Nurses Patricia Wegener (left) and Susan Davis at Mercy Hospital can monitor the condition of a patient who is miles away via the hospital's technology. But some health insurers and analysts remain skeptical that telemedicine saves money. Alex Smith/KCUR hide caption

itoggle caption Alex Smith/KCUR

Diagnosis by text or a phone call is often convenient and popular with patients. But is it good medicine? Apriori/iStockphoto hide caption

itoggle caption Apriori/iStockphoto

UnitedHealthcare says it will cover doctors' visits by live video on smartphones, tablets and computers. Doctor On Demand hide caption

itoggle caption Doctor On Demand

Go Big Green! Dartmouth is testing the VGo robot to help diagnose concussions when neurologists aren't at the game. Mark Washburn/Courtesy of Dartmouth-Hitchcock hide caption

itoggle caption Mark Washburn/Courtesy of Dartmouth-Hitchcock