i referenced his doctor. I should have been more clear as yes, the doctor in question would be the one that either diagnosed him or is currently treating him.
As to whether he would know; one must assume there would be discussion of DV situations at a dv class. One can be aware of triggers to their ptsd and if didcussing DV is a known trigger then one can assume they would not be able to attend a DV class until the ptsd is controlled.
It would be no different than friends of mine that have ptsd due to military activities. If somebody suggested they go to a meeting where their respective activities were performed would be discussed they would know not to attend as thst sort of discussion is a known trigger.

