Low-Income Medicare Beneficiary Assistance Act of 1999

Low-Income Medicare Beneficiary Assistance Act of 1999 - Amends title XIX (Medicaid) of the Social Security Act (SSA) to require a State plan to provide for making medical assistance with respect to Medicare (SSA title XVIII) cost-sharing covered under the State plan available to a low-income individual on the date the low-income individual becomes entitled to benefits under part A (Hospital Insurance) of title XVIII during a presumptive eligibility period.