For context if you don't know, he's one of the doctors that operates on V in the tower ending.
Some (very passionate) people say that Reed is lying about having European contacts and wanting to help songbird with those contacts, but I always thought Lozano was from Europe, I knew someone named Lozano who said he has Spanish heritage deriving from Spain, after some googling, the last name apparently also has origins from Switzerland and Italy. So that combined with his accent always made me think he was European
Though the last name also has origins in Mexico and parts of Central and south America so it could be either
Is there any confirmation on where he's from? If there isn't it's not that big of a deal, at least not as big of a deal as some people make it out to be.