Zamperoni, 33, a head chef at Cipriani Dolci in Grand Central Terminal, was found dead on Wednesday on the first floor of a hostel in Elmhurst, Queens, according to police.
His identity was confirmed by authorities on Thursday.
The medical examiner will determine the cause of the death, police said.
The circumstances leading to his death are under investigation.
The chef had been last seen leaving work at 10 p.m. on Saturday, New York City police said. He was reported missing by his coworkers.
Zamperoni moved to New York in April, according to ABC New York station WABC.
Cipriani Dolci general manager Fernando Dallorso told WABC that Zamperoni's bank cards haven't been used and his phone has been off for days.