Where should I take my board to fix a ding?

I just got a horibble ding on my new-ish only board
It is near the nose on the rail. It looks like a fin slashed it and it is very deep. Wierd thing is i didnt notice when i did it. Someone else told me. Where should I take it to in San Diego? I am not even going to think about doing it myself. will it ever ride the same?
