With wider use of electronic health records (EHRs), physicians increasingly receive notifications via EHR-based inboxes. Types of notifications include test results, referral responses, medication refill requests, and messages from clinicians, among others. The following study obtained electronic logs of all notifications received by all physicians during a 6-month period from January to June 2015 at three large practices in Texas, and found that providers receive large quantities of EHR-based notifications. The large number of notifications makes it harder to discern important vs. irrelevant information and increasing their risk of overlooking abnormal test results. This suggests that clinicians spend an estimated 66.8 minutes/day on processing notifications, which likely adds a substantial burden to their workday.