John Brennan, MD, received his medical degree from SUNY Health Science Center at Brooklyn after attending college at St. Louis University. He then performed a surgical internship at St. Lukes-Roosevel… Read more ›
No pain after 3 days of surgery and recovery was the best I ever had because of the advance technology now days. Don't be afraid. Would you rather be in pain the rest of your life? I didn't. Now I can enjoy my life. Sleep better to. The hospital stay was very good they treated me very well.…
| University | Degree | Focus | Graduated |
|---|---|---|---|
| SUNY Health Science Center at Brooklyn - NY | Doctorate | M.D. | 1993 |
| Institution | Focus | Year |
|---|---|---|
| Internship - St Lukes Roosevelt Hospital Center | Ortophedics | Not Specified |
| Residency - St Lukes Roosevelt Hospital Center | Ortophedics | Not Specified |
| Certification | Cert. Body | Year |
|---|---|---|
| Orthopaedic Surgery | Orthopaedic Surgery | Not Specified |
| Role | Organization | Time |
|---|---|---|
| Professional Member | American Association of Hip and Knee Surgeons | Present |
| Professional Member | Medical Society of the State of New York | Present |
| Professional Member | Suffolk County Medical Society | Present |
| Professional Member | Irish-American Orthopedic Society | Present |
John J Brennan, MD has not yet indicated the hospitals that he is affiliated with.
Years In Practice: 31 (started in 1993)
Accepts New Patients: Yes
Brennan specializes in treating the following types of patients:
Medical Philosophy: Traditional Medicine
More info: We accept Cash, Check, VISA, Mastercard, American Express and Discover.
Offers Financing/Payment Plans?: Yes
Bills on a Sliding Scale?: Unknown
Orthopedic Associates of Long Island - East Setauket - 6 Technology Drive Suite 100
“Shoulder was a breeze surgery and recovery”
No pain after 3 days of surgery and recovery was the best I ever had because of the advance technology now days. Don't be afraid. Would you rather be in pain the rest of your life? I didn't. Now I can enjoy my life. Sleep better to. The hospital stay was very good they treated me very well.
Orthopedic Associates of Long Island - Southampton - 325 Meeting House Lane Building One
dr. brennan is a wonderful surgeon and always has time for me in office
“left shoulder rtc repair”
dr. brennan is a wonderful surgeon and always has time for me in office
Orthopedic Associates of Long Island - East Setauket - 6 Technology Drive Suite 100
I had never had any type of surgery prior to needing this hip replacement. From the beginning Dr Brennan explained what was happening, causes and all options available. I started with cortisone shots then gel injections before proceeding with the surgery. I was Extremely anxious. Dr. Brennan and staff were patient with me, answering all my questions, again and again. All staff at St. Charles were professional and kind. very thorough in all explanations and information.
“excellent”
I had never had any type of surgery prior to needing this hip replacement. From the beginning Dr Brennan explained what was happening, causes and all options available. I started with cortisone shots then gel injections before proceeding with the surgery. I was Extremely anxious. Dr. Brennan and staff were patient with me, answering all my questions, again and again. All staff at St. Charles were professional and kind. very thorough in all explanations and information.
Orthopedic Associates of Long Island - East Setauket - 6 Technology Drive Suite 100
My mother had a bad fall and broke her femur which required emergency surgery. Dr Brennan was on call when she was rushed to the ER. From the first moment, I met him I was immediately impressed by his wonderful bedside manners, postivity and care for my mom. He took the time out to address any questions, concerns we had before, after and at the follow-up appts. All in all, Dr Brennan is a wonderful doctor and highly recommend him!
“Excellent Doctor”
Orthopedic Associates of Long Island - Riverhead - 74 Commerce Drive Suite 4
dr.brennan did a wonderful job repairing my rotator cuff tear. five months out and feels great
“rotator cuff tear”
dr.brennan did a wonderful job repairing my rotator cuff tear. five months out and feels great
Orthopedic Associates of Long Island - Riverhead - 74 Commerce Drive Suite 4
I am a very active 58 yo. Injured my knee. Was worried if surgery would make a bad situation worse. Did my research and found Dr Brennan. Can not believe how simple the process was. Seamless and flawless. Doctor Brennan, his staff and St Charles Hospital did a wonderful job for me. I only wished I had come to him sooner. One week after surgery I am pain free and doing my thing. Can not say enough about my positive experience.
“Great Experience with my Knee surgery”
I am a very active 58 yo. Injured my knee. Was worried if surgery would make a bad situation worse. Did my research and found Dr Brennan. Can not believe how simple the process was. Seamless and flawless. Doctor Brennan, his staff and St Charles Hospital did a wonderful job for me. I only wished I had come to him sooner. One week after surgery I am pain free and doing my thing. Can not say enough about my positive experience.
Orthopedic Associates of Long Island - East Setauket - 6 Technology Drive Suite 100
very happy
“great doc”
very happy
Orthopedic Associates of Long Island - Southampton - 325 Meeting House Lane Building One
had rotator cuff repair and recovered so much faster than i thought i would. Very happy!
“saved my shoulder”
had rotator cuff repair and recovered so much faster than i thought i would. Very happy!
Orthopedic Associates of Long Island - East Setauket - 6 Technology Drive Suite 100
Dr Brennan was patient, empathetic, accurate in his diagnosis, and overall, the best doctor I have seen. I now have a new shoulder.
“Great Doctor”
Dr Brennan was patient, empathetic, accurate in his diagnosis, and overall, the best doctor I have seen. I now have a new shoulder.
Orthopedic Associates of Long Island - Riverhead - 74 Commerce Drive Suite 4
This was my second procedure with Dr. Brennan and i have never felt better. I look forward to getting my left shoulder done. Excellent bedside manner and i could not be happier with the results. Changed my life...
“excellent .... Cant wait for the left shoulder”
This was my second procedure with Dr. Brennan and i have never felt better. I look forward to getting my left shoulder done. Excellent bedside manner and i could not be happier with the results. Changed my life...
Orthopedic Associates of Long Island - East Setauket - 6 Technology Drive Suite 100
From the beginning of my first visit with Dr. Brennan through my total knee replacement surgery , as well as my subsequent manipulation procedure has been a great experience for me. Dr. Brennan , as well as his assistant Sean Ocame were exceptional throughout my entire surgery and follow up treatment. I also would like to say that the entire staff as St. Charles Orthopedics has also been exceptional throughout my treatment and have made my experience as pleasant as it could ever be.
“My experience has been exceptional.”
From the beginning of my first visit with Dr. Brennan through my total knee replacement surgery , as well as my subsequent manipulation procedure has been a great experience for me. Dr. Brennan , as well as his assistant Sean Ocame were exceptional throughout my entire surgery and follow up treatment. I also would like to say that the entire staff as St. Charles Orthopedics has also been exceptional throughout my treatment and have made my experience as pleasant as it could ever be.
Orthopedic Associates of Long Island - Riverhead - 74 Commerce Drive Suite 4
Dr. Brennan and his team did both hips within a year period and both worked out wonderfully. No pain to speak of and little discomfort. Dr. Brennan and Sean take the time to attend to my needs and concerns. Excellent people to deal with as well as the office crew. Thank you !!
“Dr. Brennan and his team are excellent.”
Dr. Brennan and his team did both hips within a year period and both worked out wonderfully. No pain to speak of and little discomfort. Dr. Brennan and Sean take the time to attend to my needs and concerns.
Excellent people to deal with as well as the office crew.
Thank you !!
Orthopedic Associates of Long Island - Riverhead - 74 Commerce Drive Suite 4
I can not thank Dr. Brennan enough for the care he has provided to myself and my family. His knowledge and expertise helped me through a difficult time and his staff is extremely supportive. I never had a problem asking them questions and understanding the procedures and outcomes. When I needed other doctor recommendations, they were helpful and just as efficient. The group of dr.s at St. Charles Orthopedics are the best. They have earned my trust and loyalty. I can not thank them enough.
“Highly Recommend”
I can not thank Dr. Brennan enough for the care he has provided to myself and my family. His knowledge and expertise helped me through a difficult time and his staff is extremely supportive. I never had a problem asking them questions and understanding the procedures and outcomes. When I needed other doctor recommendations, they were helpful and just as efficient. The group of dr.s at St. Charles Orthopedics are the best. They have earned my trust and loyalty. I can not thank them enough.
Orthopedic Associates of Long Island - Riverhead - 74 Commerce Drive Suite 4
Dr made me feel very comfortable and at ease.
“Wonderful bedside manner.”
Dr made me feel very comfortable and at ease.
Orthopedic Associates of Long Island - Southampton - 325 Meeting House Lane Building One
dr. brennan is the best. my shoulder has never felt so good. its 8 weeks i have not taken any pain killers or over the counter drugs since the operation. i am also done with pt already. i cant say enough about the job he did. very very happy. thank you dr. brennan.
“super, excellent. never felt better.”
dr. brennan is the best. my shoulder has never felt so good. its 8 weeks i have not taken any pain killers or over the counter drugs since the operation. i am also done with pt already. i cant say enough about the job he did. very very happy. thank you dr. brennan.
Orthopedic Associates of Long Island - East Setauket - 6 Technology Drive Suite 100
very knowledgeable
“a great experience”
very knowledgeable
Orthopedic Associates of Long Island - East Setauket - 6 Technology Drive Suite 100
I fell and tore my rotator cuff totally off the bone and Dr. Brennan informed me I needed surgery if I ever wanted to be able to lift my right arm again. I was afraid, but was living in constant pain and agreed to have the surgery. It has been three months since my surgery and I am no longer living in constant pain and I am able to use my right arm again. I would suggest that everyone in need of a rotator cuff repair have the surgery, and request Dr. Brennan because he is the best.
“Rotator cuff surgery”
I fell and tore my rotator cuff totally off the bone and Dr. Brennan informed me I needed surgery if I ever wanted to be able to lift my right arm again. I was afraid, but was living in constant pain and agreed to have the surgery. It has been three months since my surgery and I am no longer living in constant pain and I am able to use my right arm again. I would suggest that everyone in need of a rotator cuff repair have the surgery, and request Dr. Brennan because he is the best.
Orthopedic Associates of Long Island - East Setauket - 6 Technology Drive Suite 100
had a great experiance with Dr Brennan he did a great job and i am having great results so far. it was not as bad as i thought it would be.
“better then i antisapated”
had a great experiance with Dr Brennan he did a great job and i am having great results so far. it was not as bad as i thought it would be.
Orthopedic Associates of Long Island - Riverhead - 74 Commerce Drive Suite 4
I have to say my experience with Dr, Brennan was excellent. I had rotator cuff repair surgery and was off pain medication in 4 days. This was not what I expected , as I was told horror stories about this surgery. I would have done the surgery years ago if I knew I would have done so well.
“Rotator Cuff Repair”
I have to say my experience with Dr, Brennan was excellent.
I had rotator cuff repair surgery and was off pain medication in 4 days.
This was not what I expected , as I was told horror stories about this surgery. I would have done the surgery years ago if I knew I would have done so well.
Orthopedic Associates of Long Island - Southampton - 325 Meeting House Lane Building One
complete caring with dr brenan and st charles hospital
“excellant treatment”
complete caring with dr brenan and st charles hospital
Orthopedic Associates of Long Island - Riverhead - 74 Commerce Drive Suite 4
Dr.Brennan explained everthing to me before my surgery, and took time to answer my guestions. Very friendly staff and polite.
“great experience”
Dr.Brennan explained everthing to me before my surgery, and took time to answer my guestions. Very friendly staff and polite.
Orthopedic Associates of Long Island - Southampton - 325 Meeting House Lane Building One
excellent
“very good”
excellent
Orthopedic Associates of Long Island - Riverhead - 74 Commerce Drive Suite 4
my overall treatment was fantastic. my new knee is strong and feels stable. dr brennan was the greatest from diagnosis to follow ups. I have recommended him to many of my friends.
“well cared for,great compassion,addressed all of my concerns”
my overall treatment was fantastic. my new knee is strong and feels stable. dr brennan was the greatest from diagnosis to follow ups. I have recommended him to many of my friends.
Orthopedic Associates of Long Island - East Setauket - 6 Technology Drive Suite 100
Dr Brennan took all the pain away!!! He really listened to all my concerns. I trust him and believe in him!
“Hes the Best!!!”
Dr Brennan took all the pain away!!! He really listened to all my concerns. I trust him and believe in him!
Orthopedic Associates of Long Island - Riverhead - 74 Commerce Drive Suite 4
great experience with surgery and followup visits! No complaints with any of the care I received!
“Rotator Cuff Repair”
great experience with surgery and followup visits! No complaints with any of the care I received!
Orthopedic Associates of Long Island - Riverhead - 74 Commerce Drive Suite 4
very happy with skill level of not only the Doctors but the staff as well
“completely happy”
very happy with skill level of not only the Doctors but the staff as well
Orthopedic Associates of Long Island - Riverhead - 74 Commerce Drive Suite 4
Dr. Brennan clearly explains the diagnosis and the treatment options.
“Very personable - takes the time to really listen to you.”
Dr. Brennan clearly explains the diagnosis and the treatment options.
Comment - “ Shoulder was a breeze surgery and recovery ”
No pain after 3 days of surgery and recovery was the best I ever had because of the advance technology now days. Don't be afraid. Would you rather be in pain the rest of your life? I didn't. Now I can enjoy my life. Sleep better to. The hospital stay was very good they treated me very well.