10 Quest Diagnostics legal leaders
VP, Deputy General Counsel - Legal, Executive Director & Assistant General Counsel and Chief FDA Counsel, Executive Director Legal Regulatory are among the current titles held by these ten Quest Diagnostics legal leaders. A reader can learn how legal leaders work at Quest Diagnostics from people who have held the role.
Professionals to explore
Aaliyah Eaves, JD, PhD
LinkedInExperience: Chief FDA Counsel, Executive Director Legal Regulatory · Quest Diagnostics
Aaliyah Eaves has been Chief FDA Counsel, Executive Director Legal Regulatory at Quest Diagnostics since January 2024, reporting to the General Counsel and leading a global team. Aaliyah Eaves was Chief FDA Counsel at the company from 2022 to 2024 and a Partner in the Healthcare Practice Group (Life Sciences) at Dinsmore & Shohl LLP from 2019 to 2022.
Benjamin Deutsch
LinkedInExperience: Exec. Director and Assistant General Counsel · Quest Diagnostics
Benjamin Deutsch has been Exec. Director and Assistant General Counsel at Quest Diagnostics since September 2024 and was Sr. Corporate Counsel there from 2012 to 2024. Benjamin Deutsch describes being responsible for commercial, medical quality, employment and professional liability matters as in-house counsel with Quest Diagnostics.
Dina Mack
LinkedInExperience: VP, Deputy General Counsel - Legal · Quest Diagnostics
Dina Mack has been VP, Deputy General Counsel - Legal at Quest Diagnostics since February 2007, based in Maplewood, New Jersey. Dina Mack was Counsel at Sidley Austin LLP from 2006 to 2007, Senior Counsel at AT&T from 1993 to 2006 and an Associate at Simpson Thacher & Bartlett LLP from 1987 to 1993.
Julie Ehinger
LinkedInExperience: Executive Director & General Counsel- Business Development · Quest Diagnostics
Julie Ehinger has been Executive Director & General Counsel- Business Development at Quest Diagnostics since July 2025 and was Senior Counsel there from 2022 to 2025. Julie Ehinger was Global Head of Legal at Hoya Vision Care from 2019 to 2022 and Vice President & Associate General Counsel at AmerisourceBergen from 2006 to 2018.
Keith Johnson
LinkedInExperience: Executive Director & Assistant General Counsel · Quest Diagnostics
Keith Johnson has been Executive Director & Assistant General Counsel at Quest Diagnostics since June 2025, based in Fort Mitchell, Kentucky. Keith Johnson was Sr. Corporate Counsel at Quest Diagnostics from 2007 to 2025 and an Attorney at Cincinnati Children's from 2002 to 2007.
Paul Kattas
LinkedInExperience: Assistant General Counsel · Quest Diagnostics
Paul Kattas has been Assistant General Counsel at Quest Diagnostics since August 2008, based in Basking Ridge, New Jersey. Paul Kattas was an Attorney at Kelley Drye & Warren LLP from 2000 to 2007, and the listing tags the Quest Diagnostics role as director level in the legal department.
Thom Kossl
LinkedInExperience: General Counsel- International · Quest Diagnostics
Thom Kossl is a former General Counsel- International at Quest Diagnostics, a role held from September 2007 to March 2018. Thom Kossl was SVP, General Counsel, Chief Compliance Officer at Dianon Systems from 2001 to 2007 and Vice President, General Counsel & Secretary at Unilab Corporation from 1988 to 1993.
Wayne Brown
LinkedInExperience: Vice President - Intellectual Property & Deputy General Counsel · Quest Diagnostics
Wayne Brown has been Vice President - Intellectual Property & Deputy General Counsel at Quest Diagnostics since January 2024. Wayne Brown was Deputy General Counsel & Chief IP Officer at the company from 2013 to 2024 and Chief Intellectual Property Counsel there from 2001 to 2013.
William O'Shaughnessy
LinkedInExperience: Deputy General Counsel and Corporate Secretary · Quest Diagnostics
William O'Shaughnessy is a former Deputy General Counsel and Corporate Secretary at Quest Diagnostics, a role held from November 2013 to December 2023, providing legal counsel mainly on corporate, securities, corporate finance, executive compensation and employee benefits matters. William O'Shaughnessy was Assistant General Counsel and Corporate Secretary there from 2007 to 2013.
Ya-Ling Wu
LinkedInExperience: Executive Director, Intellectual Property Counsel · Quest Diagnostics
Ya-Ling Wu has been Executive Director, Intellectual Property Counsel at Quest Diagnostics since December 2025, based in the San Diego area. Ya-Ling Wu was Senior Intellectual Property Counsel at the company from 2017 to 2025, Intellectual Property Counsel there from 2012 to 2017 and a Patent Attorney at Jones Day from 2008 to 2012.
Choose the right perspective
Match the person's legal specialty, such as litigation, intellectual property, regulatory or business development work, to the decision you face. Check when each person held the relevant role to judge how recent their view is.
Questions to take into the conversation
- 01What did you change first when you took on your current legal role, and why?
- 02How do you decide which legal questions need your direct attention and which your team should own?
- 03What has your own work taught you about advising business leaders in a regulated diagnostics company?
Reaching Quest Diagnostics legal leaders
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About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot; roles marked former had ended by then. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.
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