Ethical clinical practice requires cultural competency. In the United States, Hispanics report stronger attitudinal barriers to drug abuse treatment than any other racial/ethnic group. Hispanics report feeling that drug abuse treatment providers do not understand their unique cultural needs and are unfamiliar with their experiences of discrimination and immigration. Using this case study to explore broader ethical and policy issues, this study investigates the extent to which US universities train counselors to address the culturally specific needs of Hispanic patients and how this is reflected in practice in Los Angeles County. Based on a content analysis of the required courses, syllabi, and course descriptions at 30 universities related to culture/race/racism/ethnicity/diversity at the undergraduate and graduate levels on the addiction therapist track, and thematic analysis of eight in-depth interviews with counselors working in outpatient rehabilitation centers in Los Angeles, I argue that cultural competency education for drug abuse counselors is too surface level and infrequent to adequately prepare students for a career in addiction counseling for Hispanic clients. Significant changes must be made to how cultural diversity is valued and prioritized in the field of psychology to provide better care for Hispanic people with a substance use disorder and fulfill the moral obligation to eliminate this health disparity. Although this study focuses on counselors in Los Angeles, these findings are relevant for professionals and healthcare systems across the United States and beyond who seek to provide equitable and effective care for Hispanic patients.