Narcissistic personality disorder (NPD) is an underdiagnosed psychiatric condition in which there is minimal research to support a validated treatment regimen. As a result, it is unclear how mental health practitioners approach NPD patients and the outcomes of clinical management. Given this gap in current mental health practice, this article explores the attitudes of clinicians toward treating NPD patients and the clinician-reported outcomes of managing NPD patients. The study uses a qualitative and quantitative approach to analyze the results of a 16-question survey about clinicians’ experiences working with NPD patients. 173 participants were recruited from online psychology interest forums between April 2019 to August 2019. The data were analyzed using the Statistical Package for the Social Scientist (SPSS-26). The qualitative data showed that clinicians find NPD patients to be difficult and challenging. Additionally, clinicians report minimal experience treating NPD and high treatment drop-out rates. The quantitative data were evaluated using Pearson correlation coefficients. These results show that clinicians who view NPD as a diagnosis worth treating report more benefit from their care. These results also showed that participants who report formal didactic training in NPD have better results with their patients. The data also show that clinicians feel group therapy can be helpful in treating NPD, despite reporting that it is often not offered to NPD patients. This is an area that can direct future NPD research to develop a comprehensive approach to NPD management. (PsycInfo Database Record (c) 2021 APA, all rights reserved)