From Penn Medicine (June 24, 2020):
After surveying almost 800 gastroenterology and hepatology patients and their physicians at Penn Medicine, 67 percent of both viewed their video and telephone appointments held during the peak of the COVID-19 pandemic as positive and acceptable substitutes to in-person appointments.

From March 16 to April 10, 2020, 94 percent of gastroenterology and hepatology appointments at Penn Medicine were performed using telemedicine in order to mitigate risks of COVID-19 spread while continuing to advance care as patients self-isolated at home. A telemedicine visit meant either a video visit (similar to FaceTime or Skype) or one via phone in which clinicians largely performed routine and non-urgent care.