Local member Troy Grant told the Daily Liberal a radiotherapy unit would be included in master planning for the clinical expansion zone in the next phase of building work at Dubbo Hospital.

"Radiotherapy will be my number one health priority now that $150 million has been secured to fund stages three and four of the hospital redevelopment," he said.

"A radiotherapy bunker is a unique type of building. We need to grow the space at the hospital while we are building what is already in the clinical services plan to meet need as it increases."

Mr Grant's radiotherapy promise comes as the Western NSW Local Health District continues the process of securing a full-time cancer specialist for Dubbo Hospital.

The medical oncologist will be working in Dubbo five days a week from May.

Mr Grant said the government had already allocated $91.3 million for stages one and two of the Dubbo Hospital redevelopment.New operating theatres, a maternity unit and day surgery facilities were due to be completed by the end of the year. Refurbishment of the hospital's renal unit was expected to be finished six months later.

"We will then immediately move forward with stages three and four of the redevelopment," Mr Grant said.

The work will include an emergency department, imaging facilities, ambulatory care centre and cardiac catheterisation laboratory in a three-storey building and a new medical inpatient ward completing the northern wing of the stage one and two clinical services building.

Upgrades to the oncology, cardiovascular and stroke units will allow the intensive care unit to expand and meet growing demand.

There will be a new front of house entry in Myall Street, a drop-off zone and additional car parking.

"The money for the hospital is not a promise - it is a reality," Mr Grant said.

"We expect to move ahead with radiotherapy services in the next term of government."

Mr Grant said there was disbelief when radiotherapy services went to Orange instead of Dubbo.

"Improved cancer services had been promised for a decade and were not delivered," he said.

"There was no point in crying over spilt milk or complaining that Orange took advantage of data from a catchment area truly serviced by Dubbo to advance and expedite the demands and capability of Orange.

"A political decision was made by the previous government because the Orange bid for cancer services was more organised and co-ordinated. People in that community were prepared to work together for the common good.

"After my election I was determined to lead the charge to ensure our hospital got the services Dubbo and the western region needed and deserved.

"I wanted the state and federal members and Dubbo City Council to work together without the bickering and infighting that had been evident in council in the past.

"The latest improvements for Dubbo Hospital show what can be achieved by working together."Mr Grant said the challenge for government was not putting money into radiotherapy equipment.

"It is getting the human resource," he said.

"Radiotherapy is a highly specialised field. We need to get the technical and medical people to run two accelerators for the service to operate efficiently."

Mr Grant said a recent survey conducted by his office clearly outlined community priorities on health.

"I asked people to rank their preferences for the Dubbo Hospital precinct. Securing more medical specialists was first followed in order of importance by radiotherapy, chemotherapy, increased renal services, a training centre for doctors, interns and nurses, a neonatal special care nursery, paediatrics and sterilisation department improvements. Childcare ranked last."

Mr Grant said providing access to services was a perennial challenge for government.

"Access has been significantly improved but we absolutely recognise there is more to do - it is like turning the tide. The rate of change has been immense since we came into government three-and-a-half years ago.

"The broader demand on health is rapidly expanding and could consume the entire state budget if we were capable of meeting every need. That is why it is so important to have efficiencies and complementary services within the region.

"Dubbo's position as the capital of western NSW by definition means our city needs certain things, including a radiotherapy unit and enhanced medical services."

Mr Grant said he didn't have to twist the arm of health minister Jillian Skinner to get the funding for Dubbo Hospital.

"The minister is one of the biggest supporters of Dubbo next to me," he said.

"She has been brilliant and is enormously proud of what has been achieved here."