Evidence map›Paper›PMID 41436573›Full record

ReviewJournal of public health policy2026

Why do few Medicare beneficiaries switch their Part D prescription drug plans? Insights from behavioral sciences.

Nathan Hodson, Wändi Bruine de Bruin

Abstract readReview
In one paragraph

Review in Journal of public health policy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

Nathan HodsonUniversity of Southern California, Los Angeles, USA. nhodson@usc.edu.ORCID http://orcid.org/0000-0001-6022-2260
Wändi Bruine de BruinUniversity of Southern California, Los Angeles, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Medicare Part D innovatively included a market in public health insurance in the United States. Proponents argued that increased competition would drive better value for beneficiaries, but others feared that beneficiaries would struggle to navigate the complex program. Understanding how Part D beneficiaries choose between plans allows us to evaluate the extent to which Medicare Part D succeeds at increasing value to beneficiaries and where there is scope to support beneficiaries. Many Part D beneficiaries are sensitive to price cues in relation to pharmacy choice and medication adherence, yet frequently overpay for their plans. Empirical literature suggests that behavioral aspects including information overload, low salience, low trust, and practical 'sludge' all partly contribute to failure to switch. We propose solutions to address these barriers based on behavioral insights.

Indexed as

Medicare Part DBehavioral SciencesChoice BehaviorHumansUnited StatesBehavioral economicsHealth economicsMedicareMedicare Part DPrescription drug planSludgeUnited States

Identifiers

PMID41436573
PMCPMC13008778

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.