The German "Dr. med" is a scam. They do 1 year of an irrelevant experiment that is sped up by p-value fishing and get the "Dr. med" thrown after them. They and their professors generally have no clue about the statistics used to validate the fake and irrelevant experiment.

They also omit the "med", which is much like omitting "h.c.". And they are very keen on using the title in general.