On May 27, 2015, the Centers for Medicare and Medicaid Services (“CMS”) published a 653-page proposed rule affecting the thirty-nine states (plus the District of Columbia) that use managed care organizations (“MCOs”) to administer their Medicaid benefits. This represents the first major overhaul of the Medicaid managed care system since the rules were established in 2002, now covering approximately seventy percent of all Medicaid enrollees.

Public comments are due July 27, 2015, which gives health plans, providers, consumer groups, and even state Medicaid directors a narrow window to identify potential areas of concern and to propose solutions for formal CMS consideration. While some issues will align important stakeholder groups, others are likely to remain contested during the comment period and up to publication of the final rule.