OBJECTIVES: Scholars have highlighted the importance of preventing hospital admissions and readmissions for individuals with costly chronic conditions. Providing effective care management strategies can help reduce inpatient admissions, thereby reducing rising health care costs. However, implementing effective care management strategies may be more difficult for independent physician associations (IPAs) that contract with multiple organizations that have competing interests and agendas. This study aims to identify and investigate strategies that facilitate the implementation of evidence-based best practices among IPAs. STUDY DESIGN: The research synthesized peer-reviewed literature to identify best practices in chronic disease management for Medicare beneficiaries. Subsequently, 20 key informant interviews were conducted to explore barriers and facilitators in adapting these best practices in IPA settings. Informant interviews were conducted with 3 key groups: executives, medical directors, and care managers. METHODS: Key informant interviews were conducted to explore barriers and facilitators in implementing best care management practices. RESULTS: Key informants provided unique insights regarding the challenges of implementing best care management practices among IPAs. These challenges included implementing and sustaining the operations of evidence-based care management programs while maintaining contractual obligations to health plans, engaging physicians in large and diverse networks and building high-touch programs in large geographic areas using risk-stratifying algorithms. CONCLUSIONS: IPA managed care organizations require unique considerations in regard to selected strategies used to manage chronic disease in Medicare populations. These considerations are critical for optimal management of the population, particularly in a risk-based or pay-for-performance environment.