The objective of this research is to document the process that a private hospital located in the city of Guadalajara with less than 100 employees went through to achieve certification by the Consejo de Salubridad General (CSG). The analysis is carried out focusing on the tripod of Peng’s strategy, with a comparative study between the situation before obtaining the recognition and after meeting the requirements. A review of the principal-agent relationship is carried out to explain the changes that occurred and the changes that occurred in the organization. The study method is based on the analysis of a set of interviews with hospital employees who were part of the transformation, as well as the collection of their perspectives on the direction the institution has taken and the benefits they have achieved. The results show the competitive advantage gained by the private hospital and the strategy they have used to maintain it.