Amazon is paying $3.9 billion for’membership-based’ healthcare service One Medical

One Medical’s presentation includes an app, 24/7 access to on-demand telehealth treatments by video, and guaranteed same- or next-day appointments available through more than 125 offices. It is backed by Alphabet’s GV unit (previously Google Ventures). Slick YouTube videos promise doctor’s offices that have been “reimagined” with more comfy furniture.