Concerns regarding environmental protection and sustainability are a common focus across multiple fields. Employee green behavior is regarded as the key to achieving environmental sustainability in every field. Researchers have provided valuable insights into the organizational determinants of employee green behavior. However, only a few studies have focused on the impact of individual attributes in promoting employee green behavior. Therefore, the present study aims to analyze the influence of individual attributes, including consciousness, moral reflectiveness, and environmental knowledge on employee green behavior. In addition, the study also analyzes the mediating effect of green self-efficacy. The study conducts an empirical analysis of the underlying research framework by conducting a survey among the nurses of the DHQ hospitals in Punjab, Pakistan. The sample was selected by applying convenience and purposive sampling techniques. The collected quantitative data was analyzed with the help of Partial Least Square – Structural Equation Modeling (PLS-SEM). The results revealed a significant and positive impact of consciousness and moral reflectiveness on employee green behavior. In addition, the study also reported the significant mediating impact of green self-efficacy on the direct correlations. Thus, the findings of the study hold significant implications for the policymakers and the employees of the healthcare sector.