Medicaid and SCHIP Presumptive Eligibility Expansion Act of 1999 - Amends title XIX (Medicaid) of the Social Security Act (SSA) to provide for additional entities qualified to determine Medicaid presumptive eligibility for low-income children.

Amends SSA title XIX (Children's Health Insurance) (CHIP) to allow a State to elect to apply under CHIP the Medicaid requirements for entities qualified to determine presumptive eligibility.

Waives the State matching requirement for outreach services if the State elects to use presumptive eligibility for both Medicaid and CHIP. Provides for the treatment of enrollment incentives.