If you click on the link that @DocVikingo originally posted, DAN notes that the report is free for anyone to download. As it states, if you're not a DAN member, all you have to do is type in a first name, last name, and an email address.
Based on what you said, it seems to me that a better procedure for a dive op would be to have each prospective diver fill out a medical history form, and then ask for a doctor's statement from only those whose completed forms indicate they have some known health risk. This is similar to what most dive training agencies require when registering to take a course. I wouldn't object to this requirement, so long as I had the form made available to me in advance of my trip.
There's no way I'm inclined to give out my personal medical history to a dive shop. The very idea of it . . .no no no, just no.