Great surgeon. When the hospital staff and everyone you know has had a great outcome or loves to work with him, it gives you confidence going into the operation that he is competent to fix your issue. That confidence was well deserved as I came out of the total shoulder replacement with minimal pain and no issues. Of course, the doctor can only replace the parts that are bad. To make these work well in your body, you must adhere to the Physical Therapy treatment he assigns. My group are wonderful, and I am healing and getting stronger every day. Thank you Dr. Cobos.