ArticleJournal of managed care & specialty pharmacy2025
The influence of medication adherence on Medicare Star Ratings: A decade-long analysis of health plan performance.
Article in Journal of managed care & specialty pharmacy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
6 citing papers in PubMed.
- Association of diabetes medication adherence quality measure performance with A1c control among Medicare Advantage beneficiaries.Journal of managed care & specialty pharmacy · 2026Article
- A primer on clinical programs in managed care pharmacy.Journal of managed care & specialty pharmacy · 2026Review
- Toward a National Health Digital and Data Architecture: Laying the Foundation for Digital Transformation: Commission on Investment Imperatives for a Healthy Nation.NAM perspectives · 2026Review
- Measuring Adherence to Multiple Medications Using Guideline-Directed Medical Therapy as a Model.medRxiv : the preprint server for health sciences · 2025Article
- Trends in delivery of comprehensive medication reviews by race and ethnicity, 2013-2021.Journal of managed care & specialty pharmacy · 2025Article
- Unmanaged depression and chronic disease medication adherence in Medicare Advantage beneficiaries: A claims-based analysis.Journal of managed care & specialty pharmacy · 2025Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe Medicare Star Ratings Program, managed by the Centers for Medicare & Medicaid Services, assesses Medicare health plan performance. This program consists of quality measures that evaluate plan performance for both Medicare Part C and Part D, including 3 key medication adherence measures.
objectiveTo assess the potential relationship between performance on medication adherence measures and overall star rating performance for Medicare Advantage (MA) health plans.
methodsAn analysis was conducted using annual Medicare Star Rating health plan performance data from 2015 to 2024 to assess the impact of performance on medication adherence measures on health plan overall star rating. Numerical percentages were calculated to assess the rates of a health plan achieving at least a 4-star overall rating if they achieved 4 or more stars, as well as a 5-star rating on each medication adherence measure or composite measure.
resultsFrom 2015 to 2024, 4,213 health plan contracts received a star rating, of which 2,076 achieved at least a 4-star overall rating (49.3%). For plans achieving at least 4 stars on the medication adherence measures, 70%-74% of them also achieved at least a 4-star overall summary rating, depending on the specific measure. Among plans achieving 5 stars on any adherence measure, 85%-90% of them achieved at least a 4-star overall rating.
conclusionsAssessing a decade of the Medicare Star Rating performance data showed that MA health plans that performed well on the medication adherence measures also had a high rate of achieving a 4-star overall rating. Future research should explore the interplay between medication adherence measures and other Medicare Star Rating criteria.
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