I just talked to the clinic and they said my co pay after medicare would be over 7000 for lapband and over 10000 for gastric? Is this normal?

Are you sure that's your copay and not the total cost? Are you covered by a supplement or only by Medicare? If you are covered only by Medicare, that seems way too high, as Medicare's Part A deductible is $1,068, then you pay 20%. I can't imagine that the cost of the surgery is so high that your 20% plus the Part A deductible would total $7,000.