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John Joseph Costa

John Joseph Costa, MD

Allergy and Immunology

Highlights

Age Groups Seen

  • Adults
  • Geriatrics

Languages

  • English

Gender

Male

Locations

  1. Mass General Brigham Allergy and Immunology Clinic
  2. Brigham and Women's Allergy and Immunology Clinic
    • phone: 617-732-9850
    • fax: 617-731-2748
  3. Mass General Brigham Allergy and Immunology Clinic

Expertise

Education

  • Fellowship: National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Allergy & Immunology, 1991
  • Residency: Boston University Medical Center (Orthopedics), Internal Medicine, 1987
  • Medical Education: Mount Sinai School of Medicine, 1984

Board Certifications

  • Allergy and Immunology: American Board of Allergy and Immunology, 1989
  • Internal Medicine: American Board of Internal Medicine, 1987

Insurance

This provider may accept more insurance plans than shown. Please call the practice to find out if your plan is accepted.
Search plans
  • Aetna
  • Beech Street
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield Medicare
  • Cigna
  • Commonwealth Care Alliance
  • Coventry
  • Fallon Health
  • Harvard Pilgrim Health Care
  • Humana
  • Mass General Brigham Health Plan
  • MassHealth
  • Medicaid ME
  • Medicare
  • Medicare ACO
  • Multiplan
  • Railroad Medicare
  • Senior Whole Health
  • TriCare
  • Tufts Health Plan
  • Tufts Medicare Preferred
  • United Health Care
  • Wellpoint
  • WellSense

Ratings & Reviews

4.9 out of 5

420 ratings, 209 reviews

The 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.

How likely would you be to recommend this provider to your family and friends?
Search reviews
  • Reviewed on 2/7/2026

    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

  • Reviewed on 2/8/2026

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

  • Reviewed on 2/6/2026

    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.

  • Reviewed on 2/6/2026

    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.

  • Reviewed on 2/4/2026

    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.

  • Reviewed on 2/5/2026

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

  • Reviewed on 2/1/2026

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

  • Reviewed on 2/1/2026

    Always good to see Dr.Costa

  • Reviewed on 1/31/2026

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

  • Reviewed on 1/29/2026

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

  • Reviewed on 1/29/2026

    very knowledgable and caring

  • Reviewed on 1/29/2026

    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.

  • Reviewed on 1/27/2026

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

  • Reviewed on 1/23/2026

    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.

  • Reviewed on 1/22/2026

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

  • Reviewed on 1/18/2026

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

  • Reviewed on 1/18/2026

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

  • Reviewed on 1/17/2026

    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.

  • Reviewed on 1/14/2026

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

  • Reviewed on 1/14/2026

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

  • Reviewed on 1/14/2026

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

  • Reviewed on 1/12/2026

    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.

  • Reviewed on 1/14/2026

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

  • Reviewed on 1/10/2026

    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.

  • Reviewed on 1/21/2026

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

  • Reviewed on 1/9/2026

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

  • Reviewed on 1/7/2026

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

  • Reviewed on 1/3/2026

    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.

  • Reviewed on 12/30/2025

    Look forward to having him manage my care.

  • Reviewed on 12/24/2025

    Wonderful

  • Reviewed on 12/24/2025

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

  • Reviewed on 12/25/2025

    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

  • Reviewed on 12/24/2025

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

  • Reviewed on 12/24/2025

    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]

  • Reviewed on 12/23/2025

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

  • Reviewed on 12/22/2025

    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

  • Reviewed on 12/20/2025

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

  • Reviewed on 12/20/2025

    Always very thorough exam and discussion.

  • Reviewed on 12/17/2025

    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.

  • Reviewed on 12/19/2025

    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.

  • Reviewed on 12/19/2025

    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.

  • Reviewed on 12/16/2025

    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.

  • Reviewed on 12/16/2025

    Excellent

  • Reviewed on 12/14/2025

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

  • Reviewed on 12/11/2025

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

  • Reviewed on 12/9/2025

    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.

  • Reviewed on 12/7/2025

    A great Dr. and a great staff.

  • Reviewed on 12/7/2025

    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!

  • Reviewed on 12/7/2025

    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.

  • Reviewed on 12/5/2025

    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.

  • Reviewed on 11/30/2025

    Everyone was very professional and polite!!!

  • Reviewed on 11/30/2025

    Dr Costa is a doctor extraordinaire! Under his care, my allergy symptoms are minimal. He is as kind as he is knowledgeable!

  • Reviewed on 11/26/2025

    I have been a patient of Dr. Costa for many years and I trust him explicitly with my asthma and allergy care and treatment.

  • Reviewed on 11/27/2025

    Dr Costa is exceptional. He has been my allergist for 25 years.

  • Reviewed on 11/26/2025

    I've been seeing Dr Costa for many many years and I would highly recommend him to anyone and everyone. He is brilliant and I respect him immensely. His staff are phenomenal as well - always pleasant and super helpful. It's a superb office

  • Reviewed on 11/23/2025

    I've always had a wonderful things to say about Dr. Costa. We've known each other for a while and we have a good rapport. He knows my history and he spot on throughout the entire examination.

  • Reviewed on 11/25/2025

    Dr. Costa is one of the finest doctors that I have ever met. He listens, asks questions, responds to all of my questions with caring and knowledge. He is thorough and considerate. I highly recommend Dr. Costa to anyone who needs an asthma/allergist.

  • Reviewed on 11/24/2025

    I just wanted to say a HUGE thank you...after a primary care visit and two urgent care visits, Dr. Costa was the first person to actually listen to me and have some idea of what the issue was. The inhaler was exactly what I needed. [redacted] He talked to me for 35 minutes in the office. He asked about all my medical history. He did the testing. And even when the testing showed my breathing was ok, he listened/believed me and gave me the inhaler and a back-up option to go on antibiotics if the inhaler didn't work by [redacted]. I felt SO SEEN. I had honestly thought I was just losing my mind and my anxiety was taking a new form or something because I couldn't get enough air for a month, but he didn't just chalk it up to my anxiety and he found a solution. I couldn't be happier!

  • Reviewed on 11/22/2025

    Dr.Costa is a terrific doctor who always does his best for his patients.

  • Reviewed on 11/20/2025

    This physician is outstanding. Very knowledge with excellent communications skills.

  • Reviewed on 11/20/2025

    He is the best.

  • Reviewed on 11/19/2025

    Dr. Costa was intelligent, caring and very easy to talk to. He spent almost an hour with me between gathering information from me in his office to my allergy testing. I was very impressed with his professionalism and knowledge.

  • Reviewed on 11/19/2025

    We are very grateful to have this doctor in our area. He has always quickly responded to our needs when ill. We have seen him for 30 years and referred many friends to him.

  • Reviewed on 11/19/2025

    Dr Costa is the best !!!

  • Reviewed on 11/17/2025

    Dr. Costa is certainly one of the best doctors I have. He is so knowledgeable, patient, thorough, a good listener, and most of all, is pleasant and caring. He is totally focused on you while you're in his office.

  • Reviewed on 11/14/2025

    He is a friendly, caring, and thorough physician.

  • Reviewed on 11/12/2025

    Love this practice...very comfortable and I trust the doctor completely...

  • Reviewed on 11/12/2025

    excellent communication... thoughtful doctors

  • Reviewed on 11/5/2025

    In the long run, I wish I had found Dr. Costa many years before I did. Dr. Costa's expertise would've made my life so much better prior to becoming his patient!

  • Reviewed on 11/4/2025

    I have seen Dr Costa and his staff for 16 years. They are friendly, but processional. You are listened to, and if there is a difference of opinion, all options are discussed.

  • Reviewed on 11/6/2025

    Always kind, attentive, and knowledgeable.

  • Reviewed on 11/5/2025

    Pleasant ,timely, spent enough time to talk with me, explanations were clear & understandable & was very up to date on my medical issues.

  • Reviewed on 11/4/2025

    The best. I've been treating my condition with other allergists for 20 years. I finally found Dr. Costa. I finally got a diagnosis. I'm finally being treated for my condition, not the symptoms of my condition. 10 out of 10.

  • Reviewed on 11/4/2025

    Dr. Costa sat with me for an extended period of time, going through my medical history and discussing my different concerns I voiced and his course of treatment with me. I couldn't have asked for more patient and understanding doctor..

  • Reviewed on 11/2/2025

    Solved my OTC medication issue quickly.

  • Reviewed on 11/3/2025

    I've known Dr. Costa for many years. He took care of my middle son when he was going through allergies. I trust him explicitly. He's a wonderful person, very easy to speak with, and I'm very grateful to be under his care.

  • Reviewed on 11/1/2025

    The provider always listens to any of my concerns. Everyone is courteous and helpful.

  • Reviewed on 11/1/2025

    I left with a great understanding of what the next steps will be and why and I felt he was very engaged with me in understanding my concerns

  • Reviewed on 10/31/2025

    We are very happy with Dr. Costa. He takes time with us and follows up.

  • Reviewed on 10/30/2025

    I felt like Dr. Costa was able to parse out the issues I have which long time challenges that I never quite got clarification on before. He was attentive and provided clarity I was o need of to understand my allergies.

  • Reviewed on 10/29/2025

    Very thorough consult and good listener, and a very pleasant person!

  • Reviewed on 10/29/2025

    Dr. John Costa is the best. After many years he always is teaching me something. He cares about me.

  • Reviewed on 10/27/2025

    Dr. Costa has helped me immensely and taken a genuine interest in my health v

  • Reviewed on 10/27/2025

    Excellent care!!!

  • Reviewed on 10/26/2025

    Dr. Costa has always been patient and thoughtful about my issues. His questions and my interactions with him always indicate thorough knowledge of my medical issues

  • Reviewed on 10/23/2025

    Dr. Costa is always professional, informative and personable during my appointments.

  • Reviewed on 10/20/2025

    I was very pleasantly surprised in a good way with my visit with Dr. Costa. Very precise.

  • Reviewed on 10/6/2025

    Great experience.

  • Reviewed on 10/5/2025

    Excellent caring doctor, extremely knowledgeable and empathetic

  • Reviewed on 10/5/2025

    Dr. Costa does a great job reviewing my records and asking me all pertinent questions about my health. He cares a lot about me as his patient ?

  • Reviewed on 10/5/2025

    Dr Costa is an excellent physician and has provided very good care to me

  • Reviewed on 10/1/2025

    A very good dr.

  • Reviewed on 9/29/2025

    Great office Great provider

  • Reviewed on 9/30/2025

    I feel like I don't have a patient/doctor relationship. Dr. John Costa is a very down-to-earth person whom I'm very comfortable with. I feel like I'm just chatting with an old friend. I actually told him that I'll be devastated if and when retires. No time soon. WHEW!

  • Reviewed on 9/28/2025

    Dr. Costa is so professional. He listens and addresses all concerns. He has always been so right on in my care and has improved my quality of life tremendously. I have referred many friends who all agree

  • Reviewed on 9/30/2025

    Great staff, and I am grateful to Dr Costa

  • Reviewed on 9/25/2025

    Dr. Costa was thorough, spent time to explain as well as answered all my questions. Definitely an extremely positive experience. Wonderful doctor, thank you so much for your time!, Staff were excellent & very respectful.

  • Reviewed on 9/23/2025

    Great doctor! Very efficient and friendly office staff!

  • Reviewed on 9/26/2025

    I wish this office could be my primary care. It runs so well. Everyone is so polite, pleasant, gives you enough information. Dr. COSTA is very informative. He listens. He spends time with you. It's a great office and a great practice. My whole family goes there.

  • Reviewed on 9/22/2025

    Dr.Costa is in my experience the most professional expert that I see. At my age and stage of wellness I see numerous doctors and experts on everything from neurology to orthopedic surgeons.

  • Reviewed on 9/21/2025

    Best doctor ever!! He listens, is compassionate, and remembers. So knowledgeable about medicine-far beyond just allergies.

  • Reviewed on 9/21/2025

    Professional kind and caring

  • Reviewed on 9/21/2025

    Dr Costa WAs probably my best experience with any Doctor in the medical field.

  • Reviewed on 9/18/2025

    Dr Costa is very knowledgeable about my medical condition

  • Reviewed on 9/18/2025

    Dr Costa was absolutely amazing! He knew all the details of my recent hospitalization, took a detailed history, answered all questions and formulated a plan. I have never had a physician spend so much time with me and show genuine concern.

  • Reviewed on 9/17/2025

    He is very easy to communicate with, which is nice. He explains things without sounding condescending, also nice. Overall I'm very impressed with the practice and I'm glad I was referred to the office.

  • Reviewed on 9/17/2025

    Dr Costa is the most caring and knowledgeable provider I have. He always has solutions that are practical and effective. His staff is so kind and caring. Just an amazing practice and providers.

  • Reviewed on 9/18/2025

    Dr. Costa is always very thorough, attentive and personable in our visits. I feel fortunate to have him as my asthma doctor and have great trust in his care.

  • Reviewed on 9/17/2025

    Dr costa and his staff were great.

  • Reviewed on 9/15/2025

    He was personable, competent and efficient. I felt I was talking to a person who cared about my condition and was very qualified to respond with the correct diagnostic plan. He was very easy to talk with.

  • Reviewed on 9/17/2025

    Excellent doctor

  • Reviewed on 9/14/2025

    Extremely pleased to be under Dr. Costa's care. He is probably the best allergist & immunologist I have ever worked with in my long history of having allergy related issues. His office & other medical staff are very professional and excellent to work with.

  • Reviewed on 9/14/2025

    Just the best experience, as always.

  • Reviewed on 9/7/2025

    Dr. Costa is extremely knowledgeable and competent. He is able to explain medical information so it is very easy to understand. He respects your opinion and doesn't mind discussing different aspects of your care. As a retired medical professional, I would highly recommend him to anyone in need of an asthma specialist.

  • Reviewed on 9/4/2025

    It was good

  • Reviewed on 9/5/2025

    Fine

  • Reviewed on 8/29/2025

    Dr. Costa is amazing. He listens. He knows everything about your care. He knows all of your prior tests, even if it wasn't with him. He's just very knowledgeable and does a fantastic job. I absolutely love him.

  • Reviewed on 8/27/2025

    I have been seeing Dr. Costa for over 26 years and I am extremely happy with him

  • Reviewed on 8/25/2025

    Dr Costa is my favorite medical provider. He is consistently kind, compassionate, thorough and helpful. I wish there were more medical providers with his skills and compassion.

  • Reviewed on 8/25/2025

    Dr Costa has always been a thorough, fantastic doctor who gives a comprehensive exam and listens to my concerns and offers advice that makes sense for my condition.

  • Reviewed on 8/28/2025

    I have been seeing Dr. Costa for more than 30 years. I think he is an excellent doctor.

  • Reviewed on 8/23/2025

    Dr Costa is very professional, knowledgeable and very thorough. He has helped me substantially with my issues.

  • Reviewed on 8/23/2025

    Dr Costa is simply the best. He has helped me in navigating my allergies & asthma, leading to everything being mostly controlled. Very respectful and caring doctor, glad to be a patient of his.

  • Reviewed on 8/21/2025

    Dr. Costa is one of my favorite doctors. Ever. He listens. He helped my chronic coughs basically disappear. And he ALWAYS runs on time. He is also the only person in the world who complements my nose, which makes me laugh and has become a little joke when I get home from my appointment. One more thing: you asked about nurses. I probably just saw medical assistants and not really a nurse. but they were excellent and my responses still hold true.

  • Reviewed on 8/21/2025

    Excellent

  • Reviewed on 8/17/2025

    Always genuinely concerned with providing best possible care. Extremely thorough.

  • Reviewed on 8/17/2025

    Thoughtful, thorough and informed.

  • Reviewed on 8/16/2025

    Dr. Costa listened to everything I had to say. He knew my past medical history and wrote down everything I said. He's was very thorough with my medical history concerning my current condition. He was very professional. We talked about my future treatment and what protocols I needed to take until my next visit. I totally trust him with my health concerns.

  • Reviewed on 8/16/2025

    It is excellent

  • Reviewed on 8/14/2025

    Dr. Costa spent a lot of time with me for my 1st visit which I really appreciated and did a great job explaining a care plan for me that made sense. I could tell he cares about his patients as he listened to and addressed all my questions in a way that I didn't feel rushed. I'm happy my PCP referred me to Dr. Costa.

  • Reviewed on 8/11/2025

    I wish all my other doctor's offices ran this efficiently and in such a caring manner.

  • Reviewed on 8/15/2025

    Exemplary Dr. Costa is the very best. He spends time,listens to my questions and really cares about all his patients. He is exemplary doctor.

  • Reviewed on 8/16/2025

    Dr. Costa is the very best. I have been in his care for 20 years and I trust him completely. He really listens, and carefully considers your concerns. If something isn't working, he finds alternatives. I have recommended him to many people including my husband and my brother. They also rave about him.

  • Reviewed on 8/11/2025

    My care is always excellent from this provider.

  • Reviewed on 8/10/2025

    Dr. Costa is a caring professional

  • Reviewed on 8/6/2025

    Professional and personable in the best ways.

  • Reviewed on 8/6/2025

    Been seeing Dr Costa for years & very impressed with his manners, his caring & always available when needed with questions or need to be seen.

  • Reviewed on 8/4/2025

    Dr. Costa is by far an exemplary doctor in all respects... his knowledge, his ability to explain things easily for me to understand, his caring manner when conversing with you, and not feeling rushed. I would highly recommend him (and have) to anyone who needs an allergist!!

  • Reviewed on 8/4/2025

    Top notch. Wonderful patient/provider interaction!

  • Reviewed on 8/2/2025

    I have been going to Dr. John Costa for years and he always provides the best care possible. He was able to prescribe a sinus rinse that cleared up my on-going sinus infections. I actually recommend Dr. Costa to anyone experiencing sinus/allergy symptoms.

  • Reviewed on 7/31/2025

    I have seen this doctor for 16 years and I have never had an issue. It's always been a positive experience.

  • Reviewed on 7/30/2025

    We have been trying to figure this out for years and with one visit with Dr. Costa we now know what it was and what to do.

  • Reviewed on 7/30/2025

    Very good experience

  • Reviewed on 7/30/2025

    Dr costa is the best

  • Reviewed on 7/27/2025

    Always look forward to seeing Dr. Costa. He is a lovely and brilliant doctor. Always a pleasure to see him.

  • Reviewed on 7/27/2025

    Everyone was so kind, caring, and professional

  • Reviewed on 7/24/2025

    Dr.Costa was absolutely fabulous. He listened to everything I had to say and took everything into consideration to come up with a plan for me and he was fabulous. He was very knowledgeable and I will definitely be recommending people to go see his office and all his nurses were excellent too and the lady at the front desk. Overall, their office was awesome and I had a great experience there.

  • Reviewed on 7/17/2025

    He is always very professional and explains things well

  • Reviewed on 7/14/2025

    Highly value his expertise and engaging demeanor. I was pleased to recently have my wife added to his practice.

  • Reviewed on 7/2/2025

    He spent a lot of time with me for this initial appointment. Detailed questioning and explanations.

  • Reviewed on 7/1/2025

    Dr. Costa and staff are great individuals...very knowlegable and caring.

  • Reviewed on 7/2/2025

    He's the best I wouldn't change him for nothing in the world

  • Reviewed on 6/29/2025

    Costa all ways thinking what I needed.

  • Reviewed on 6/29/2025

    Dr. Costa is an excellent physician. He basically saved my life.

  • Reviewed on 6/29/2025

    The visit was excellent and I received the information I needed.

  • Reviewed on 6/28/2025

    I have been a patient of Dr. John Costa for over 30 years and I have great respect for his medical expertise. I have recommended him to several friends.

  • Reviewed on 6/28/2025

    Dr. Costa is, and always has been professional, knowledgeable, and courteous. I've been a patient for many years, I wouldn't go anywhere else for my asthma and allergy care.

  • Reviewed on 6/23/2025

    Dr Costa has taken good care of me for many years. He has helped me tremendously to control my allergies and asthma. Very caring doctor

  • Reviewed on 6/19/2025

    I wish that all medical services were as good as Dr. Costa's group.

  • Reviewed on 6/18/2025

    Dr Costa and all his staff are wonderful. I would refer his office to anyone who needs his services

  • Reviewed on 6/18/2025

    Good experience.

  • Reviewed on 6/16/2025

    Dr.Costa is a very good, knowledgeable and professional provider.

  • Reviewed on 6/15/2025

    Excellent first visit. Was very relieved to have Dr Costa accept me into his practice.

  • Reviewed on 6/15/2025

    always the best

  • Reviewed on 6/12/2025

    Dr Costa is very caring. He has helped me get my asthma and bronchitis under control.

  • Reviewed on 6/11/2025

    Dr. Costa is always cordial and thorough in his exam and questions/instructions for me. Nurses and office staff are great!

  • Reviewed on 6/11/2025

    Dr. Costa was incredible. It was my first visit with him. When he walked in the room, he clearly had spent a lot of time reading my chart, knew much about me, and had many insights about my conditions and my treatment. He was a terrific listener, asked great questions and was engaging. In the end, it was clear that he understood much about me. The treatment he prescribed seems like it is perfect. It's been less than a week, but for the first time in 20 years, I'm not congested. And I can breathe fine through my nose.

  • Reviewed on 6/12/2025

    As always,Dr. Costa was knowledgeable and professional.

  • Reviewed on 6/11/2025

    Dr. Costa is a wonderful doctor. He listens and explains everything and has never rushed me. He's a very caring doctor and that's why I chose his practice. Everyone in his office is awesome ?

  • Reviewed on 6/17/2025

    Knowledgeable, thorough, listens and good advice.

  • Reviewed on 6/5/2025

    Exceptional care, confidence

  • Reviewed on 6/6/2025

    Excellent doctor.

  • Reviewed on 6/5/2025

    Eryfriendly and thoroughg

  • Reviewed on 5/26/2025

    He was so good about listening carefully and really cared.

  • Reviewed on 5/26/2025

    I have a long standing relationship with Dr. Costa and will only change when he is no longer available.

  • Reviewed on 5/22/2025

    I have a fairly complicated diagnosis and have been seeing Dr. Costa for about 6 years now. [redacted] And I just can't say enough good things about him. He is very practical. He is very thoughtful. He is very efficient. I just feel very lucky that I found him and the office. The office I can't say enough things about how organized they are and how quickly they get back to you. They are just great across the board. So yeah, I couldn't ask for more. I'm very appreciative. Thank you.

  • Reviewed on 5/21/2025

    Dr Costa and his staff were professional, personable and ensure that I received the best treatment and care. The highest recommendation to anyone who truly needs the best care specialist for asthma and allergies and more. The Best.

  • Reviewed on 5/21/2025

    I really appreciate Dr. Costa and his entire team. They are amazing and you can tell they care about their patients.

  • Reviewed on 5/21/2025

    I have seen Dr. Costa for many years and each visit visit he always gives me a bit of medical advise to improve my well being. Dr. Costa is the true meaning of a doctor that cares deeply for his patients. I can understand why he so beloved by his patients and staff

  • Reviewed on 5/21/2025

    his nurses are really nice and some of the best at Brigham

  • Reviewed on 5/21/2025

    I have been Dr Costa's patient for 25 years. That should be self explanatory!

  • Reviewed on 5/19/2025

    Dr. Costa should be cloned. He is the perfect example of what a physician should be. He listens, he repeats back what he has heard to clarify. He is serious, funny, knowledgeable, kind and caring. He is a terrific diagnosition. He is a better detective than Sherlock Holmes.

  • Reviewed on 5/20/2025

    Dr. Costa is a terrific MD. I trust my care with him.

  • Reviewed on 5/18/2025

    Dr. Costa is the best . He always listens to what I have to say and provides the best feedback and answers all my questions

  • Reviewed on 5/14/2025

    Dr. Costa was great.... Good listener and communicator.

  • Reviewed on 5/14/2025

    Dr. Costa is one of the best doctors I've ever been to. It's always a wonderful experience. He's fantastic. And I don't have anything else to say.

  • Reviewed on 5/11/2025

    He has been excellent for me for the 4 years that I have been fortunate enough to have him as my allergist. He is the only doctor who finally solved my problems.

  • Reviewed on 5/10/2025

    Dr. Costa is very caring and listens to my concerns. He has helped me with my medical issues

  • Reviewed on 5/7/2025

    As usual, Dr. Costa showed great care about my health and listened to me attentively.

  • Reviewed on 5/7/2025

    I have the greatest respect for Dr. Costa and consider him an important and integral member of my medical team. He is professional, knowledgeable, friendly, and direct.

  • Reviewed on 5/7/2025

    Extremely thorough and informative experience. This office ran like a well-oiled machine. I wish they were all this personal.

  • Reviewed on 5/7/2025

    Dr. Costa very knowledgeable and easy to talk to..he listens and not afraid to let you know what you can do to better help youself.

  • Reviewed on 5/7/2025

    He is professional and always thorough. Always courteous

  • Reviewed on 5/3/2025

    Dr Costa is excellent!

  • Reviewed on 5/2/2025

    Dr Costa is brilliant. He has helped me with my bronchitis which is gone now and now we are working on my sinuses. It feels so good to be able to breathe again. Thank you.

  • Reviewed on 4/24/2025

    I was very impressed with Dr. Costa's approach, how personable he was, and how he asked me questions to find out what might be the cause for my possible allergies. Thank you.

  • Reviewed on 4/18/2025

    All around excellent. Spent a lot of time and was just very professional.

  • Reviewed on 4/16/2025

    Excellent. I can't say enough good. Dr costa had one of the girls show me how to use epipen for my granddaughter who has nut allergy. After she did I felt very confident in administering if need to. Thank you and love that office

  • Reviewed on 4/16/2025

    Dr. Costa is extraordinary! He is very competent and up to date, patient centric... listens and addresses all questions and concerns, very practical in terms of how impacts my daily life, and very compassionate.... The best physician of my lifetime! He is a model for all physicians!

  • Reviewed on 4/18/2025

    Have been seeing this care provider for many years and have confidence in his recommendations and advice.