MedicaidReimbursementLow impact
Notice of intent – OHA will amend the Medicaid State Plan to revise the rate method for public ground emergency medical transportation supplemental payments
Oregon Health Plan·OR · Emergency Medicine·Public notice
Effective date
Jul 1, 2024
We identified it
Jun 20, 2026
Summary
Oregon is reverting from an add-on rate method back to a cost-based method for public Ground Emergency Medical Transportation (GEMT) supplemental payments because the 2024 add-on rate approach did not produce anticipated results. This change affects how public GEMT providers receive supplemental Medicaid reimbursements but does not alter base rates.
Action Required
No immediate action required for most billing teams. Only public Ground Emergency Medical Transportation providers in Oregon who participate in the GEMT supplemental payment program need to review the cost-based reimbursement methodology changes. Private ambulance services and providers outside Oregon are not affected.