Mary Smiddy, head of Porter Novelli's London healthcare group, will join Tonic Life Communications, which is part of Huntsworth Health, as CEO next month.
The hire follows the high-profile exits of former chief Scott Clark and fellow founders Moira Gitsham and Oliver Parsons six months ago.
Smiddy, a nurse and psychological counselor from Ireland, has held top positions at Weber Shandwick and Edelman in Middle East/Africa, Australia and Singapore.
Neal Matheson, Huntsworth Health CEO, said Smiddy's expertise in the Middle East and Singapore will bolster Tonic's expansion plans there.
Smiddy also will counsel Tonic's pan-European and US teams.
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