Medicare 2025 Cola Increase 2025. The standard monthly premium for medicare part b enrollees will be $185.00 for 2025, an increase of $10.30 from $174.70 in 2024. We'll continue to provide updates to medicare plan changes as more details.

This represents a 5.9% increase, significantly. It’s worth noting that standard medicare part b premiums will be $185 per month in 2025, a $10.30 increase compared with 2024.