Seniors could save over $1,800 in annual fees taken from their Social Security checks if the government redirected what it spends subsidizing Medicare Advantage plans to instead reduce premium costs. 
Under the current arrangement, “traditional” Medicare pays about $12,000 a year to private Medicare Advantage insurers for every patient whose care they “manage.”
Medicare Advantage insurers — which include UnitedHealth Group, Humana, Cigna, and Blue Cross Blue Shield — are profiting at the expense of ordinary seniors, 40 percent of whom are completely dependent on their Social Security benefits, which average about $1,600 per month after Medicare premiums are taken out.
“Insurers are quietly plundering the Medicare trust fund for their own profits and compromising the health of senior citizens and [people with] disabilities,” said Ed Weisbart, a family medicine physician who is the secretary of Physicians for a National Healthcare Program (PNHP), a single-payer advocacy group that produced the report.
https://jacobin.com/2023/10/medicare-advantage-140-billion-scam-senior-health-care/