Dr. Patient confidentiality

California
My doctors secretary released case notes to my employer
in August of 97' I became aware of them in April 99' when I requested my workers comp. file from the US Department of Labor. She took it upon herself to release information not pertinent to my case. She writes: I think it is time to update you on Arlene's medical condition. When I confronted her about this she was not phased when I asked the doctor if he was aware that she sent out case notes he said no, in addition he said he never received a request for a medical update in regards to me.Going through some paper work I found a letter dated June 1997 a request for medical update information for the USDepartment of labor. I requested a medical update from the secretary and the Dr. wrote Arlene has not been medically released to return to the Postal Service the condition is on going and chronic. My attorney requested a more detailed report to help my case. The doctor wrote back and said he did'nt have any information regarding my medical update regarding job harassment. So, on one had he says I am not medically released to return to the Postal Service the says he cannot write the report. Because of this my attorney said my case will be impossible to prove (I was disabled in 8/11/88. I have been seeing him since 1995. Who is liable for releasing case notes to the USDepartment of labor and not a medical update because I am afraid my compensation will be terminated.Do I have a right to sue for disclosing personal information from my medical file without my consent.