I don’t know what he’s complaining about. I’ve had doctors who couldn’t remember my name one week to the next.
Oh, and to anyone who knows him it’s obvious (because, among other reasons, he’d never forget a patient and his history, man’s got a memory like an elephant) but for those who don’t, this guy has nothing in common with Nighthawk’s actual doctor. Same is true of everyone else you’re going to meet in this strip.