What type of Dr. Does Fills?

What type of doctor do I look for to ask about fills in case I go to Mexico for a band? I seem to be hearing over and over to have that figured out before you go. How did you all find your fill doctors?

I found an wl surgeon here in Ok to do fills before I completely decided on Mexico. They wanted me to come there but I said for the 17,000 verses the 8200, i just cant. the fills if i used him as a surgeon would only be 87.00 but will be 187.00 since he wont be doing the surgery.