Aims: To implement a patient registry and collect data related to the care providedto people with type 2 diabetes in six specialized centers of three Latin Americancountries, measure the quality of such care using a standardized form (QUALIDIAB)that collects information on different quality of care indicators, and analyze thepotential of collecting this information for improving quality of care and conductingclinical research. Methods: We collected data on clinical, metabolic and therapeu-tic indicators, micro- and macrovascular complications, rate of use of diagnosticand therapeutic elements and hospitalization of patients with type 2 diabetes in sixdiabetes centers, four in Argentina and one each in Colombia and Peru. Results:We analyzed 1157 records from patients with type 2 diabetes (Argentina, 668;Colombia, 220; Peru, 269); 39 records were discarded because of data entry errorsor inconsistencies. The data demonstrated frequency performance deficiencies inseveral procedures, including foot and ocular fundus examination and variouscardiovascular screening tests. In contrast, HbA1cand cardiovascular risk factorassessments were performed with a greater frequency than recommended by inter-national guidelines. Management of insulin therapy was sub-optimal, and deficien-cies were also noted among diabetes education indicators. Conclusions: Patientregistry was successfully implemented in these clinics following an interactiveeducational program. The data obtained provide useful information as to deficien-cies in care and may be used to guide quality of care improvement efforts.