High-Tech Menace "I cannot tell you how many times I've had clinic visits interrupted by cell phones," said Dr. John Song, an oncologist with the University of Colorado Hospital in Denver. "I'll sort of take a deep breath and wait." The problem grew so large that Dr. Jandel Allen-Davis, an obstetrician with Kaiser Permanente of Colorado in Denver, posted a no-cell-phone sign. In her specialty, when a patient picks up a cell phone mid-exam, it can be almost humorous. "I had a woman in the middle of her pelvic exam, feet up in the stirrups, talking on the phone," Allen-Davis said. But generally, doctors agree, cell phones hinder patient care."