If its in connection with a potential felony, then yes, they probably do. If you read your paperwork carefully, there is usually a clause on the bottom that states something like they will allow access to all law enforcement, and anyone else involved in your care, something to that effect, its usually in the privacy policy and also the pain contract. So if you or your doctor is being investigated for ANY reason, then yes they very well could have access.
Oh wow! That is a good question and I can't wait to see the answers. I wish I knew