With his previous book, “The Creative Destruction of Medicine,” Eric Topol, a cardiologist and director of the Scripps Translational Science Institute, established himself as one of medicine’s most innovative thinkers about the digital future. In “The Patient Will See You Now,” his exhaustively researched follow-up, Topol turns his attention to medicine’s “democratization” via “unplugged digitization, with the smartphone as the hub.” With approximately two billion users worldwide, smartphones, Topol says, “are the most rapidly adopted technology in the history of man.”