rater8 Verified Patient
Sep-2026
We had a great experience with Dr Cahoy. He was so great with my son - spoke right to him on his level so he would understand. I would absolutely use him again if needed
Patient Submitted Review
Mar-2026
All the staff is very friendly, but we especially appreciated the time and attention NP Patisteas gave us during the appointment! She asked my son (12 yrs old) about his goals for recovery & return to training and developed his treatment plan accordingly. Highly recommended!Patient Submitted Review
Feb-2026
(Translated by Google) I am very pleased with the service; the attention given to my son and me was excellent. I felt comfortable with the questions and answers I received from Dr. Cahoy. (Original) Estoy muy complacida con el servicio muy buena atención asia mi hijo y a mi me isieron sentir cómoda con las preguntas y respuestas que reviví de parte del doctor CahoyPatient Submitted Review
Feb-2026
Dr. Cahoy provided exceptional care to my daughter who was diagnosed with scoliosis. He was on time, caring and professional. He toook his time explaining the treatment plan and we never felt rushed out of the office. The office seemed well managed and scheduling was easy.Patient Submitted Review
Feb-2026
The office staff, Nick, the nurses, medical assistants, PA’s and of course Dr. Cahoy are professional, thorough, kind, child-friendly and provide superior care. We always feel heard at each appointment. The are an awesome team!Patient Submitted Review
Dec-2025
I’m a physician and a mom and have brought my 11 year old here for an orthopedic condition. Dr. Cahoy has been great. He will be a straight shooter with you (doesn’t sugar coat anything, but I prefer that!). Most importantly, he will be a thoughtful clinician the entire way and really strives for the best possible outcomes. His staff are also great- Erin has been especially fantastic to work with. They are all incredibly efficient (yet not rushed) as well- I’ve been there several times and have never been kept waiting. Overall I think this is a great pediatric orthopedic practice that we are lucky to have in Concord.Patient Submitted Review
May-2024
Amaizing doctor and very kind person. He treated my daughter, she broke her hand so badly,. He quickky responded to the emergency call and worked with all the stuff members to fix my daughter hand - she was in such a bad state, she had tto be knocked- out and they all worked on her hand. For the whole year we had to follow up with Dr. Cohen on weekly, bi-weekly, and monthly visits until my daughter's hand was fully repaired. Very professional doctor and very kind person. We appreciate so much your help and care Dr Cahoy!Patient Submitted Review
Apr-2023
Dr Cahoy, while predominantly a pediatrics ortho surgeon, was outstanding! Due to the emergency nature of my wife's ankle surgery, we could not have asked for a better draw than his expertise, approach and care. From start to finish, his attentiveness and execution was amazing. His staff at Ortho Affiliates has also been excellent! Could not give a stronger recommendation for ortho care if needed! Very grateful to have had Dr Cahoy oversee my wife's care and surgery.Patient Submitted Review
Mar-2023
We met Dr. Cahoy when my 9 year old was randomly diagnosed with potential scoliosis at a routine physical exam. We were referred to Dr. Cahoy and at the Xray found that it was a severe left thoracic curve. Dr.Cahoy suggested we explore the WCR brace and potentially stop the curve from worsening before considering surgery as an option. Dr. Cahoy is extremely patient and kind in answering all our questions. He explains everything very thoroughly , with data and also has a wonderful way of working with kids and their nervous parents. Every question, no matter how small or silly was answered patiently and thoroughly. The whole team is amazing, starting with Glenn Paul for the brace , Mary Evans for Schroth therapy , Jen for scheduling to the entire staff, they are awesome!! They will do everything possible to help you have the best outcome. We are so grateful that we were able to meet with him and the team at the right time and ended up with very good results. I cannot recommend Dr. Cahoy enough to anyone that is looking for an solution to treat scoliosis.Patient Submitted Review
Oct-2022
Dr. Cahoy gives you all the facts to make best decision for your treatment plan. Practice is very well run and efficient. NP, nurse, staff and all very friendly, professional and caring.rater8 Verified Patient
Sep-2022
Dr. Cahoy was very knowledgeable and communicated his thoughts in a clear and concise manner. He has a great demeanor and made an immediate connection with my daughter. Excellent choice!rater8 Verified Patient
Sep-2022
This may have been the best experience we’ve ever had at a physician’s office. Dr. Cahoy had my daughter’s stress fracture fully examined, evaluated, Xray’ed, and a plan for follow-up care in place in under and hour. He and his team were professional and efficient without us feeling rushed. Thank you for the excellent care!Patient Submitted Review
Sep-2022
Professional, knowledgeable and willing to dialogue about nuanced questions related to changes in therapy over time. Approaches student-athlete as responsible person in charge of her own decisions. Excellent and rare.Patient Submitted Review
Aug-2022
Dr. John Cahoy is FANTASTIC. My son broke both bones in his arm and throughout the entire process (from the ER waiting room to the operating room to the follow-up appointments), Dr. Cahoy was always available and took the time to answer any questions my son and I had. He has a wonderful bedside manner, and his staff is just as fantastic.Patient Submitted Review
May-2022
Dr Cahoy and his staff were amazing throughout the care of my daughter who was treated for scoliosis. As a Physical Therapist who specializes in spine care, I did extensive research and asked colleagues who would be the best in facilitating the best care for my daughter. Dr Cahoy listed to all of our questions, addressed all concerns, and was an knowledgeable facilitator amongst a great team of providers. I highly recommend him and his team for the best adolescent scoliosis care.Patient Submitted Review
Oct-2021
Dr. Cahoy was so concerning, understanding, and professional with my 9 year old daughter with a double fracture in her leg. He explained things to her so she understood to the fullest and was so patient when she would be nervous and had many questions to ask. His staff is amazing as well, very caring and patient when little ones get nervous about what they are experiencing. I highly recommend Dr. Cahoy.Patient Submitted Review
Oct-2021
Dr. Cahoy was great dealing with my son's broken arm. He clearly explained the break and his plan to fix it. He explained every step and answered all of our questions. He has a great personality and made my son feel very confortable. I would highly recommend Dr. Cahoy!Patient Submitted Review
Jun-2021
Dr. Cahoy treated my child and was great! He was always calm, relayed scary information in a clear way that even my 10-year-old could understand, and answered our questions thoroughly and respectfully. My child's injury is better and I would definitely go to Dr. Cahoy again (though I hope I don't have to :-)Patient Submitted Review
May-2021
I cannot recommend Dr. Cahoy highly enough! I had immediate confidence in him the moment I met him and I remained extremely impressed by his expertise throughout the process of healing my broken wrist. I appreciated the time he took to explain what my options were and to update me on my progress during each visit. He respected and honored my preferences throughout the process. I felt well informed every step of the way. In addition, he was extremely personable and a pleasure to speak with.Patient Submitted Review
May-2021
Dr. Cahoy was wonderful with our daughter who broke her leg in 2 places a few months ago. His calm and thorough way of explaining everything put her at ease and made the whole healing experience a positive one. Highly recommend!!Patient Submitted Review
Apr-2021
We first met Dr. Cahoy and his NP Logan when our newborn had bilateral hip dysplasia. She was in a Pavlock splint for months, that was adjusted frequently. We had an amazing experience with this hip dysplasia team. They answered all of these new anxious parents questions and concerns, they were patient and told us upfront the plan and the whys. I would highly recommend them, the westford office staff was also so helpful and considerate.Patient Submitted Review
Mar-2021
Amazing team, I am a nurse and did a lot of research to find the perfect team that aligns with our goals. We are beyond thrilled we switched care here and are having great results! Can’t say enough good things about Dr Cahoy and his scoliosis team (Glenn Hollie and Jen!)Patient Submitted Review
Dec-2020
Dr. Cahoy has a very pragmatic approach that I appreciate. I was referred to him when I returned to Massachusetts following a devastating ski injury and surgeries to my tibea plateau. When other doctors were recommending caution, he was very clear that he wasn't ever going to tell me what I could or couldn't do: but rather encouraged me to listen to my body and go ahead and do the activities that brought me joy and allowed me to live as normally as I could. Then he'd partner with me on ways to manage pain or deal with any impact that those choices might have. I appreciate that!Patient Submitted Review
Nov-2020
We were very happy to have Dr. Cahoy care for my son in the ER with a broken arm. He was very informative and nice when talking with me about needed to be done. And even provided me and my son with his cellphone number, just in case we had any questions or concerns. Highly recommend!Patient Submitted Review
Oct-2020
Great experience with Dr. Cahoy in the ER with my pre-teen’s broken arm. He was great at explaining the surgery details, answering questions, and assuring my son that everything would be okay. He is a calm and knowledgeable pediatric orthopedist who we definitely recommend.Patient Submitted Review
Jun-2020
Not your average Orthopedist. - Staff and Dr. Cahoy (rhymes with Ahoy) were very friendly. Made my child feel very comfortable (Myself as well). Super informative and UNRUSHED!!! Took time, explained well, and were timely in all of our appointments. Clearly and expert and has astute clinical judgement and presence. He helped us in an emergency which was great, but you should select him for your care if you have that option. We will. Ours was a Tuesday suppertime biking accident with a slipped growth plate (AKA Broken bone) in my sons wrist. He was in pain but tolerable to drive him with his wrist packed in ice to the Emerson Hospital Emergency Room. Dr. Cahoy was not the Orthopedist on call that evening but in addition to being able to work with adults, he was also a Pediatric Specialist. After we got a diagnosis from the ER Team (took about an hour) he was called and was there in about 90 minutes. He set the bone and applied the cast. Gave us his cell phone if we had any questions to contact him! Followup was a breeze over the next few weeks. Can't praise Dr. Cahoy enough. Excellent!Patient Submitted Review
Jun-2020
I have been working with Dr. Cahoy and his team for the past 6 months. They have been amazing – incredibly knowledgeable, kind and supportive. After exploring surgical and non-surgical solutions to my broken Tibia/Fibula, I elected to go with Dr. Cahoy and the non-surgical option which I understand is not necessarily the traditional solution for adult breaks. Dr. Cahoy explained the process thoroughly and every milestone came exactly as he described. In addition, Dr. Cahoy and his team have always been available and responsive when I have had a question or concern. While the recovery has taken a bit longer than the surgical route, I am thrilled with the results and happy not to have the pin in my leg. I would highly recommend Dr. Cahoy for his orthopedic knowledge and skills. He and his team are also super nice people which makes such a difference when you are recovering from an injury.
Patient Submitted Review
Jun-2020
My son fractured his elbow. Dr. Cahoy was able to see him right before the office closed. I was very impressed right away. He had all the materials ready to make my son a temporary splint (with plaster) until he could get his custom-tailored splint. He laid out a detailed plan, followed up with x-rays, visits, and PT. He also spoke to my son about the rationale behind the timing and how and when he could return to sports. He knows his stuff! My son's elbow healed really well.Patient Submitted Review
May-2020
Dr.Cahoy came highly recommended from our pediatrician when our daughter was diagnosed with scoliosis. He is an awesome doctor who took really good care of my daughter through her scoliosis journey. We were extremely nervous and had never heard of scoliosis before. Right from the very first time, he made us feel comfortable. He is very knowledgeable , extremely through in his follow up, very approachable and answers all our questions patiently(we have a lot of them). She was a very tough candidate for bracing because of a steep thoracic curve, but Dr.Cahoy took the non-surgical approach to treating scoliosis and my daughter has excellent outcome. We love his team of Orthotists and PTs as well (Mary, Holly, Jen and Glen)We can't thank Dr. Cahoy enough for what he has done for our family!Patient Submitted Review
Nov-2019
My 11 year old son broke his dominant wrist (radius) during a soccer game on a Saturday afternoon. Dr. Cahoy was not even on call but came to Emerson within 90 minutes of the ER doctor alerting him. He was kind and comforting to my son. He was positive and informative to my husband and me. He was great on each follow up visit answering any and all of our questions and the path to recovery was very well laid out for us. I highly recommend him!Patient Submitted Review
Sep-2017
I am a tough patient - have worked in the orthopedics business for a long time. My experience with John was exceptional. Great surgeon, great bedside manner, great follow-up, great relationship with his PT.Patient Submitted Review
May-2017
Dr. Cahoy recently treated my son's fractured arm. I find him knowledgeable, meticulous, responsive, and very approachable. He spent a lot of time explaining the options and procedures to us, as well as answering my son's questions and concerns. His care exceeds our expectations in every way.Patient Submitted Review
Jul-2016
Dr. Cahoy took great care of my son when he broke his arm. He was patient and very approachable. My son had an excellent outcome and I can't thank Dr. Cahoy enough!
Patient Submitted Review
Sep-2026
I was so impressed with how easily Dr. Cahoy connected with my granddaughter. His warm, gentle, and upbeat manner immediately put her at ease and made what could have been an intimidating experience feel comfortable and reassuring. We truly appreciated the patience, kindness, and care shown throughout the visit.