The objectives of this study were to investigate the hypotheses that: (1) Job satisfaction is related to medical specialty, the physician's nationality, and length of tenure. (2) The physician's attitude toward the Drug Utilization Review (DUR) program is related to medical specialty, the place of residency training, length of tenure, and job satisfaction. (3) The quality of drug prescribing is related to medical specialty, the place of residency training, length of tenure, job satisfaction, and the physician's attitude toward the DUR program. The results indicated a significant relationship between the physician's nationality and job satisfaction (P = 0.001), and between job satisfaction and the physician's attitude toward the DUR program (P 0.001). Medical specialty was a strong independent predictor of the quality of drug prescribing (P = 0.002). However, the other independent variables of the locale of residency training, length of tenure, job satisfaction, and the physician's attitude toward the DUR program were not related to drug prescribing.