Diabetes is a priority for the health sector. It is more common in Maori and Pacific people, who also have poorer outcomes. Health outcomes are better if diabetes is well controlled but many people with diabetes have inadequate control. As currently delivered, secondary care services are unable to meet the demand. We developed a model of specialist clinics held in primary care facilities that showed promise by increasing access to specialist input and upskilling the primary care team in diabetes management. This project will evaluate this model and determine whether it is a cost-effective way of improving diabetes care. We will evaluate diabetes management at a primary health service with high Maori and Pacific population before and 12 months after introducing a similar specialist clinic. We will look at measures of diabetic care across the practice and do a qualitative analysis of experiences of staff and patients with the intervention.