The purpose of this study was to investigate the factors that affect the performance of health insurance review department workers of Korean tertiary hospitals, general hospitals and hospitals. A survey was conducted through structured questionnaire for chiefs and members of health insurance review departments of hospitals, and data from 1,064 respondents were utilized in the final analysis. Survey items included general characteristics of the hospitals and health insurance review departments, job satisfaction and organizational commitment as organizational effectiveness. As multiple linear regression results, in the case of chiefs, the most significantly related factor to job satisfaction was a monthly salary. The other related factor was job stress. In the case of members, the most significantly related factor was job stress. The other related factors were more monthly salary, religious believer, and less complex workplace, in order. As organizational commitment, in the case of chiefs, the most significantly related factor was a monthly salary. The other related factor was more clinical experience. In the case of members, the most significantly related factor was job stress. The other related factors were more monthly salary, tertiary hospitals, more age, and less complex workplace, in order.