due to patient doctor confidentality. He can't tell her. How to prove the doctor broke the code of ethnics? that's different.
Word of advice? See a different doctor at a STD clinic. Problem 1 solved.
If you have marriage problems you should have that addressed.
Anyway what I wanted to share really is an excellent website to post free questions to doctors. Avvo.com
But from what I've read, skip the streetwalkers completely, go for the escorts and just put a glove on. Looks like getting an STD is pretty minimal. I'm not worried about the providers at all. I'm worried of the other people she might have seen who do not get tested regulary.