I think you just need to ask around for suggestions from others who have had it in Europe and/or just keep reading the board for mentions of doctors.
A few names of max fax docs in Europe mentioned on this board are; Alfaro, Spain, DeFranc, France, VanderDussen, Belgium. These are not definite suggestions or recommendations but just names you can ask about on here that others might have some feedback/experience with. There are definitely more than that though.