Type 2 Diabetes (T2D) and prediabetes (PD) are a major challenge for the NZ health system. Disproportionately affecting Māori and Pacific people, it is a leading driver in health inequalities. There are no nation-wide effective and widely-adopted interventions, for managing these conditions in primary care. Our team along with community partners have co-created a PD/T2D lifestyle model of care, which we will evaluate and implement widely across NZ. Phase 1 is an audit and process evaluation of the model currently used in South Auckland and Taupō. Outcomes will guide initiative refinement. Phase 2 is the implementation of the refined model into one Auckland PHO (19 medical centres). Following a comprehensive dissemination plan and training of medical teams, Phase 3 will include ongoing implementation of the model of care more widely throughout NZ and a concurrent determination of the effectiveness, uptake and maintenance of this work.