John Kritzmacher, former EVP and CFO of Global Crossing, has jumped over to WebMD to be its SVP of business operations, organizational planning and structure. Human Resources, Corporate Communications and Strategy will report directly to Kritzmacher, who in turn reports to WebMD CEO Cavan Redmond. Before WebMD and Global Crossing, Kritzmacher was the chief operating officer for Alcatel-Lucent. Monday’s announcement is one of several recent changes at the health portal, which has been fighting for advertisers. Changes include the June hiring of CEO Redmond and last month’s magazine revamp.

Healthcare information company Wolters Kluwer has named Cathy Wolfe president and CEO of the medical research division. Wolfe, who joined Wolters Kluwer in 1996, most recently served as CEO of Wolters Kluwer UK. She will replace Karen Abramson, who has headed up medical research for the past six years. Abramson was named president and CEO of the company’s tax and accounting business unit, CCH, in September.