Nail biopsy results

I had a toenail biopsy 4 weeks ago. At the time I was told if everything was ok I would have a phone consultant appointment but if anything else I would have a in person . I've been booked in for a in person appointment but it's with plastic surgery consultant who did my biopsy. 
I'm confused why would I go back to plastics for results and not dermo ?

Who did everyone go and see for their results 

I know I don't have a long wait now but i just feel confused . He told me at the biopsy he was confident it would be ok saying 70/30 in favour