U can talk to ur ob and they can see if your a good candidate for it. They can also discuss your chances of getting pregnant if its done. I know a few ppl that have inquired about reversing it and were able to get this info at her drs office.
My sister had her tubes reversed, she just looked online for a local doctor, in your county or surrounding counties, and she also called the local hospital for doctor's names. It's definitely possible, I know of a few people that have done this! Good luck!