Medicare Part D Premiums Based On Income 2024 India. If you have medicare part b and/or medicare part d prescription drug coverage, you could owe a monthly surcharge based on an income related monthly adjustment amount (irmaa). The monthly cost for medicare part d in 2024 is about $31.50 on average, but it can vary depending on the plan and the area.

For 2025, the base beneficiary premium is $36.78, an increase of $2.08, or 6%, over the 2024 base premium of $34.70. However, the premiums for part b (medical insurance) and part d (prescription drug insurance) can vary between individuals based on their income level.