Medicare Part B Costs 2024 Monthly Premium Chart. Standard medicare part b premium: In 2024, the standard medicare part b premium amount is $174.70.

The standard monthly premium for medicare part b enrollees will be $174.70 for 2024, an increase of $9.80 from $164.90 in 2023. Although medicare part b will generally cost $174.70 monthly in 2024, about 8% of medicare part b beneficiaries with.