Quantifying the Impact of COVID-19 on Telemedicine Utilization: Retrospective Observational Study.

Background: While telemedicine has been expanding over the past decade, the COVID-19-related restrictions regarding in-person care have led to unprecedented levels of telemedicine utilization. To the authors' knowledge, no studies to date have quantitatively analyzed both national and regional trends in telemedicine utilization during the pandemic, both of which have key implications for informing health policy.

Objective: This study aimed to investigate how trends in telemedicine utilization changed across the course of the COVID-19 pandemic.