Medicaid and CHIP Safety Net Preservation Act of 2004

[AI summary unavailable — showing source text] Medicaid and CHIP Safety Net Preservation Act of 2004 - Amends title XIX (Medicaid) of the Social Security Act (SSA) with respect to the authority of the Secretary of Health and Human Services to: (1) conduct research and demonstration projects under several programs, including Medicaid and SCHIP (State Children's Health Insurance) under SSA title XXI; and (2) waive certain statutory requirements for conducting these projects without congressional review. Prohibits the Secretary from imposing or approving under such authority: (1) a cap, limitation, or other restriction on payment to a State for amounts expended as medical assistance under the Medicaid program; (2) an elimination of, or modification limiting, the entitlement of an individual to receive any medical assistance for which Federal financial participation is claimed under Medicaid; (3) an elimination or modification of the amount, duration, or scope of early and periodic screening, diagnostic, and treatment services; or (4) an elimination or modification of the amount, duration, or scope of certain safety-net services, including those of a rural health clinic and a federally-qualified health center. Amends SSA title XI t…