Table 2.

Eligibility criteria

Patient eligibility criteria
Inclusion: • Enrollment with the Michigan Medicine anticoagulation monitoring service • Currently prescribed warfarin with anticipated use for ≥90 days on day 1 of trial enrollment, according to the EHR medication list • Currently prescribed an antiplatelet drug (aspirin, clopidogrel, ticagrelor, or prasugrel) according to the EHR medication list	Exclusion: • Age less than 18 • Prescribed a Proton pump inhibitor • Documented intolerance or allergy to Proton pump inhibitor use • Left ventricular assist device • Heart transplant
Clinician eligibility criteria
Inclusion: • Practicing cardiologists at Michigan Medicine who in the prior year had a face-to-face or virtual visit with a patient who meets eligibility criteria for this study • Practicing clinicians in any specialty who are designated as the clinician of record with the anticoagulation clinic for a patient who meets eligibility criteria	Exclusion: • Cardiologists specializing in electrophysiology who are not the designated clinician of record for at least one patient meeting eligibility criteria

EHR electronic health record