Or just dont sign the silly thing. With all the id theft, this is a lame ass thing to do. The fact that They expect you to give the info and access to a committee is one darn good reason to refuse.
"My lawyer has discouraged this since I have no control over an hlc and there is no reason to give unnamed persons access to my medical records or any say in my treatment."
In fact as the HLC is not being given POA then you are just giving them open ended snooping rights. There is nothing useful they can do-all they can do is harrass you or your family about your choices.