This study evaluates the effectiveness of multichannel educational strategies for healthcare provider engagement across 15 institutions in three countries, involving 2,847 providers. Using a mixed-methods approach, it assessed engagement, knowledge retention, and clinical outcomes through quantitative metrics and qualitative feedback. Multichannel education, combining face-to-face and digital platforms, increased course completion by 43%, knowledge retention by 37%, and provider satisfaction by 78%, while reducing medical errors by 25%. Key success factors include platform integration, personalized learning, real-time feedback, and technical support. Barriers include resource constraints and digital literacy challenges. The study proposes a strategic framework for implementation and highlights implications for healthcare education policy. Future research should explore long-term impacts, cost-effectiveness, and emerging technologies like virtual reality and AI.