Qualified Medicare Beneficiary Enrollment Improvement and Protection Act of 1991

Qualified Medicare Beneficiary Enrollment Improvement and Protection Act of 1991 - Amends title XVIII (Medicare) of the Social Security Act to direct the Secretary of Health and Human Services to include in the annual mailing to Medicare beneficiaries: (1) a clear and simple explanation of the availability of and the requirements to qualify for Medicaid (title XIX of the Social Security Act) payment of their premiums, deductibles, and copayments under Medicare; (2) the toll-free telephone number to be established by the Secretary for information on such assistance; and (3) an initial application for such assistance.

Directs the Secretary to develop a poster containing the information listed above and distribute it to service providers in order to publicize the availability of such assistance.

Amends the Medicaid program to direct the Secretary to: (1) establish a process for using local Social Security Administration offices for the distribution and receipt of applications for such assistance; (2) transmit such applications to the appropriate State agency; (3) develop a form to be available at such offices which individuals may use to request additional information on or an application for such assistance; and (4) distribute such form to entities receiving grants for programs to provide services to older individuals.

Requires States to provide for a process for receiving, distributing, and processing applications for such assistance and for responding to requests for information on or applications for such assistance.

Allows individuals who qualified during a certain period for Medicaid payment of Medicare costs to temporarily apply for retroactive payment of any medical costs incurred but not paid under a State plan required to provide for making Medicaid payment of Medicare costs available to Medicare beneficiaries.

Allows States, in determining the income level for individuals who seek to qualify for Medicaid payment of Medicare costs, to exclude expenses for medical care incurred by the individual that are not reimbursed under a public program of the State or political subdivision thereof, a health plan, or Medicare.

Directs the Secretary to establish a grant program to provide outreach services to enable individuals who are entitled to receive Medicaid payment of Medicare costs to receive such assistance. Authorizes appropriations.