Dr. Hacker was a great doctor. I ended up doing something to my knee in August at my sons first birthday party and I had an MRI that showed nothing. I saw a different doctor in his office and recommended to see Dr. Hacker. After going to Dr. Hacker he did not want to do surgery at first so he had me start with physical therapy after that did not seem to be helping he said lets do an arthroscopic for a possible meniscus tear surgery which help amazingly well! It was like I had a brand new knee. After the surgery my swelling went down and the bruising magically disappeared. I resumed physical therapy for another 3 months and my therapist said whatever Dr. Hacker did was incredible. I would recommend Dr. Hacker to anyone looking for a great doctor and very skeptical of wanting to go to someone without knowing something.