An audit study using standardized patients (SPs) was conducted in public and private primary care facilities in Tunis. Thirteen trained SPs presented a consistent case of acute bronchitis under two socio-economic profiles (poor and middle-class). After each consultation, SPs completed a structured paper questionnaire on clinical care, costs, and communication. Supervisors debriefed SPs and transferred data into an electronic format, coding drugs using national guidelines and official pharmacy price lists. In total, 260 provider–patient interactions were collected, forming the final dataset for analysis.