Anyone had revision w Dr Provost in Dallas,Tx

I am looking in to a revision w Dr Provost. I had my VBG done 7 Years ago with Dr Hamn. Dr Hamn is now out of network and has recommended Dr Provost. I went to see Dr Provost and he said he could do the RNY Lap. I am very nervous about changing DR'S. I was just wanting to know if any one new anything about Dr Provost.