He is. According the Princeton University's Daily Princetonian's
website, Orszag’s mother Reba, the president of Cambridge
Hydrodynamics, a research and consulting firm in Princeton, said in
an interview that Orszag has always shown an interest in public
finance. “I think he just always had a concern for ... what taxes
supported,” she said. Reba Orszag was also former president of the
Center for Jewish Life board of directors. see
http://www.dailyprincetonian.com/2008/11/26/22255/