To collect primary care pediatricians' opinions on the two models of nursing care organization (family nursing and pediatric nursing) in primary care centers: the advantages of each model, pediatricians' preferred model and suggestions for implantation.Delphi study, carried out between October 1999 and January 2000, among 58 primary care pediatricians from area 11 in Madrid.The advantages of pediatric nursing were better coordination with the pediatrician, improved motivation and training of nursing professionals, uniform criteria, greater knowledge of the patient, preference of the families, increased activity, and separation of children and adults. Agreement on these factors was greater than 92%, with a rating higher than 4(on a scale from 0 to 5 scale). The advantages of family nursing were financial savings, greater social and familial knowledge, preference of the nursing staff, the possibility of staff changes, and continuity in the followup of teenagers. Agreement was variable (2961%) with a lower rating (2.8 to 3.6) according to each question. Ninety six percent of the pediatricians considered pediatric nursing to be the most suitable organizational alternative. Seventy five percent did not provide any suggestions for the implementation of their preferred model but agreement on initiatives proposed by the remaining participants was between 68 and 100%.Primary care pediatricians consider that in their daily work pediatric nursing is more advantageous than family nursing.