Identity Development Evolution and Sharing (IDEAS) reduces provider stigma, but few have been trained to implement IDEAS, highlighting a need for implementation strategies that facilitate uptake. We evaluated whether external facilitation successfully supported IDEAS implementation and whether IDEAS reduced provider stigma within and across sites irrespective of implementation barriers and facilitators. Key informants from 10 sites completed interviews and surveys of appropriateness, acceptability, and feasibility. Interviews were analyzed using the Consolidated Framework for Implementation Research guidelines. Intervention effectiveness was measured via paired