I'm sorry to hear this, James.
I bet I know what happened. They were probably a victim of their own success. They may have so many patients now, they cannot keep track. Its so sad, after years of hearing great things about this hospital. And it comes to this..
I'd start a letter writing campaign to newspapers in their general area, exposing this incompetency & lack of care if I were in your shoes..
Sincerely,
Matt