This article from the Kaiser Family Foundation is an excellent overview of the myriad ways that Medicaid delivers and funds healthcare to beneficiaries.  It provides brief descriptions on the alphabet soup of plans such as primary care case management (PCCM), managed care organzations (MCOs), prepaid health plans (PHPs), patient-centered medical home (PCMH), and accountable care organizations (ACOs).  It also provides brief descriptions on the payment models such as fee-for-service (FFS), capitation (no acronym!), pay-for-performance (P4P), and episode of care (EOC) payments.  These and more terms are defined.  A necessary read for those involved in Medicaid.