The new Delaware Medicaid Enterprise System (DMES) will replace the Medicaid Management Information System (MMIS) on December 29, 2016. MDDE will use DMES to enroll, inform, educate, reimburse, and update their Delaware Medical Assistance Program (DMAP) providers and process their claims. DMES will offer many new features. In order to make a smooth transition, please click the links to download and view the alerts that reflect the Go-Live Date Change from 1/1/17 to 12/29/16. They contain important information about last submission dates in the current system and other key dates.