Medicaid paying for gastric bypass?

I posted in another forum and got some answers but was told to come here and ask. I am on SSI, I just got approved for it on Aug. 23rd of this year. I also got approved for medicaid. I was wondering if Mississippi Medicaid pays for gastric bypass? I am new to all this SSI and Medicaid stuff so I have no idea how to even find a Dr that accepts medicaid other than calling and asking. I live in the Northwest part of MS not to far from Memphis, TN. If anyone knows of any good doctors that accept medicaid and if medicaid will pay for gastric bypass than please let me know. Thanks.