In-person, video, and phone visits are scheduled visits; between-visit calls and between-visit messages are unscheduled between-visit interactions. Pre-PHE indicates pre–COVID-19 public health emergency, April 1, 2019, to March 31, 2020, at UCSF and September 1, 2019, to March 31, 2020, at SFHN; PHE-SIP, public health emergency shelter in place, April 1 to June 30, 2020; and hybrid-PHE, hybrid public health emergency, July 1, 2020, to March 31, 2021.