This Viewpoint outlines implementation principles intended to protect individuals with medical frailty from unintended coverage disruption because of new policy under the budget reconciliation act of 2025 (HR 1).

This cross-sectional study uses Medicare data to compare 2 definitions of safety-net ambulatory practices to investigate the extent to which safety-net practices overlap.

This survey study investigates laypeople’s reactions to finding out that their clinician’s performance metrics may be based on the percentage of patients who undergo cancer screenings.

This cross-sectional study examines prior authorization processing times and approval rates for branded medication prescriptions that were initially rejected, and assesses key factors associated with variation in these outcomes.

This review evaluates the FDA Sentinel Initiative’s Active Risk Identification and Analysis system use and challenges amid ongoing plans to modernize it through the forthcoming Prescription Drug User Fee Act.

This Viewpoint proposes an expansion of state-run prescription-drug monitoring programs to meet the need for broader pharmacovigilance given the shift to alternative payment methods that bypass traditional insurance claims.

This JAMA Forum discusses the possibilities of using artificial intelligence to speed up the clinical trial process and accelerate the discovery and delivery of new treatments.

Health Policy

This cohort study examines trends in occupational mobility of health care support workers who entered the workforce in young adulthood in the US.

This economic evaluation assesses the health outcomes and costs of policies providing stable housing to older adults experiencing homelessness.

This cross-sectional study evaluates the effectiveness of California’s local flavored tobacco ban policies and assesses whether these policies may have unintentionally contributed to increased cigarette use.

This Viewpoint encourages clearly defining ultraprocessed foods based on evidence for the purpose of policymaking.

This Viewpoint describes the ongoing measles outbreak in Israel and suggests actionable strategies to improve vaccination coverage and prevent mortalities among infected individuals.

This JAMA Forum discusses 3 conspiracy theories being amplified by the Secretary of the US Department of Health and Human Services and the consequences of policy changes on US health.

Health Policy

This cross-sectional study examines how civil monetary penalties compare to the profits of Medicare Advantage insurers to understand whether they are large enough to be a meaningful deterrent to violating program rules.

This cross-sectional study compares prices and facility characteristics of residential substance use facilities owned by private equity firms with other for-profit facilities and whether there are differences by ownership type.

This cohort study identifies variations in the care cascade for patients in need of coronary artery disease testing and cardiology referral after an emergency department visit.

Health Policy

This Viewpoint discusses how partnerships between public health and criminal justice organizations could help improve health and safety and minimize harms from gun violence.