Is there a site where I can look up to see if Medicare approve my surgery ?

I don't know about looking it up, but Medicare paid for my surgery.

Thank you

Google "medicare requirements for bariatric surgery" you can find lots of info. It paid for mine, and it was a revision from a lap band to RNY. The first office I visited told me incorrectly that Medicare WOULDN'T pay for a revision, so I actually dropped my plan to do it until the lap band slipped and had to come out anyway. I went to a different surgeon whose office said they WOULD pay for it, and long as I met the criteria, and between the Medicare and my supplemental insurance, all I had to pay for was the psych consult and the dietician! I was sweating bullets until all the bills came that I would be stuck since Medicare doesn't do preapprovals-they either pay it or they don't...but they came through.

Medicare paid for my surgery. It was medically necessary, I had a BMI of 40 and two comorbidities. I didn't have to do the six months pre-op weight loss program.