Impact Physical Therapy is great! I started going to the Glendale Impact PT knowing that physical therapy works. But, my experience with Dr. Dave Balzer was amazing--very different than therapy I'd received in the past. I waited 7 months to seek medical help for my knee. Over those 7 months the pain increased and my mobility decreased. Dr. Balzer used a variety of techniques to get my knee moving again and to alleviate the pain. Everyone at Impact PT is wonderful, but I am particularly grateful to Dr. Dave for giving me full, pain-free use of my knee back. My doctor specifically recommended Impact PT and I now understand why!