Sandra E. Stiles, Joseph A. Boystak and...

Sandra E. Stiles, Joseph A. Boystak and Roger Kimmel have been elected directors of American Health Services Corp., Newport Beach.

They succeed former directors Gerald Shefsky, Herman Becker-Fluegel, Garry W. Bond and David H. Brown, who resigned.

Stiles is a director of OmniCorp International BV and president of OmniCorp Holdings Inc. Boystak is an independent investment banker specializing in health-care related financing, and Kimmel is a New York-based partner in the law firm of Latham & Watkins. American Health develops and operates medical diagnostic imaging and treatment centers.