Day Surgery (DS) and prehospitalization emerged in Italy—as it had previously in the United States and other European countries—as able to improve healthcare and reduce costs. The purpose of this study was to evaluate the impact of the Nurse Case Manager (NCM) Model on patients undergoing DS procedures. The study assessed the intensity of pain, anxiety, and stress factors, and the level of discomfort experienced. The quasi-experimental study design involved two groups of patients (at two different DS hospital centers): one using the NCM model (Ward A) the other based on team nursing (Ward B). All patients undergoing DS for (a) varicose veins, (b) inguinal hernia, (c) breast biopsy, and (d) hemorrhoids were included. A valid questionnaire interview based on 22 questions was used (1) the morning before surgery, (2) the evening after surgery, and (3) 48 hr after the operation, by telephone. Of the145 patients that were involved, 66 were from Ward A (45.5%) and 79 from Ward B (54.5%). When patient care was based on the NCM Model (Ward A), it seemed that (a) the pathway before DS was more efficient; (b) they perceived lower levels of perioperative anxiety and pain; and (c) they recognized the DS center as a unique point of reference for all postoperative problems.