"Extracting medical care from the health care system is all too often an expensive exercise in frustration. Dr. Eric Topol says your smartphone could make it cheaper, faster, better and safer."

"That's the gist of his new book, The Patient Will See You Now. Lots of people are bullish on the future of mobile health to transform health care, but Topol gets extra cred because of his major medical chops: Former head of cardiology at the Cleveland Clinic and present director of the Scripps Translations Science Institute in La Jolla, Calif."

"We caught up with Topol during his book tour to ask him just what mobile, digital health care would be like. Here's an edited version of our conversation."