The Trump administration is considering enacting a policy that would automatically funnel seniors into for-profit Medicare Advantage plans—which critics say would set Medicare on the path to full-scale privatization.Chris Klomp, the Trump administration’s director of Medicare and deputy administrator of the Centers for Medicare and Medicaid Services (CMS), told STAT last month that enrolling seniors in Medicare Advantage (MA) plans by default “is something that we’re thinking through.” MA plans are funded by the federal government and run by private insurance companies such as UnitedHealthcare and Humana, both of which have been accused of improperly denying necessary care to patients and overcharging taxpayers.The default enrollment scheme was floated in the far-right Project 2025 agenda that President Donald Trump has repeatedly tried to disavow. Currently, older Americans who have received Social Security benefits for at least four months before they turn 65 are automatically enrolled in traditional Medicare, and they can choose to enroll in an MA plan as an alternative.“Another bad idea straight from Project 2025,” Rep. Mark Pocan (D-Wis.) said in response to Klomp’s comments on the proposed default enrollment change. “Medicare Advantage is private, for-profit insurance that overcharges American taxpayers by billions every year and regularly denies seniors the care they need.”“Making Medicare Advantage the default option hurts patients and taxpayers,” Pocan added, “but it will make insurance execs a lot of money.”“With Mehmet Oz running the agency, they can move incredibly quickly to make that happen, and they are.”Klomp said no plans have been finalized, but defenders of traditional Medicare warned that CMS—headed by Mehmet Oz, who during his 2022 US Senate run backed a plan entitled “Medicare Advantage for All”—could try to swiftly ram the change through without public input.“With Mehmet Oz running the agency, they can move incredibly quickly to make that happen, and they are,” Alex Lawson, executive director of the progressive advocacy group Social Security Works, told Common Dreams on Friday. “They will not explain it to the people, because the people hate the idea. Instead, they say ‘change the default option’ and other policy jargon to try and hide the fact of what they are doing, privatizing Medicare.”“They want to remove the guarantee of Medicare,” warned Lawson, “and replace it with the same private insurance giants that make billions denying healthcare, especially to those who need it the most.”Experts say making Medicare Advantage plans the default enrollment option for seniors would likely decrease traditional Medicare enrollment dramatically.Given massive overpayments to Medicare Advantage plans—potentially $1.2 trillion over the next decade, according to one independent estimate—a large increase in MA enrollment would be sure to drive up costs and monthly premiums across the board. A report released last month by the congressional Joint Economic Committee estimated that MA overpayments led to premium hikes of $212 per Medicare Part B enrollee last year.“Since 2016, MA overpayments have added an estimated $82 billion to Part B premiums,” the congressional report found. “[Traditional Medicare] beneficiaries, who are not enrolled in MA, bore roughly $6 billion of that burden.”Under one scheme floated last year by Rep. David Schweikert (R-Ariz.), eligible Medicare recipients would be automatically enrolled in the “MA plan with the lowest premium available,” unless they actively decide to opt out. Once enrolled in an MA plan, individuals would be unable to switch plans for three years.Wendell Potter, a former health insurance executive who now champions Medicare for All, warned Friday that under Schweikert’s plan, “seniors would be locked in a plan that the government chose for them, that has a limited network of doctors and hospitals, that makes them pay the entire bill for services they might receive outside of that network, and that denies coverage for medically necessary care far more than traditional Medicare—for three years.”In addition to weighing the default enrollment change, the Trump administration has recently delivered smaller-scale but significant victories to MA insurers, including by boosting federal payment rates—bowing to a massive industry lobbying blitz—and easing rules around the marketing of MA plans.David Lipschutz, co-director of law and policy at the Center for Medicare Advocacy, said Thursday that the latter move represents “a rollback of consumer protections, which gives in to pressures from the insurance industry and those who sell their products.”