The Centers for Medicare and Medicaid Services (CMS) has approved the Intellectual Disabilities/Developmental Disabilities (ID/DD) Waiver Amendment effective May 1, 2017. Approved ID/DD Waiver Amendment Posted byMatt Westerfield May 11, 2017 0 Share: Related Articles MS SPA 23-0004 Ambulance Mileage submitted to CMS MS SPA 20-0024 Physician Upper Payment Limit (UPL) submitted to CMS New Pharmacy Rate Setting and Specialty Drug List vendor – effective June 1, 2021 MS SPA 22-0019 Preventive Services Vaccines 2017 Provider workshops for MississippiCAN and CHIP scheduled Eligible OB/GYNs must self-attest to receive enhanced payments