Part D National Base Beneficiary Premium 2024. For 2025, the base beneficiary premium is expected to increase by $2.08 for people with medicare part d, ensuring affordable choices in a robust market. You pay 1 percent of that year’s national base beneficiary.
Given the significant changes to the benefit, the ira includes protections that constrain the average level of premium increases across the part d market by limiting. Without premium stabilization, the 2025 base premium.