Dr. John Joseph Brennan, MD

I am beyond grateful for the exceptional care I received from Dr. Brennan following a complex shoulder surgery. Before the procedure, I was grappling with significant pain and limited mobility, which severely impacted my daily life. Dr. Brennan’s expertise and precision during the surgery have been nothing short of transformative. Post-surgery, not only have I experienced remarkable improvements in shoulder mobility, but even my physical therapists have been astonished by the rapid progress and range of motion I’ve regained. Their consistent feedback highlights the superior quality of Dr. Brennan’s surgical skills. Dr. Brennan is a consummate professional who combines advanced surgical techniques with a compassionate approach to patient care. His dedication to excellence and patient well-being is evident in every aspect of his practice. For anyone seeking a highly skilled orthopedic surgeon specializing in shoulder procedures, I wholeheartedly recommend Dr. Brennan. His… unparalleled expertise has profoundly improved my quality of life, and I am confident he can do the same for others in need ~R. Corney-Carlsbad, CA

Dr Brennan is a rotator cuff master. He has fixed both of my rotator cuffs and many of my friends shoulders as well. I'm not exaggerating when I say that all of our shoulders are perfect.

Dear doctor Brennan, Just writing you to tell you that I’m feeling much better since the last time I saw you. The medications I believe have finally kicked in. I never went for the PT but I definitely was not a couch potato. Please allow me to thank you once again, and to say again, that Joann and I are blessed to have you!!!l Sincerely Vinnie LoBianco P.S. please Enlarge this E-Mail and hang it up in you office.

Dr. Brennan is an excellent surgeon, very caring person who really wants to help his patients. I highly recommend him for any orthopedic needs.

I recently saw Dr.John Brennan in his Southampton office after a recent shoulder injury and was accommodated almost immediately by his office to seek medical attention right before the beginning this memorial day weekend!!!! I called last minute and the receptionist told me to come in ASAP as Dr.Brennans last patient was at 2pm. Long story short he stayed late waitting for me to arrive as I was stuck in holiday traffic just to address my shoulder injury and to educate me as to what happened and how we can help heal it moving forward. The care,dedication, & peace of mind him and his office bought to me will never be forgotten. Dr.Brennan truly cares about his patients and is extremely knowledgeable in his field. Thankyou is an understatement. He was able to fix my shoulder and alleviate the tremendous pain I was in. He also explained to me what I did and recommended a treatment plan that I can follow and understand !!!

Knowledgeable with a confident ease to establish doctor/patient trust.

I'm a middle aged woman who has had my share of medical issues so I have seen a number of doctors in my life. I saw Dr Brennan for my shoulder and he went into such an in depth explanation of my rotator cuff problem and what we can do about it that I had to go online and leave a review. I've never come across a doctor where I left the office so pleased.

Goes above and beyond.

Intelligent and caring doctor. He is great at explaining things to patients. He seems to try to avoid surgery when possible.

Dr. Brennan did my total hip replacement. I was out of the hospital in e days. I was off the walker in a week and tossed the cane in two weeks. Dr. Brennan is skilled. He is friendly and down to earth. He takes as much time with you as you want. He never rushes.... a really good doctor.