The healthcare industry is undergoing an IT-enabled transformation via the adoption of integrated HIT systems. The transformation is partially a result of government mandate rather than a nature evolution of technology. Thus, the effectiveness of system integration in the healthcare industry may deviate from what we have observed in other industries. The current research attempts to enrich our understanding of how HIT users, hospital nurses in particular, perceive system integration in their workplace. A field study is conducted. The results reveal a lack of association among different aspects of system integration, suggesting that HIT users may not view system integration as a holistic feature of modern HIT systems.