The new six-storey ambulatory care building will be at the centre of the construction and some of the facilities include a mental health unit for older patients and drug and alcohol services.

NSW Health Minister Brad Hazzard said this is an investment worth more than $431 million.

"The new ambulatory care is a centre that caters for the entire region, not just the locals," Mr Hazzard said.

"It will have an increase of dialysis chairs, about 14 more than what currently exists, renewed training facilities, about 60 clinic rooms; this will be a 21^st century health facility for the Riverina.

"It's on-time and on-budget. The physical building should be complete by about 2020 ... but then it takes a few months to commission ... with hopefully an opening by early 2021."

Member for Wagga Dr Joe McGirr said it was a great opportunity to see the progress on stage three.

"It's something the community has talked about for some time," Dr McGirr said.

Mr Hazzard said the relocation of the NSW Breast Screen facility was an important step to encouraging more women to be checked out.

"Having the breast screen sitting adjacent to the shopping centre is a big plus as what we're now seeing is women just dropping in rather than having to book," he said.

"A lot of the issues are trying to encourage women to have a breast screen and it's clearly because some don't feel comfortable.

"The staff were telling me that they're seeing up to five more people dropping in and that's a big increase in the service that was provided before."

Last week, Dr McGirr and Mr Hazzard met to discuss reducing delays in coronial autopsies so grieving families may bury their loved ones sooner.

"We need to have, not just a compartmentalised look, but an entire look at the system," Mr Hazzard said.

"My feeling is that there are many people who pass away in very normal circumstances, but the current system then requires them to be transported for a full autopsy.

"I'm not sure if that is really necessary, but we're working through that."

Dr McGirr said this is an issue that does not just involve the health industry, but also the police and justice department.

"The families do suffer, I get many heartfelt complaints about the trauma associated with the fact that in a sudden traumatic death, a loved one's body has to go away to Newcastle," he said.

"I don't think there's any doubt that we can avoid that in a number of circumstances.

"I'm very pleased that there is now a high-level approach that the minister has led bringing together key decision-makers within the bureaucracy to look at this system and make sure where possible, we don't have unnecessary transfers and I think that would bring down the times and delays for everybody."