Dr Waters at USC medical center is a specialist in Parkinson's and in pharmacology. She has been a tremendous help to my mother, who has advanced pd and has had numerous problems with pain and with too much medication. Dr Waters also pushed for and succeeded in helping my mother get a pallidotomy thru Kaiser. (My folks pay out of pocket to go see Dr Waters , since their neuro at Kaiser admittedly is not a specialist in parkinsons.) Debbie [log in to unmask]