An occupational survey using a task inventory as survey instrument was conducted at four National Health Service Corps clinics providing primary ambulatory care. The prime objective of the study was to determine whether the methodology of task analysis could validly be applied to obtain data of potential value in improving personnel management in clinics. It is concluded that the task inventory could generate such data.A first level analysis provides some interpretations of task interrelationships and role definition among clinic staff. In the clinics studied, no staff member's role was sufficiently well defined for efficient utilization of his capabilities. In particular, many tasks performed by the physicians and nurses could also be performed by less well-trained personnel. A number of steps are suggested for examining the task profiles of clinic staff and identifying areas of potential task redistribution.Also discussed are ways of improving the presentation of data obtained through task analysis to enhance the data's usefulness to local clinic management.