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Senior leaders in clincal research
Senior Leadership

Find out how our clinical research expertise in drug and medical device can help with your next study or program.


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PDF: Medpace Fact Sheet


February 22-23, 2017

Outsourcing in Clinical Trials West Coast 2017 in Burlingame

March 21-23, 2017

2017 BioPharma Asia in Singapore


The Medpace Senior leadership team is characterized by its depth of experience and dedication to providing the highest quality service and leadership to our customers, associates, and shareholders.


Susan Burwig, MA, BSN
Senior Vice President, Operations

James M. Pusey, MD, MBA
Senior Vice President, Clinical Operations

Mark Roseman, MPH, DSc
Senior Vice President, Clinical Operations

Jonathan Isaacsohn, MD
Executive Vice President

Weimin Gai, MS
Senior Vice President, Biometrics

Daniel O'Leary, MD
Senior Vice President, Medical Affairs

Steven B. Johnson, PharmD
Vice President, Regulatory Affairs

Medpace Labs

Traci Turner, MD
Executive Director, MRL Operations & MARC

Yong-Xi Li, PhD
Executive Director, Medpace Bioanalytical Laboratories

Paul Travis, BSc, MSc
Executive Director, Global Laboratory Business Strategy and Development

Medpace Clinical Pharmacology Unit

Sally Dressman, BSN
Director, Clinical Pharmacology


Stephen Ewald, JD
General Counsel, Corporate Secretary

Penelope Bucknell, BSc (Hons), Dip PM, MCIPD
Vice President, Human Resources

Eric Humes
Executive Director, Quality Assurance

Yun Le, MS
Vice President, Information Technology

Business Development

Todd Meyers
Vice President, Business Development and Marketing

John Wynne, MBA
Vice President, Commercial Operations