Thanks @JoeyLiz I appreciate the information as to why certain things happen the way they do.
I certainly will be writing to the clinic, which is privately held, and copying in the hospital where it is located.
@kezmusc I appreciate that when you get to this point in your treatment you feel like all sorts of people have seen you in a state of undress, but personally I still prefer to limit that group to a 'strictly necessary' basis. It is not necessary for non-patients to be in a patient only waiting area with patients required to be half undressed.
In regard to the waiting, I appreciate that sometimes a wait is unavoidable but that doesn't excuse a lack of communication around it. Why do I need to sit in a waiting room for forty minutes in a gown when I could go for a walk or a coffee and come back when they are ready for me?