Understanding Medicare Premium Increases and Changes in 2024

by David Bynon, last updated

As the 2024 Medicare Open Enrollment Period approaches, it’s crucial for Medicare beneficiaries and those planning for retirement to stay informed about the latest developments in Medicare premiums and costs. The Medicare program plays a vital role in the healthcare coverage of millions of Americans, and annual changes can have a significant impact on individuals’ finances and access to care.

Looming Medicare Part B Premium Increase

One of the most notable changes in the upcoming year is the increase in Medicare Part B premiums. In 2023, the monthly premium for Medicare Part B was $164.90. However, for 2024, it is projected to rise to $174.80. This increase is of particular concern to Medicare beneficiaries as it affects their monthly expenses for essential medical coverage.

The Role of a New Alzheimer’s Treatment

One major factor contributing to the rise in Medicare Part B premiums is the introduction of a new drug treatment for Alzheimer’s disease called Leqembi. Developed by pharmaceutical companies Eisai and Biogen, Leqembi is designed to help individuals in the early stages of Alzheimer’s. However, this treatment comes at a cost, and Medicare beneficiaries are expected to cover some of that cost through higher monthly premiums.

Expected Part D Premium Decrease

While the increase in Part B premiums may cause concern, there is some positive news regarding Medicare Part D premiums. The average total monthly Part D premium is projected to decrease from $56.49 in 2023 to $55.50 in 2024, providing a slight relief to beneficiaries. This decrease is attributed to premium stabilization efforts and an improved Basic Part D benefit.

Understanding Part D Premiums

To grasp the significance of this decrease, it’s important to understand how Part D premiums are calculated. The average total Part D premium is determined by adding the average basic premium to the average supplemental premium for plans with enhanced coverage. This calculation provides a more accurate projection of what people will pay in 2024 for Part D premiums.

Factors Behind Part D Premium Decrease

The decrease in Part D premiums for 2024 can be attributed to premium stabilization efforts, including the 2022 Inflation Reduction Act (IRA), which has played a role in redesigning Medicare Part D and limiting premium increases. Additionally, an improved Basic Part D benefit has been introduced, capping annual out-of-pocket costs, limiting cost-sharing for covered insulin products, and eliminating cost-sharing for recommended adult vaccines in 2024.

Upcoming Announcements

Medicare beneficiaries and those planning for retirement should keep an eye out for upcoming announcements from the Centers for Medicare & Medicaid Services (CMS). The CMS is expected to announce the 2024 premiums, copayments, and other cost-sharing details for all Medicare Advantage (Part C) and Part D plans in late September. This fall, they also plan to release the Medicare Part A and Part B premiums and deductibles.

Social Security’s Role

It’s worth noting that the Social Security Administration plays a significant role in determining the costs associated with the Medicare program. Each year, the SSA adjusts premiums and deductibles based on rules outlined in the Social Security Act. For 2024, a 3.2% COLA (Cost of Living Adjustment) increase is expected to raise Social Security payments. This COLA increase has implications for Medicare beneficiaries as well, as it can influence their overall financial situation.


As we look ahead to 2024, it’s clear that changes in Medicare premiums and costs will have an impact on Medicare beneficiaries. Staying informed about these changes, understanding the reasons behind them, and planning accordingly are essential steps in managing healthcare expenses in retirement. MedicareWire.com will continue to provide updates and insights to help you navigate the evolving landscape of Medicare.

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