I'm disappointed with Medicare because they don't cover 100%, even they won't cover on vision and dental.
Medicare premium is $121 + $60 for Part D (drug plan) + $150-$250 for Medigap = $331 to $431 per month
Also Medicare Part D isn't good as private insurance - if Dexilant cost $600 per month so you have to pay $60 per month with private insurance or $300 per month with Medicare.