Mataroria is a public health doctor, Equity Lead at Mahitahi Hauora PHO, and a Senior Lecturer in Medical Education at the University of Auckland. His research field is in performance measurement of healthcare systems, and his PhD is focused in medical education. He completed his Master of Public Health at Harvard University as a Fulbright Scholar in 2017.
Mataroria is a member of the Northland District Health Board, an advisory group member for Aktive Sport Auckland, and serves on the steering committee for the Ministry of Health Primary Care Models of Care Research Partnership. He is also a member of the Health Quality and Safety Commission Patient Experience of Care Governance Group.