This review article shows the development and organization of the "Croatian Model" of organization of health care for diabetic patients from Professor Vuk Vrhovac to this day, and its inclusion in the St. Vincent Declaration-a group of recommendations agreed upon in 1989 with the aim to decrease the morbidity and mortality of diabetes and its complications. The Model is organized on primary, secondary and terciary levels of health care. After the administrative changes of 1993, specialized health care for diabetic patients is delivered through County and Regional Centres for Diabetes and the Diabetes Reference Centre (the Vuk Vrhovac Clinic for Diabetes, Endocrinology and Metabolic Diseases), a scientific and educational institution and a WHO Collaborating Centre. Mention is made of the Croatian Diabetes Registry and statistical data on the morbidity (the prevalence of diabetes in Croatia is 2.37%) and mortality of diabetes mellitus and its complications, of organization of health care for diabetic patients, their medical treatment and care in Croatia.