In 2008 he co-founded Castlight Health , named by the Wall Street Journal as the # 1 venture - backed company in America for 2011 .
Park co-founded athenahealth with Jonathan S. Bush in 1997 at the age of 24 .
In 2008 Jonathan S. Bush co-founded Castlight Health , named by the Wall Street Journal as the # 1 venture - backed company in America for 2011 .
Park co-founded athenahealth with Jonathan S. Bush in 1997 at the age of 24 .