Executive Team

Our executive team brings proven experience and expertise in developing and commercializing innovative nuclear medicine products and technologies


George Messina
Chairman Emeritus
Stephen Merrick
President and Chief Executive Officer
James T. Harvey, Ph.D.
Senior Vice President and Chief Science Officer
James W. Brodack, Ph.D.
Senior Vice President and Chief Regulatory Officer
Paul Estrem, CPA
Senior Vice President and Chief Financial Officer
Christian J. Garver, CPA
Vice President, Finance
John Carlson
Vice President, Service and Training
Rim Milunas
Vice President, Engineering
Dave Wilson
Vice President, Operations
Lisa Holst
Vice President, Sales and Marketing
Darcy Montgomery
Senior Director, Instrument Manufacturing Operations and Corporate Supply Chain
Barb Gosenheimer
Director, Program Management

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