Medicaid rates are established by the Oklahoma Health Care Authority (OHCA).  These rates apply, unless otherwise indicated, for services paid by DHS on behalf of clients who are not Medicaid eligible or for services that are not compensable through Medicaid.  DHS staff takes applications and determines eligibility for Medicaid.  However, the Oklahoma Health Care Authority specifies the scope of medical services, contracts with health care providers, sets the Medicaid rates, and establishes eligibility criteria.