Meet Our Executive Leadership Team

IMAgining and executing a vision to enhance the livelihood and productivity of individuals and organizations through unparalleled diversity, coverage and breadth of capabilities.

David C. Pulver, MD

Executive Chairman

Mark Weinberger

Mark I. Weinberger, PhD, MPH

President & CEO

Victor Cohen

Chief Financial Officer

Lisa A. Letarte, Esq, SPHR, SHRM-SCP

Chief Human Resources Officer

Michael Hirsch

Chief Information Officer

Michael Koenig

Chief Information Security & Technology Officer

Tim Weaver

Senior Vice President, Government Services

Elijah Marentette

Vice President of Operations, Payer Services

Dana Poff

Executive Vice President, Clinical Research

Sara Mulick

Senior Vice President of Sales, Evaluation Solutions

Erica Stirling, Esq

General Counsel and Chief Compliance Officer

Debra Nichols

Chief Commercial Officer, Clinical Research