Decomposing Medicare total, Part D, and Part B drug payments among people with Alzheimer's disease and related diseases.

ABSTRACT:

Introduction

This study aims to examine the extent to which health status, socioeconomic characteristics, and access to needed medications contribute to differences in total Medicare costs and drug spending among beneficiaries with and without Alzheimer's disease and related dementias (ADRD).

Methods

We used Medicare fee-for-service (FFS) claims data from 2018, 2019, 2021, and 2022, linked with the Consumer Assessment of Healthcare Providers and Systems (CAHPS) survey, to examine factors associated with total Medicare spending, Part D drug spending, and Part B drug costs. Decomposition analysis was conducted to quantify the contribution of individual characteristics to observed cost differences by ADRD status.

Results

Our model explained 48% of the total Medicare spen

SUBMITTER: Chen J 

PROVIDER: S-EPMC12482227 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature