DC Medicaid Transition Provider Information

Welcome to Gainwell Technologies’ temporary resource for DC Medicaid provider communication. This site provides important documents and resources that you may need prior to the transition of DC Medicaid from Conduent to Gainwell. Here you can find communications about the transition and updated companion guides. Please check back here before the end of November 2025, to find out more about registration for training and instructions for registering in the new DC MMIS Provider Portal.

DC_837D FFS Claims Companion Guide v1.5.pdf
DC_837I FFS Claims Companion Guide v1.5.pdf
DC_837P FFS Claims Companion Guide v1.4.pdf
DC_5010 Appendix_A_Vendor Specs v1.3.pdf
DC_835rx Pharmacy Remittance_Companion_Guide v1.2.pdf
DC_270_271 – Eligibility Inquiry and Response Companion Guide v1.1.pdf
DC_276_277FFS – FFS Claims Companion Guide v1.1.pdf
DC_6020_X12_275 – Companion Guide v1.1.pdf