Minister for Public Service, Elias Kapavore, made the announcement after being asked by Usino Bundi MP for confirmation of the appointment.
Kapavore said the National Executive Council have appointed Bivi to be acting after Danny Aloi was suspended by the Provincial Executive Council pending investigation of allegations laid against him.
He called on the public servants and the people of Madang to abide by the NEC decision and work with Mr Bivi.
He said there is only one administrator and it is John Bivi and not Aloi.
