Many Americans will be paying a little more for Medicare in 2025. Our article provides valuable insights into the 2025 Medicare Part B premium increase, which is outpacing both Social Security COLA and inflation. What It Means Part B According to the Centers for Medicare and Medicaid Services, or CMS, Americans who utilize Medicare Part B will pay more again in 2025. Next year, the standard monthly premium for those enrolled in Medicare Part B will increase by $10.30 to $185.