Medicare Advantage- Supplemental-Medigap Insurance Plans

My DW has a supplemental through BC/BS that costs $122.00 per month. Also she has the plan d drug coverage for an additional 85.00 per month. So total cost is just over $200.00 per month. We rarely pay any out of pocket costs. I have a veterans disability of over 50% so all my costs are picked up by the VA and medicare.