Radiologix taps new top exec

Stephen D. Linehan has been named president and CEO of the imaging services provider Radiologix. Linehan steps in for Mark S. Martin, who has resigned as president and COO. During his 30-year career, Linehan has held executive and board-level positions with public and private healthcare companies, as president and CEO of Rotech Healthcare, a provider of home respiratory care and durable medical equipment and services to patients with breathing disorders, and as president of Value Rx, a $1 billion pharmacy benefits management unit of Value Health.