This study aimed to clarify whether a regional palliative care intervention program, the OPTIM project, increased home hospice utilization, and explore the potential association between the home hospice utilization and the hospital staff's perceptions on home care. A questionnaire survey was conducted involving 154 physicians and 469 nurses. The rate of patients who made the transition to home-based care increased 967% in A Hospital, 295% in B Hospital, and 221% in C Hospital in 2010 compared to 2007, which was assumed to be 100. Staff of a hospital where many patients made the transition to home-based care were more likely to agree with the following statements concerning home care perspectives: “I started to consider that even cancer patients can be treated at home until the last moment of their life”, “I usually ask patients whether they wish to receive home-based care”, “We decided on coping strategies for sudden changes in the course of disease and a place to contact in advance”, and “I started to simplify treatment procedures, such as prescriptions during hospitalization for patients and their families to prepare for home-based care“.