For Dr. Donna Bell, treating patients looks a little different now. “I'm usually on the phone anywhere from 5-15 minutes,” the semi-retired ob-gyn and primary care physician told us recently from her South Florida home. Dr. Bell is among a growing number of doctors participating in telemedicine, an increasingly popular and legal way for doctors to diagnose conditions and prescribe medicine to patients using phone or video in place of wait times and office visits.