A growing proportion of antipsychotic prescriptions for older adults were written by nonphysician clinicians, reflecting shifts in the mental health care workforce and prescribing practices, cross-sectional data showed. From 2013 to 2023, antipsychotic prescription claims for Medicare Part D beneficiaries written by psychiatrists and primary care physicians (PCPs) declined annually by 3.2% and 2.6%, respectively (P<0.001 for both). Prescriptions from advanced practice registered nurses (APRNs) and physician assistants (PAs), however, rose by 11.8% (P<0.001) each year, reported researchers.