Prescribers
All Michigan Medicine clinicians with prescribing privileges (including attending physicians, house officers, nurse practitioners, and physician assistants) who see patients in the ambulatory setting and who are not members of the study team will be eligible for study enrollment. Prescribers will be enrolled in the trial and randomized upon having an ambulatory patient whose DOAC prescription triggers an alert (either initial or longitudinal). Prescribers who do not have a new or existing DOAC prescription that is identified as inappropriate during the 18-month trial duration will not be considered eligible for the trial and thus not randomized. We anticipate that 300 prescribers will be enrolled in the trial. All prescribers were notified of the new alert system and companion trial through official EHR communication channels before initiating the trial. Prescribers may opt out of participation at any time.