Establishing a framework for quality of inpatient care for Parkinson's disease: A study on inpatient medication administration

•We found high rates of deviations between a patient's outpatient regimen and inpatient medication administrations.•Deviations in levodopa timing, dose, and substitutions were associated with a longer hospital course and morbidity.•Contraindicated medication use was associated with a longer stay, increased 30-day poor outcomes, and 90-day mortality.