The role, one of a number of regional parliamentary secretary positions around the state scrapped, was held by Scot MacDonald before the March 23 election.

The parliamentary secretary for the Hunter was considered a representative of all government ministers in the region and was seen as a key figure in the Labor-dominated Hunter. 

Taylor Martin, the provincial MLC for the Hunter and Central Coast, said on Sunday he believed the removal of the regional roles would bring more direct ministerial involvement to the region.

"We'll see more involvement with parliamentary secretaries for particular portfolios and more involvement from the ministers themselves," he said.

"It's not just about the Hunter and Central Coast, it's actually a total change in structure of the executive government.

"I've always been here on the ground in the region and I will continue to be the region's advocate within the government.

"I've already sounded out some of our new parliamentary secretaries and our new ministers and already said to them, 'there's a few local issues I'll be drawing your attention to'."

Ms Berejiklian and her deputy John Barilaro unveiled the new cabinet line-up with a renewed focus on regional NSW after the countryside swung away from the coalition at the election.

Andrew Constance remains in charge of transport and Brad Hazzard holds on to health but the Nationals' Paul Toole will take charge of regional transport and roads.

Fellow Nationals Melinda Pavey and Adam Marshall have also been given prominent roles in areas that hurt the coalition on March 23.

Ms Pavey is bringing "fresh eyes" to the water portfolio, replacing Niall Blair who stepped away from the regional water portfolio after massive fish kills in the Murray-Darling river system.

Mr Marshall will be the Minister for Agriculture and Western NSW.

"We know there were some messages from the election last weekend. That's why there is a focus with the appointment of Melinda Pavey on water," Mr Barilaro said.

He said the separation of water and agriculture "allows us to focus on each of them particularly with a greater focus on the drought but more importantly on water."

Deputy Liberal leader Dominic Perrottet remains as treasurer. Fair Trading Minister Matt Kean has been given the newly combined energy and environment portfolio while MP Damien Tudehope has taken on finance.

Rob Stokes has been returned to the planning portfolio and David Elliott has been made police minister.

Sarah Mitchell takes over from Mr Stokes as Education Minister.

Anthony Roberts moves from planning to the counter terrorism and corrections portfolio.

Two MPs, Gabrielle Upton and Ray Williams, announced on Saturday they would not seek reappointment in the ministry. Mr Blair announced straight after the election that he would go to the backbench.