By Sam Baker - 03/29/13 03:06 PM EDT
Lew, who is now Treasury secretary, attended Fontenot's going-away party Friday, along with a host of other high-ranking healthcare and budget officials.
"I can’t thank Keith enough for all he has done for this Administration and the American people," Zients said. "He is a strong leader and great public servant who we will all sorely miss.”
Fontenot is heading to the Brookings Institution after a 30-year government career that included stints at OMB, the Centers for Medicare and Medicaid Services, the Congressional Budget Office and the Social Security Administration.