A whistleblower has criticised NSW’s healthcare watchdog.

The state’s Health Care Complaints Commission (HCCC) is tasked with assessing, investigating and prosecuting medical complaints.

The whistleblower says mounting delays and administrative mistakes could “jeopardise public health and safety”, and led to an exodus of many senior staff.

“Staff are feeling destroyed,” the whistleblower told the ABC on condition of anonymity.

“The turnover of half the workforce has affected the timeliness of assessments, resolutions, investigations and communication with our stakeholders.

“I worry about the long-term impact this has on health care in NSW.”

Detailed allegations are accessible here.