Hello and welcome! Totally meant to pop in here a while ago..oops! I for one am excited to have a more shady type character around for Negan to bounce off of. Bonus points for him being a doctor. Negan hasn't torched the one he has just yet, but once he does Adam's importance at the sanctuary will sky rocket. Which will give him a little bit of wiggle room. Especially if a plot I have brewing comes to pass. He'll be needing a doctor around for sure.
For now, I couldn't tell you if they'll get along or not. Negan is a tricky one when it comes to who he takes a liking to and who he doesn't. Though from experience, he at least has to like someone a little bit for them to keep breathing. We'll just have to wait till we've plopped them in a scene together and see! There may just be an opportunity to find out in the group thread that's coming up if you're interested?