To examine the extent to which accountable care organizations (s) formally incorporate postacute care providers.
The National Survey of s ( = 269, response rate 66 percent).
We report statistics on s' formal inclusion of postacute care providers and the organizational characteristics and clinical capabilities of s that have postacute care.
Half of s formally include at least one postacute service, with inclusion at higher rates in s with commercial (64 percent) and Medicaid contracts (70 percent) compared to s with Medicare contracts only (45 percent). s that have a formal relationship with a postacute provider are more likely to have advanced transition management, end of life planning, readmission prevention, and care management capabilities.
Many s have not formally engaged postacute care, which may leave room to improve service integration and care management.