Medicare Advantage plans, formally Part C of Medicare, offer Medicare beneficiaries an alternative to original Medicare and have been successful in signing up Medicare-eligible Americans. However, 2025 was tough for Medicare Advantage plans and their customers. Policy changes during the past year have impacted deductibles, out-of-pocket costs, provider networks and prior authorization determinations.
The changes "have contributed to increased confusion, lower member satisfaction and a widespread lack of trust among Medicare Advantage plan members," according to J.D. Power's 2025 U.S. Medicare Advantage Study.
