Professionalism Learning Underscored by Service (PLUS) is a longitudinal service-learning program embedded within the McGovern Medical School curriculum. Through partnerships with community organizations across Houston, PLUS provides students with structured opportunities to apply classroom learning in real-world settings while exploring the social and environmental factors that shape health. These experiences reinforce key concepts in the pre-clerkship curriculum, promote professional identity formation, and prepare students to provide compassionate, community-informed care throughout their medical training and future practice.