Health Policy

This cross-sectional study examines changes in the market concentration of hospitals affiliated with group purchasing organizations between 2014 and 2024.

This cohort study reports on participation by nephrologists in mandatory and voluntary value-based kidney care models and the association with home dialysis use.

This cohort study assesses risk factors for obstetric unit closure and closure of entire hospitals providing obstetric services.

This Special Communication compares policies regarding cognitive decline in aging physicians among the US, Canada, and the other Group of Seven (G7) countries and how these countries manage age-related cognitive risks in other safety-critical fields.

This Viewpoint discusses state and federal regulatory restrictions on physician dual fee schedules and cash-based pricing and describes associated increases in health care costs.

This JAMA Forum discusses the promise and limits of health savings accounts, the reasons why market competition alone is not the answer, and ideas for promoting value and affordability.