On March 19, 1997, investigators from the Federal Bureau of Investigation, the Internal Revenue Service and the Department of Health and Human Services served search warrants at Columbia/HCA facilities in El Paso and on dozens of doctors with suspected ties to the company. Eight days after the initial raid, Scott signed his last SEC report as a hospital executive. Four months later, the board of directors pressured him to resign as chairman and CEO. He was succeeded by Thomas F. Frist Jr. Scott was paid $9.88 million in a settlement, and left owning 10 million shares of stock then worth more than $350 million. The directors had been warned in the company's annual public reports to stockholders that incentives Columbia/HCA offered doctors could run afoul of a federal anti-kickback law passed in order to limit or eliminate instances of conflicts of interest in Medicare and Medicaid.