With the departure of Kelly Dencker this week, MS&L has lost four senior healthcare execs since the beginning of the year. MS&L Worldwide is a division of Publicis Groupe.

Unlike MaryEllen O’Donohue, Monique da Silva, and Wendy Lund, who left for other large global firms, Dencker signed with NJ-based Coyne PR as SVP and head of their healthcare practice. Coyne at last check, had under a hundred people and billings of around $12 million.

O’Donohue, da Silva, and Lund left for Cohn & Wolfe, Ogilvy PR, and Cohn & Wolfe’s GCI Health respectively, all divisions of the massive WPP Group (NASDAQ: WPPGY).

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