To use historical averages to calculate the Federal Medical Assistance Percentage for disaster affected States for purposes of the Medicaid Program.

Directs the Secretary of Health and Human Services (HHS), with respect to a state in the calculation for it of the Federal Medical Assistance Percentage (FMAP), to substitute the state's average historical per capita income for a year in any instance for which the Secretary would use the state's per capita income for such year if: (1) in such year the state's per capita income exceeds the average historical per capita income by at least 8%; and (2) during such year or any of the two previous years a major disaster was declared in the state by the President under the Robert T. Stafford Disaster Relief and Emergency Assistance Act.