The concept of corporate social responsibility (CSR) is an ever-evolving concept in the field of business management. Even in 2021, its boundaries are evolving and researchers are linking the concept of CSR to different variables to achieve different outcomes. However, the concept of CSR in the healthcare sector is not well-explored in prior literature. The current study is an application of social identity theory to induce electronic word-of-mouth (eWOM) from consumers for a specific brand, through its CSR engagement on social media (CSRS) and consumer-company identification (CCI) in the healthcare sector of an emerging economy. The data of the current survey were collected from different patients of four large hospitals in a large city through a self-administered questionnaire (paper-pencil technique). To validate different hypotheses of the current study, the authors employed the structural-equation-modeling (SEM) technique using AMOS software. The output of SEM analysis confirmed that CSRS positively influences eWOM, and CCI mediates this relationship. The findings of the current study will be helpful for policymakers in the healthcare industry to improve their understanding of CSRS and CCI, inducing eWOM through the lens of social identity theory.