The determinants of the utilization of professional services has been widely studied in the case of the Andersen-Newman (1973) framework. It seems likely that this framework which includes predisposing, enabling and illness level factors as leading to health services utilization might be usefully extended to the analysis of all professional service usage will illness level changing to professional service need level. This paper adapts the P Andersen-Newman framework to all professiona services by reformulating the framework and adds a strategic marketing approach in discussing its application.