@bookysue Unfortunately you are not alone in that assessment. Please consider using some of your down-time in isolation to contact your Congressional representatives about the issue. According to my pharmacist and PCP, it has to do with some arcane Medicare regulations about the government not "accepting" compensation from the pharma companies. Makes no sense to deny a benefit to a Medicare (or Medicaid) recipient that anyone else is eligible for - and government doesn't benefit from the discount, the patients benefit, especially since Medicare doesn't pay for the drugs anyway.
Another thing to consider - we always look at our plan choices before selecting - some Medicare Part B (injectables, inhalables & devices) and Part D (prescription) plans cover a lot more than others, often for only a small difference in Premium. For example, we pay for a plan (unfortunately not available to the general public) that covers all our meds with reasonable copays, but costs $3500/ year more than the cheaper one available to us. But just ONE of my husband's meds would cost us that much without our insurance, not to mention my meds and our other expenses. So for us the sacrifice of $300/month to have the extra insurance is worth it.
Sue