A system of non-consultant peripheral clinics (NCPCs) established on the Isle of Wight is described. For the first phase of the study 182 diabetics attending the consultant clinic were allocated to the appropriate peripheral clinic (group 1). In the second phase, 152 new referrals were prospectively allocated between the consultant and appropriate peripheral clinics (group 2). Evaluation was made of the patients' random blood sugar and glycosylated haemoglobin. The savings in cost and time to patients resulted in over 90% of patients preferring the peripheral clinics. NCPCs are discussed in relation to hospital-based clinics and to other alternative systems of care. It is concluded that NCPCs could be incorporated into the diabetic service in other regions in the United Kingdom with advantages to diabetics and hospital services alike. These peripheral clinics are suited to all types of diabetics and perhaps the only clinical restriction is the desirability for metabolic deterioration to be managed by a consultant clinic until the patient is satisfactory.