Medicaid Voluntary Contribution and Provider-Specific Tax Amendments of 1991

Medicaid Voluntary Contribution and Provider-Specific Tax Amendments of 1991 - Amends title XIX (Medicaid) of the Social Security Act to provide that, for purposes of determining Federal payments for State Medicaid expenses, the total amount expended under a State plan during a fiscal year as: (1) medical assistance shall be reduced by the sum of any revenues received by the State during the fiscal year from provider-related donations, other than bona fide provider-related donations and certain other donations, health care related taxes, other than broad-based health care related taxes, a broad-based health care related tax, if there is in effect a hold harmless provision with respect to the tax, or broad-based health care related taxes to the extent the amount of such taxes collected exceeds the greater of 25 percent or the State base percentage of the non-Federal share of the total amount expended under the State plan during the State fiscal year; and (2) administrative expenditures shall be reduced by the sum of any revenues received by the State during a fiscal quarter from such other donations, to the extent the amount of such donations exceeds ten percent of the amount expended under the State plan during the fiscal year for authorized administrative purposes.

Repeals the prohibition against limiting Federal payments under Medicaid to disproportionate share hospitals.

Limits aggregate payment adjustments for disproportionate share hospitals to 12 percent of the total Medicaid expenditures for a fiscal year.

Prohibits the use of disproportionate share payment adjustments to hold health care providers harmless for taxes.

Limits the authority to restrict disproportionate share hospital designations.

Sets forth reporting requirements.