Medicare Advantage health costs rise 9.6% as plan margins narrow1 report from 1 outlet in 1 language · first reported 2026-09-28 15:42 UTC · updated 2026-09-28 15:42 UTC · JSONEconomy & businessMedicare AdvantageReportsMedicare Advantage health costs rise 9.6% as plan margins narrowinsurancebusinessmag.com · en · 2026-09-28 15:42 UTC