Deb Tatton

President, Global Clinical & Data Operations

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Deb Tatton is the President of Global Clinical Operations (GCO), leading a team of ~7,000 employees who deliver clinical trials across a broad range of therapeutic and specialty areas to bring new treatments to patients worldwide.

Work Experience

Deb has been with Parexel for over 26 years. Her extensive CRO experience spans every critical delivery function at Parexel, including data management, clinical operations and project/ portfolio management within Full Service and the Functional Service Provider (FSP) business units. In 2020, Deb was named to the PharmaVoice 100 as one of the 100 most inspiring people in life sciences for leadership of Parexel’s Global Clinical Operations


Deb holds a Master’s degree in Clinical Psychology from the University of Massachusetts and has spent time abroad at the University of Cannes, France, while earning her undergraduate degree. Deb is based in Parexel’s corporate headquarters in Newton, MA.