Abstract: Part of an international project, the aim of this study was to evaluate a nurse managed primary health care clinic (Mana Health Clinic) from the perspectives of users, funders, and providers of clinical services in order to identify factors which contribute to success. The method used was Fourth Generation Evaluation (FGE) whereby, consistent with the methodological precepts of the constructivist enquiry paradigm, there was active involvement of clients in the process and outcome of the evaluation. Open-ended interviews were conducted with 13 individuals and one focus group. The data yielded four main categories: factors that contribute to success; contrasting past experience of health care with that of nurse-managed care; the effectiveness of nurse-managed care; and suggestions for change in current practice. The authors note that the results to date support a tentative conclusion of success for the clinic. As the study is on-going, summaries of the four categories were fed back to the participants for further discussion and interpretation and eventual integration with data from the similar study being undertaken in the United States. The authors conclude that this paper demonstrates how the use of an appropriate method of evaluation can itself contribute to the success of the nurse managed clinic.