The fast growing deployment of mobile information technologies in the healthcare sector presents valuable opportunities to explore the impact of mobile technologies in this industry. As the demand on the health dollar increases, many healthcare providers throughout the world are starting to take advantage of mobile technologies as part of their key initiatives to provide better quality of service. The purpose of this study was to identify the critical factors that contribute to the success of the MARGE Wireless Bed Management System (WBMS) in a New Zealand hospital. The study found that factors, such as Hardware Selection, System Usability, Mobility, Integration, Information Quality, Efficiency, Improved Patient Care and Positive Organisational Image all contributed to the success of the MARGE WBMS.