National Medical Enterprises Inc., Los Angeles, has...

National Medical Enterprises Inc., Los Angeles, has named Alan E. London senior vice president and medical director of the newly established medical affairs and health plans department for the hospital group. London previously was senior vice president-health plans and contracting. In addition, Clive Riddle has been named vice president and chief executive of health plans operations, and Nancee Mendenhall has been named vice president-contracting and business development.