Park has spent much of his tenure as technology officer opening up troves of government data to the public. He borrowed the idea from Silicon Valley, where information platforms have resulted in cascading new experiments and innovations. Park has previously named six areas where taxpayer-funded data collection can be given back to the private sector: health care, energy, education reform, public safety, international development, and finance. To inspire development using newly released public data, he has convened hundreds of entrepreneurs at a time. One such event in June 2012—a "datapalooza" focusing on health care—attracted 1,600 people. Park, 40, has spent much of his career trying to improve health care. When he was 24, he launched Athenahealth, which went on to become one of the country's top health IT firms. The company's initial public offering made Park enough money to be able to retire. But his retirement didn't last long; soon, he signed on with the Health and Human Services Department as chief technology officer, a post he held for three years. Obama promoted him to chief technology officer of the United States in 2012. He is the second person to fill the job, after Aneesh Chopra. A native of Salt Lake City, Park graduated magna cum laude and Phi Beta Kappa with an A.B. in economics from Harvard.