He was previously a Clinical Lead for at Ko Awatea, the Centre for Healthcare Innovation and Improvement at Middlemore Hospital. His research field is in performance measurement of healthcare systems, and has completed his PhD in medical education. He then completed his Masters of Public Health at Harvard University as a Fulbright and Frank Knox Fellow in 2017. Mataroria is passionate improving the healthcare through public health and medical education, and reducing disparities through mobile health technologies.