific physician and I was lucky to be his patient.

  2026-04-23

• Team Costa simply said are perfect.

  2026-04-22

• As a senior retired health care leader, Dr. Costa is the best physician I have ever been treated by. He is incredibly kind, thorough, communicates in ways that is very understandable, uses humor appropriately, checks in on other health issues and ensures I understand treatment and rationale. I have referred numerous patients to him!

  2026-04-22

• Dr. Costa is a knowledgeable and very caring physician and has taken care of several members of my family and we all think that he's fantastic. Thank you.

  2026-04-23

• I have been seeing this provider for many years and he is truly one of the best.

  2026-04-20

• Dr. Costa is an excellent medical provider. He is thorough, knowledgeable, and personable. I enjoy catching up with him at each of my appointments. I could not ask for a better doctor.

  2026-04-17

• I was very impressed with Dr. Costa. He was kind and patient addressing my concerns and questions. He was genuine and careful with explaining what I needed to know about my allergies and how to live with them. It was a pleasure.

  2026-04-16

• I have been a patient of Dr. John Costa for over 30 years. [redacted] he has been an integral part of my health-care regimen for a significant part of my life and resolved my allergy issues many years ago. He is not just a health-care provider, but he is also a good friend. [redacted]

  2026-04-15

• The doctor is very attentive and cares about his patients. He listens carefully to any/all of your comments and answers all concerns.

  2026-04-16

• Been under the care of Dr John Costa for 20+ years and he is exceptional- I was in a challenging spot and he has maintained my chronic condition with scrupulous care and attentive medicines -Happy to report that I have been chronically stab;e for years. He has been a life line for me whenever I have reached out and the staff is the same!

  2026-04-13

• Very caring and thorough.

  2026-04-11

• Thorough, kind

  2026-04-08

• I receive excellent care and I have total trust from the doctor and nurses.

  2026-04-10

• Professional and pleasant.

  2026-04-10

• Dr. Costa is a wonderful , caring , compassionate and knowledgeable clinician who has been my provider for years . He listens well , answers my questions and always discusses the plan going forward . When I was sick in month prior to seeing him his office and he responded quickly each time I called for assistance .. Highly recommend him !

  2026-04-09

• Yeah, my name is, I'm not going to say my name. I have been with Dr. Costa for probably 30 years and he's very attentive. He listens and gives feedback. He's a very, very attentive doctor. I like going to him very much for those reasons. And that's it.

  2026-04-06

• You are lucky to have him as a member of your team of physicians!

  2026-04-02

• Mass General is nothing but the best! Thank you for absolutely everything that you do for me and for others!

  2026-03-30

• Feels like he really cares about me and my issues even though he has so many patients. Always listens and if something isn't working tries to come up with something that will. Doesn't treat you like a number

  2026-03-29

• Dr. Costa is an outstanding doctor. He's extremely concerning, thorough, kind. His follow-up, his conversation is 10 plus. I would highly, highly, highly recommend Dr. Costa to anyone that needs an allergist. He's great.

  2026-03-28

• He's kind courteous, and a very good listener and he explains things to you in detail that you need to know when answers all your questions that you ask and that's what I like about him and I wouldn't change him for the world

  2026-03-26

• Very pleased with my provider. He is thorough & takes his time to explain information to me.

  2026-03-23

• Dr Costa is an outstanding physician. He has been my doctor for years and has probably saved my life more than once. I feel very fortunate to call him my doctor.

  2026-03-23

• Dr Costa has all the qualities I would seek out for a medical provider. He's professional, knowledgeable, caring, kind and friendly. He remembers me and knows my history with asthma. I wish more doctors had his level of caring and knowledge. I always look forward to my visits with him. Why? Because I like him!!??????

  2026-03-23

• Dr. Costa is one of the finest gentlemen I have ever met. Not only is he a great doctor but also a real down to earth guy. I have been seeing him for about 30 years and each visit is better than the last --- I have recommended him to numerous people who are now his patients -- my daughter and grandson are two of them. [redacted]

  2026-03-23

• one of the best providers i have ever seen. compassionate and engaging

  2026-03-23

• Dr. Costa and his team are wonderful. dr. Costa truly cares about your wellness. Asks sooo many questions to get to the root of your problem. 1 year after seeing him allergies and asthma are under control. Very grateful!

  2026-03-21

• Dr. Costa has been my asthma care provider for several years. He is the most careful, caring doctor I have experienced in any setting. At the first apponitment, his questions about my medical history were detailed and perceptive, and I felt there was no limit on the amount of time I had available to express my concerns. He is never rushed or impatient. I am moving overseas, and will be sorry to say goodbye to him.

  2026-03-23

• Dr. Coster is a wonderful and extremely thorough and knowledgeable doctor.

  2026-03-20

• Dr Costa is a wonderful doctor and I have so much confidence in how he has treated my asthma over many years. He listens to very intently to me when I've had an episode so he fully understands how I'm feeling. I have so much respect for him.

  2026-03-18

• Dr. Costa has given me excellent care for 30 years.

  2026-03-18

• A keeper-- excellent

  2026-03-18

• Dr Costa is respectful, caring, friendly and an excellent physician. He has taken excellent care of my medical needs and I am healthier thanks to him.

  2026-03-18

• Dr. Costa is knowledge and has always provided individual care based on my history and current health. He has been my doctor for over 30 years!

  2026-03-17

• Dr Costa pays close attention when you talk to him about what going on with you if you are having issues. If something isn't working for you he tries to change gears or add something new. If there is something new out he knows about it and will be willing to have you try despite his office having to deal with insurance. You can call and get an answer to a question Same day or next day. Feel like he genuinely cares and you don't feel like. Number when you go in. He listens and takes the time he needs despite having so many patients. And just a good guy in general.

  2026-03-12

• I've known Dr. Costa for over 30 years. He's always been courteous and professional. The doctor takes the time to answer my questions and provides the greatest of care. He is absolutely top notch, A++.

  2026-03-11

• Great experience from the time arrived to the time I left. Everyone was courteous attentive. The doctor spent as much as I needed. He was curious and attentive, taking notes on what I was relaying to him. Genuine care and desire to find an appropriate care plan.

  2026-03-11

• I have written before about my experience both with this office and especially with Dr. John Costa I think is absolutely one of the best doctors I have ever met. He is incredibly insightful, intelligent, patient, compassionate - everything everyone would want in an important doctor in one's life.

  2026-03-12

• He is the best!

  2026-03-11

• I have been a patient of Dr. Costa for many years. I credit him with my asthma being under control! The medications and advice he has given me have always worked! I could not ask for a more knowledgeable allergist.

  2026-02-24

• Dr costa definitely is the best doctor I have ever seen. He cares and that is important. A lot of doctors do not seem genuine in concern but he is the best

  2026-02-23

• Dr. Costa is the best! I'm grateful to have found him to take care of my allergy symptoms.

  2026-02-27

• Dr. Costa is a fantastic allergist asthma doctor. Highly recommend.

  2026-02-23

• He was outstanding. I have been seeing Dr. Costa for 30 years. Not once have I have a bad thing to say about his staff or him. They have always been a terrific team and work together very well. From my point of view. Terrific Doctor.

  2026-02-20

• Both the nurse and Dr. Costa were extremely friendly and remembered about my private life and family and inquired about both.

  2026-02-18

• Would not hesitate to recommend this office. Entire office is a pleasure to deal with!

  2026-02-17

• Dr. Costa has been a wonderful physician in my years at the clinic. He will be sorely missed.

  2026-02-18

• Dr. Costa and I have a history of 20+ years together as patient/doctor so we are open to any dialogue as necessary

  2026-02-19

• Dr. Costa and his office, I would say, are the best and they listen very well and do everything they can to help you.

  2026-02-19

• Dr. Costa and his staff are so good. They take the time to listen to you and they review your chart so they know what is going on. He even remembered I have two cats and a dog!

  2026-02-18

• Always professional

  2026-02-16

• 5 stars

  2026-02-16

• Excellent, caring doctor!

  2026-02-15

• Dr Costa is amazing. He helped me with all my child's needs all the allergies and he always put my nervous mom brain at ease.

  2026-02-14

• Dr. Costa always provides me with excellent care. I feel listened to, and I don't feel rushed. The people in his office are always friendly and knowledgeable. I have been with this physician for close to 15 years and it is always a positive experience. Dr. Costa truly cares about his patients.

  2026-02-11

• One of the best doctors in Mass., if not the country.

  2026-02-11

• Dr. Costa is an exceptional physician-caring, knowledgeable, and clear about medical issues.

  2026-02-27

• Dr. Costa is a wonderful doctor. I'm very pleased with him.

  2026-02-27

• I have been a patient of Dr. John Costa for over 30 years, and his care has truly changed my life. He is consistently respectful, professional, and incredibly attentive, always taking the time to listen and ensure I feel heard. He explains everything clearly and thoughtfully, especially when guiding me on how to manage my symptoms or what steps to take if I begin to get sick, which has given me confidence and peace of mind. He is always there when I need him, and his compassion, genuine concern, and steady support go far beyond routine medical care. Because of the way he has cared for me over the years, I am a healthier, more informed, and more confident person, and I am deeply grateful for the impact he has had on my life.

  2026-02-09

• I have seen many providers over the years. This group was exceptional in the way the treated me and the way they responded to my questions. I was very glad I chose them

  2026-02-07

• Have been a patient of Dr. Costa's for many years and value his advice.

  2026-02-08

• I cannot say enough good things about Dr. Costa. I have been seeing him for decades and he is a wonderful knowledgeable and caring doctor.

  2026-02-06

• I am a patient of Dr. Costa. After my daughter had successful treatments with him, I saw what a great job he and his staff, how well they handled my daughter, and I quickly made an appointment for my own, for him to look at me for my allergies and beyond impressed. He is complete, very thorough. very communicative, makes me feel like we're in a conversation, not that my, what I say doesn't matter. It's very obvious that he cares. I've had actually the same nurses every time we've gone. The nurse that we had this time is amazing. She's super patient, calm, friendly, really, I don't know, I can't say enough good things about this office. I've only had great experiences so far.

  2026-02-06

• Very personable, liked him very much, gave me a lot of information, answered all my questions. Very happy and engaging doctor. Very, very pleased. Can't say enough positive about him.

  2026-02-04

• Dr. Costa is a wonderful, caring doctor. He's very thorough and is very helpful. I would recommend him to anyone. Thank you.

  2026-02-05

• Great Dr listens and has developed a plan that works for me

  2026-02-01

• Always good to see Dr.Costa

  2026-02-01

• Pleasant,thorough review of my medical background & explanation of what would occur based on presented facts.

  2026-01-31

• Dr Costa is the best! He is caring, kind and gives great medical advice.

  2026-01-29

• very knowledgable and caring

  2026-01-29

• Dr. Costa is extremely thorough and that gives me a great comfort when I see him. He goes through everything, medication, does this feel like it's okay? Is that okay? So I have to say he's a super thorough doctor and that's really important to me.

  2026-01-29

• Dr. Costa is great doctor, wonderful person, and has a great practice

  2026-01-27

• Dr. Costa was great. He listened to my concerns. He looked at alternatives. He reassured me that the plan that he would put me on would help relieve my sinus infection. And he encouraged me to keep in contact with him. He was great.

  2026-01-23

• Dr Costa is wonderful to work with: good listener, creative thinker, helpful and clear

  2026-01-22

• Dr Costa is amazing, he has always taken great care of me!!

  2026-01-18

• John Costa is best of the best. Team at Allergy and Asthma as well.

  2026-01-18

• My appointment starts with taking my vitals, discussing my medication and then my breathing tests. The nurse reviews the instructions for breathing in the tube which I find helpful. She was very professional.

  2026-01-17

• Always nice to go to this office. Great caring people. Favorite doctor!!and I know I can sometimes be a bit to deal with...

  2026-01-14

• Yes, I've been with this provider for 28 years. He's wonderful. I wouldn't go to anybody else.

  2026-01-14

• Because of this provider I have been able to live a healthy life do toy conditions.

  2026-01-14

• I am very grateful to Dr Costa for all of his care. I was very sick before seeing him. Since then he has my asthma under control.

  2026-01-12

• Dr. Costa was excellent. He was very thorough and took detailed notes. He explained things well. He makes patients feel welcome and comfortable. A+

  2026-01-14

• Dr. Costa exceeds every expectation you might have before seeing a physician. He is exemplary in every way. I am extremely grateful for his care.

  2026-01-10

• Dr. Costa is an excellent doctor, and I am very satisfied with his excellent work.

  2026-01-21

• My experience with doctors is professional. I'm not trying to leave my.

  2026-01-09

• This was my first appointment as a new patient. Dr Costa was professional, clear and concise during my visit. No lab tests ordered.

  2026-01-07

• My daughter is learning disabled and hearing impaired. Often doctors don't really listen to her or speak directly to her but Dr. Costa is exceptional.

  2026-01-03

• Look forward to having him manage my care.

  2025-12-30

• Wonderful

  2025-12-24

• I'm always satisfied with my provider Never have had any complaints

  2025-12-24

• The technicians were working diligently to complete my check-in and do the breathing test and I had questions and I get lightheaded with the breathing test and the technician was being very helpful with me I felt bad for the technician when you got upset with her because she was providing good care and helping me get a good assessment with the breathing test

  2025-12-25

• Dr. Costa is always thorough and helpful. I'm very fortunate to be in his practice participation.

  2025-12-24

• Dr. Costa asked appropriate questions, he was professional and did an excellent assessment and his plan of care was done with care and expertise. I was so very fortunate to have Dr. Costa take care of me. He was excellent Thank you, [redacted]

  2025-12-24

• Dr John Costa is caring, kind, thorough, and he takes the time to listen to me.

  2025-12-23

• Dr. Costa is a wonderful doctor. He knows my health history,listens to my concerns and explains what my treatment should be and explains the reasons why the treatments work. I highly recommend him

  2025-12-22

• Dr Costa always take time to listen to my concerns and adjusts treaty amendments as needed.

  2025-12-20

• Always very thorough exam and discussion.

  2025-12-20

• Dr. Costa is without a doubt one of the best practitioners out there. He is beyond knowledgeable in his field and the treatment he provides has significantly improved my life. He is always very attentive to patients, giving each appointment the time it deserves. Dr. Costa's examination process is comprehensive and he gives detailed answers when providing explanations, all while being sure to listen to patients and prioritize their questions and concerns. I cannot recommend him enough.

  2025-12-17

• The provider spent a lot of time with me regarding a proposed prescription change. He listened very carefully to what I had to give him for information and really wanted to do the best by me in order to get a change that was needed. I really appreciate it.

  2025-12-19

• I've been a patient of Dr. Costa's for 20 years plus and every time I show up, he is extremely well prepared, knows the history, asks all the right questions, makes sure that I'm taking my medications as prescribed and he's just a very impressive person. Thank you.

  2025-12-19

• Dr. Costa always shows concern for my health. He always takes the time to talk to me and explain the plan for my health. He's a very patient and kind doctor.

  2025-12-16

• Excellent

  2025-12-16

• Dr Costa is super attentive to all of my pulmonary issues. I highly recommend him if anyone is needing a specialist.

  2025-12-14

• Dr. Costa is wonderful. I would definitely recommend him and his staff.

  2025-12-11

• Dr Costa is the best! He listens and asks insightful questions in a way that no other doctor I have seen does. He has treated a health condition that I have had since childhood, and has gotten results for me that nobody else has been able to do. I feel incredibly lucky to have found him. His office operates efficiently, I always get a call back if I need one, and his staff is as kind as he is. It is a reflection of his high standards.

  2025-12-09

• A great Dr. and a great staff.

  2025-12-07

• I couldn't have a better provider. The entire office is wonderful. Excellent care! I've referred two acquaintances since it's so hard (impossible actually) to find high quality immunology and allergy providers on the Cape. I so wish MGB was a larger presence here. We need you! Thanks for asking!

  2025-12-07

• I have been seeing Dr. Costa for many years for my asthma and allergies and I've been very pleased with the medical advice and the treatment that I received from him and this visit was the same and I enjoy seeing him when I see him and we have very good and timely discussions and I feel I'm being well served. Thank you.

  2025-12-07

• It was an absolute pleasure being seen by Dr. Costa, very thorough, very detailed, very engaged, very aware of where I was at as a patient and my concerns. I would highly recommend all physicians should be as Dr. Costa is. Thank you again, Dr. Costa.

  2025-12-05