Can my doctor he held accountable by giving a 0% disability rating which contradicts his words to me, as well as his own notes fro my last visit?

After being in pain for almost a year, a new doctor diagnosed me with S1 joint dysfunction. I was treated for this with an injection and followed up with several weeks of physical therapy. It was wonderful to finally get some relief. Fast forward 9 months later...this doctor said I had reached MMI. He also cautioned me that this condition had a history of needing repeating injections. His exact words in his notes from that visit "possibly 2 to 3 times a year to keep the pain at a tolerable level". Imagine my surprise when he did the final forms to my previous employer showing I had 0% disability and needed no further treatment at this time. Unfortunately my employer would only consider what was stated in the official form. They refused to keep my medicals open and I had to settle for a relatively small amount and was told with 0 disability, I was lucky to get anything. If you do any research on this...continuing procedures are almost always needed. Should he be held accountable?