Leana Wen created the Who's My Doctor" campaign last year. The effort ... goes a step further than the federal government's mandate requiring physicians to disclose all money they receive from drug companies. Last month, the Centers for Medicare & Medicaid Services released data that outlined the $3.5 billion that companies paid to the nation's doctors. The Open Payments database ... was heavily opposed by physician groups and pharmaceutical companies. "Incentives matter," said Wen in a recent TED talk, "If you go to your doctor because of back pain, you might want to know he's getting paid $5,000 to perform spine surgery versus $25 to refer you to see a physical therapist." As part of the "Who's My Doctor" effort, each physician voluntarily publishes a "Total Transparency Manifesto," which ... flows into a searchable database that prospective patients can use. One year after starting the project, only 34 "transparent doctors" are listed on the website. There are many more who were less than pleased. "I thought some doctors would sign on and others wouldn't, but I had no idea of the backlash that would ensue," she said in her TED talk. The criticism quickly went beyond online comments. Soon, people were asking Wen's employer to fire her, and sending mail to her home address with threats.