It does vary as Don said. Some charge $45.00 just for the frog to be seen and others charge what they deside. These are considered exotic pets so usually there is an exotic pet charge like the $45.00 I mentioned. You'll have to find a vet that treats amphibians and ask them how much they charge. They should be able to tell you over the phone.

I would put some Neosporine over the wound that is open. Be sure its Original Neosporine without painkiller. Just plain Neosporine. This will help prevent further infection until you can get the frog to a vet.