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Mark J. Guinan

Executive Vice President & Chief Financial Officer at Quest Diagnostics, Inc.
Relationship Science aggregates deep and verified information on over 6 million influential decision makers and the 2 million organizations with which they are associated. From this data, we create a "business social graph" that highlights who knows whom. Here are Mark J. Guinan's strongest connections.

People Most Closely Connected to Mark J. Guinan

Stephen H. Rusckowski
Chairman of the Board, President & Chief Executive Officer at Quest Diagnostics, Inc.
Andreas G. Frank
Chief Executive Officer at Greiner Packaging Holding AG
Scott Jeffers
Senior Vice President, Global Supply Chain at Hill-Rom, Inc.
Richard G. Keller
Vice President, Internal Audit at Hill-Rom Company, Inc.
Surya N. Mohapatra
Executive-in-Residence at Columbia University - Columbia Business School
Alister W. Reynolds
Chief Executive Officer at SomaLogic, Inc.
Lang Dorsey
Founder at Hill-Rom Company, Inc.
Melvin Suggs
Owner at Hill-Rom Company, Inc.
David A. Rapperport
Executive Director of Software Engineering & Design at Quest Diagnostics, Inc.
Shawn Bevec
Executive Director Investor Relations at Quest Diagnostics, Inc.
Keith Makund
Partner at Hill-Rom Company, Inc.
Gerilyn Chaffee
Partner at Hill-Rom Company, Inc.
Jon Roger Cohen
President & Director at AmeriPath, Inc.
Michael E. Prevoznik
General Counsel at Quest Diagnostics, Inc.
William J. O’Shaughnessy, Jr.
Secretary & Deputy General Counsel at Quest Diagnostics, Inc.
Robert A. Klug
Vice President, Controller & Chief Accounting Officer at Quest Diagnostics, Inc.
Jay G. Wohlgemuth
Chief Medical Officer, Senior Vice President-Research & Development at Quest Diagnostics, Inc.
Jeffrey S. Shuman
Senior Vice President & Chief Human Resources Officer at Quest Diagnostics, Inc.
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