WASHINGTON, D.C. (Dec. 4, 2014)—Senators Rob Portman (R-Ohio) and Ben Cardin (D-Md.) today introduced the Medicare Competitive Bidding Improvement Act of 2014. The Competitive Bidding Improvement Act, companion legislation to HR 4920, which Congressmen Pat Tiberi (R-Ohio) and John Larson (D-Conn.) introduced in the House in June, is a short and simple bill that would help deter speculative bidding in Medicare contract auctions.