Medicare Competitive Acquisition Improvement Act of 2004

Medicare Competitive Acquisition Improvement Act of 2004 - Amends title XVIII (Medicare) of the Social Security Act, as amended by the Medicare Prescription Drug, Improvement, and Moderization Act of 2003, to revise requirements for the phase-in among competitive acquisition areas of Medicare programs for acquisition of competitvely priced items and services. Prescribes a phase-in schedule from FY 2005 through 2007 (currently from FY 2007 through 2009).

Revises the conditions for awarding a competitive acquisition contract to require an entity to have an active National Supplier Clearinghouse identification number and comply with specified additional requirements, including all Federal and State licensure and regulatory requirements. Requires such entity also not to have been suspended within the 12 months preceding its bid for billing for items or services not furnished.