HIV remains a complex disease that requires comprehensive, coordinated care to ensure optimal outcomes. In the USA, interdisciplinary models of care have developed over time to optimize treatment outcomes. These models may be increasingly important in an era of healthcare reform in the USA. A qualitative study of nine clinical sites funded by the Ryan White HIV/AIDS Program (RWHAP), the federally funded "safety net" program for uninsured and underinsured people living with HIV, was undertaken to identify components of successful models of interdisciplinary HIV care. Findings suggest that these include: (1) patient-centered, one-stop-shop approaches with integrated or co-located services; (2) diverse teams of clinical and nonclinical providers; (3) a site culture that promotes a stigma reducing environment for clients; (4) the availability of a comprehensive array of medical, behavioral health, and psychosocial services; (5) effective communication strategies, including electronic health records (EHRs); and (6) a focus on quality. The importance of RWHAP funding in sustaining these programs is highlighted.