Frank Castro named health care practice leader of Willis North America

NEW YORK—Willis Group Holdings P.L.C. has named Frank Castro as health care practice leader of Willis North America, the broker announced Thursday.

Previously, Mr. Castro was senior vp, Willis North America national health care practice since 2007. He succeeds Mary Botkin, who retired in November 2011.

Mr. Castro will report to Eric Joost, chief executive of Willis North America Specialties.

He will remain based in Los Angeles.