CHICAGO-A Chicago construction company owner pleaded guilty to paying millions of dollars in bribes to the former vice chairman of the Illinois Health Facilities Planning Board for directing construction projects to the company. The plea is the latest development in a kickback scandal that rocked the certificate-of-need board last year. Jacob Kiferbaum, president of Kiferbaum Construction Co., Deerfield, Ill., was indicted in May on multiple counts of mail and wire fraud, extortion and misapplication of funds. He pleaded guilty to a single count of attempted extortion and, with the successor company to Kiferbaum Construction, agreed to pay $7 million in restitution for inflating project costs to cover the kickbacks. Criminal cases are pending against Stuart Levine, former vice chairman of the planning board, and P. Nicholas Hurtgen, former Midwest director of Bear Stearns & Co. Kiferbaum's sentencing was postponed until the cases against his co-defendants have been completed.