NO, YOU WILL NOT - John's Hopkins and UHC MEDICARE ADVANTAGE and Dual Eligible Medicare and Medicaid Advantage PLANS are the ones that they have not come to an agreement with -
Traditional Medicare (including your Medicare supplemental - Medigap ) is continuing. They will not terminate doing business with Traditional Medicare like you have. You do know the difference, right?.
I posted a link about this just the other day on this same forum.