(Alex Wong/Getty Images) (Alex Wong/Getty Images)

President Obama will meet Tuesday with some of the nation's leading high-tech executives to discuss how to improve HealthCare.gov and the federal IT contracting system, along with his administration's approach to national security, a White House official said.

The 15 attendees include some of Silicon Valley's most prominent chief executives, including Apple's Tim Cook, Yahoo's Marissa Mayer, Dropbox's Drew Houston and Google's executive chairman, Eric Schmidt. The group also includes representatives of traditional technology firms, such as Randall Stephenson, the chairman and CEO of AT&T, and Comcast's Brian L. Roberts.