# Garry Clark

> Garry Clark is Senior Vice President and Chief Marketing and Communications Officer at Quest Diagnostics, where he connects corporate reputation, brand strategy, customer feedback, support, communications, and frontline enablement. A University of Melbourne graduate in both genetics and history, he built his career across science communications, medical technology, and customer experience before taking Quest's top marketing role in 2023.

- **Role:** Senior Vice President and Chief Marketing and Communications Officer at Quest Diagnostics
- **Organizations:** Quest Diagnostics, Zimmer Biomet, Ricochet PR, University of Melbourne
- **Education:** Bachelor's degree in Genetics, University of Melbourne, Bachelor's degree in History, University of Melbourne
- **Known for:** Advanced from marketing and customer-experience leadership to Senior Vice President and Chief Marketing and Communications Officer at Quest Diagnostics., Built a cross-functional remit at Quest spanning reputation, brand, marketing execution, external communications, customer support, voice-of-customer work and frontline enablement., Helped establish stakeholder alignment for a Quest customer-experience measurement program that used feedback to guide improvements at customer locations.

## Career timeline

- **2009** — Worked at Ricochet PR in science and industry communications; a Bio-IT World submission identified him as a senior account executive.
- **2011** — Served in communications at Zimmer, including as a media contact and spokesperson; Quest later described him as the leader of Zimmer Biomet's Integrated Marketing team with responsibilities supporting investor relations and crisis communications.
- **2013** — Joined Quest Diagnostics.
- **2019** — As Executive Director of Marketing Services, presented Quest's adaptation of the Tell Me More program through its Everyday Excellence initiative at the Gold Humanism Summit.
- **2023** — Succeeded James M. Humphreys as Quest Diagnostics' chief marketing officer after serving as Vice President, Brand & Customer Experience.
- **2024** — Appeared on the New York Giants' Giants Huddle podcast to discuss the Quest-Giants partnership and the company's purpose.

## Achievements

- Advanced from marketing and customer-experience leadership to Senior Vice President and Chief Marketing and Communications Officer at Quest Diagnostics.
- Built a cross-functional remit at Quest spanning reputation, brand, marketing execution, external communications, customer support, voice-of-customer work and frontline enablement.
- Helped establish stakeholder alignment for a Quest customer-experience measurement program that used feedback to guide improvements at customer locations.
- Represented Quest's Everyday Excellence implementation at the 2019 Gold Humanism Summit.
- Built experience across science public relations, integrated medical-technology marketing, investor relations and crisis communications before joining Quest.

## Latest updates

- **2025-11** — Quest's published executive biography continued to list Clark as Senior Vice President and Chief Marketing and Communications Officer, responsible for reputation, brand, customer experience and external communications.
- **2024-11** — Appeared on the Giants Huddle podcast to discuss Quest Diagnostics' partnership with the New York Giants and the company's purpose.
- **2024-06** — Public corporate leadership listings identified Clark in Quest's senior management as its chief marketing and communications officer.

## Links

- Website: https://www.questdiagnostics.com/
- LinkedIn: http://www.linkedin.com/in/garry-clark-883a581

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Profile page: https://yespress.io/garry-clark
Published by YesPress — https://yespress.io
Last updated: 2026-08-14