United Healthcare surgeons?

I have United Healthcare "EPO Select" (my employer's tier of UHC's HMO) and that means I have to pick an in-network surgeon that accepts UHC and is willing to also perform at an in-network hospital (Stanford, Mills, CA Pacific, Good Samaritan, etc..) Do any CA (preferably Bay Area) folks have any recommendations? UHC has the worst website ever.. really outdated in terms of approved doctors and absolutely zero info on bariatric surgery so you have to triple-check everything over the phone/email and then with each doctor to make sure it's up to date :-/ Kind of a pain, but I'm going down the list....

If anyone in my area has UHC and any info on good, local in-network bariatric surgeons I'd be much obliged. I'm primarily interested in RNY.

Thanks!