Warning to Aboriginal and Torres Strait Islander people. The following article contains the name and image of a person who has died.

The New South Wales Health Minister will support all recommendations to improve Indigenous healthcare in the wake of the death of an Indigenous man who was misdiagnosed at Dubbo Hospital and died after being discharged.

Kamilaroi-Dunghutti man Ricky 'Dougie' Hampson Jr, 36, died on a friend's couch from two undiagnosed perforated duodenal ulcers.

Deputy State Coroner Erin Kennedy said the father of eight's death was "totally unnecessary" and "preventable", after he was misdiagnosed with cannabinoid hyperemesis syndrome (CHS) - an illness identified in long-term cannabis users - and then sent home the next day without a CT scan, in August 2021.

Despite a confessed fear of hospitals, he had checked into the emergency department with "ten out of ten" pain.

At an inquest last year, it was heard Mr Hampson Jnr was not given a scan in the 19 hours he spent at the hospital.

Ms Kennedy recommended Dr Sokol Nushaj, who admitted cognitive bias had led him to misdiagnose Mr Hampson Jnr, to the NSW healthcare complaints commission.

Along with the recommendation to NSW Health, she made five recommendations to the Western NSW Local Health District.

In a six-page response published this week, NSW Health Minister Ryan Park said all recommendations were supported, with implementation actions underway.

The statement said NSW Health was "committed to improving the health outcomes" for First Nations people and communities across NSW.

"I trust this response affirms NSW Health's commitment to continuous improvement and provision of safe, high-quality care for all people receiving care by the NSW Health system."

Ms Kennedy said Aboriginality was a key factor to consider in delivering healthcare, recommended Western NSW LHD establish a First Nations consultation and advisory group in collaboration with local Indigenous health organisations, and called for Dubbo Hospital to have face-to-face engagement with First Nations people.

She also called for specific training to ensure better treatment for all Indigenous people in the catchment area.

Mr Park said NSW Health was prioritising face-to-face training and would continue to work with local Aboriginal communities and had engaged with two Aboriginal consultants to review the framework for eLearning.

The inquest heard Mr Hampson Jr would have likely survived and gone on to live a normal life if he had been given the treatment he needed promptly.

In a statement to the ABC, Mr Hampson Jnr's father, Rick Hampson Snr, said he welcomed the response from NSW Health, but it had been three-and-a-half years of agony for his family.

"We want to see the on-the-ground changes at Dubbo Base Hospital including working with the local Aboriginal community to make sure they are involved in ensuring that these policies and training are implemented," he said.

"We would like to see more signage promoting the importance of these changes and to remind staff of the importance of health issues when it comes to First Nations people.

"We would also like to see more signage regarding the importance of stopping racism and how it kills our people when seeking life-saving treatment, and signage of Dougie's case to remind all health staff the importance of treating all people equally."

Speaking outside the Dubbo courthouse last year, he said he struggled to get up and breathe after his son had died.

"But we carry on in the hope that we get justice for our son," Mr Hampson said.

"After three long years of fighting for justice and change, we feel that we are finally on the path to justice after receiving these findings and recommendations. But we will never heal fully as a family until we receive justice for Dougie. This is only the beginning – there can be no healing without justice."

National Justice Project, who represented members of Mr Hampson's family, welcomed the response from NSW Health.

Senior Solicitor Karina Hawtrey said their commitments showed the significant impact Mr Hampson Jnr's death and the family's campaigning will have on the healthcare system for Indigenous patients across the state.

"The inquest found Dougie's death was preventable with the Coroner noting his case should help drive cultural safety, recognition and improvement in the healthcare system," she said.

"This response is just the start of the systemic change needed and recognition of the family's ongoing efforts to seek justice and accountability.

"The introduction of state-wide policy and updated training by NSW Health is an important step towards improving the treatment of First Nations patients and involving their communities in decision-making about healthcare."