A National Business Group on Health survey of 140 large employers found that 48% offered telemedicine benefits last year, growing to 74% this year. More generally, nearly three-fourths (72%) of hospitals currently offer telemedicine services, as do 52% of physician groups, according to a survey of healthcare executives by Avizia. And the American Telemedicine Association projects that the number of virtual doctor visits in the U.S. this year will to rise 20% over last year, to 1.2 million.