This paper examines the complex and ongoing process of institutional and organizational change which concerns the provision of health services to inmates hosted by Italian prisons. In particular, the reality and the appearance of organizational change are confronted. The Law no. 419, dated November, 30th 1998 launched a deep reconfiguration of penitentiary health services, in an attempt to: 1) guarantee the provision of appropriate care to inmates; 2) merge the former Italian Penitentiary Health Care System and the Italian National Health Service (INHS); 3) introduce innovative organizational models to meet the special health needs of the imprisoned population; and 4) increase the timeliness and effectiveness of health and social services p...