Medicare Competitive Bidding Expansion Act of 1999

Medicare Competitive Bidding Expansion Act of 1999 - Permits the Secretary of Health and Human Services to exercise authority with regard to the Medicare prepaid competitive pricing demonstration project under the Balanced Budget Act of 1997, as well as certain other competitive bidding demonstration projects included under part B (Supplementary Medical Insurance) of title XVIII (Medicare) of the Social Security Act, without regard to any limitation on the number of projects, sites, or areas served, the population served, the period of authorization, or the need for any further monitoring, reports, or any termination otherwise required. Authorizes the Secretary to provide for payment under Medicare using competitive bidding for services not covered under such demonstration projects, including for organ transplant services, lithotripsy services, diagnostic imaging, and non-emergency ambulance services.