Background: Variation in clinical performance is attributable to factors outside academic and clinical skills. Selection processes and training programs for medical professionals should be adapted to consider these behavioral factors, which may vary across contexts. This study was conducted to identify behavioral competencies considered relevant for effective medical practice among medical students and practitioners in Nigeria.Methods: We drew on a scoping review to develop a starting list of behavioral attributes that correlate with effective service provision. Drawing on nominal group technique exercises with 17 medical students and 11 physicians, this starting list was modified with scoring and ranking of selected competencies. We compared the list of competencies and rankings between medical students, doctors, and the scoping review.Results: The scoping review identified nine articles for full-text review, resulting in a starting list of 21 behavioral competencies defined in studies conducted in non-African countries. The nominal group technique exercises conducted with medical students and doctors yielded a condensed list of 32 and 27 behavioral competencies respectively. For doctor-client interactions, the behavioral competencies considered most important included effective communication and patient-centeredness. Whereas, for doctor-colleague interactions, team work, respectfulness, and management ability were ranked highly. However, there were clear divergences between groups and with the scoping review.Conclusions: This study is one of the first to identify the perspectives of medical students and physicians on behavioral competencies considered essential for effective medical practice in an African country. We found differences in the perspectives of medical physicians and students, and in the prioritized competencies across contexts. This illustrates the need for careful consideration in identifying subject matter experts and in generalizing competencies across contexts. Future research in this field in Nigeria should examine effective ways of testing for key behavioral competencies among medical students and for residency programs. Also, investigating the perspectives of medical faculty and administrators on important competencies, and exploring the generalizability of these competencies across cultures in Nigeria should be considered.