• David Greenspan, PhD, has been named VP, global R&D, at Tutogen Medical (Alachua, Florida). Most recently Greenspan was VP, Chief Technology Officer and corporate officer at NovaMin Technology, responsible for the creation of R&D for the company's oral care technology. Tutogen manufactures sterile biological implant products made from human (allograft) and animal (xenograft) tissue.

• Kate Cronin has been named managing director of the New York office of Ogilvy Public Relations Worldwide (New York) and will continue a leadership role in the organization's Global Healthcare Practice. Ogilvy is a marketing communications firm with offices in more than 60 cities around the world.

• Bruce Johnson has been promoted from COO to president of GHX (Westminster, Colorado). GHX provides services designed to help healthcare organizations reduce costs and improve margins.