Quest Diagnostics Executive and Leadership Team

June, 2026

Leadership Overview

Quest Diagnostics has 10 executives leading key functions including strategy, finance, human resources, and regional operations.

Driven by a commitment to improving health outcomes, Quest Diagnostics leverages its extensive diagnostic insights to identify and treat disease, foster healthy behaviors, and enhance healthcare management.

Leadership Roles at Quest Diagnostics

  • Chief Executive Officer, President & Chairman - James Davis
  • Executive Director, Regional Chief Financial Officer - West Region - John Meyerhofer
  • Chief Financial Officer, Family Laboratory & Corporate - Emily Davis
  • Executive Vice President & Chief Financial Officer - Sam Samad
  • Neurology Account Executive & President, S Club 2022 & 2020 - Douglas White
  • President (North) - Dharmendu Damany
  • Neurology 2x Account Executive & President, S Club Winner - Mario Verticelli
  • Senior Director, Programs & Healthcare Analytics Solutions Chief of Staff - Kristine Silvestri
  • Senior Vice President and Chief Human Resources Officer - Cecilia McKenney
  • Healthcare Executive - Kelly Channing
  • James Davis - Chief Executive Officer, President & Chairman

    James Davis, the Chief Executive Officer, President & Chairman at Quest Diagnostics, directs the overarching strategy and corporate governance. Davis guides the company's mission to empower individuals with diagnostic insights for improved health outcomes, drawing from the world's largest database of clinical lab results. This leadership involves setting the strategic direction for developing innovative tests and expanding leadership in cancer diagnostics and anatomic pathology services. The Chairman role ensures alignment between the board of directors and executive management, fostering a culture of accountability and long-term value creation. James Davis drives the company's commitment to providing physicians with the broadest test menu, ensuring Quest Diagnostics remains at the forefront of diagnostic innovation and patient care management.
    James Davis

    John Meyerhofer - Executive Director, Regional Chief Financial Officer - West Region

    John Meyerhofer, the Executive Director, Regional Chief Financial Officer - West Region at Quest Diagnostics, manages financial operations and strategic planning for the western United States. Meyerhofer oversees regional financial performance, including budgeting, forecasting, and resource allocation, ensuring alignment with the company's broader financial objectives. This role involves analyzing market trends and economic conditions specific to the West Region to identify growth opportunities and mitigate financial risks. John Meyerhofer supports the implementation of financial strategies that enhance operational efficiency and profitability across the region's diagnostic services. The executive director ensures robust financial controls and compliance with regulatory requirements within the West Region, contributing to Quest Diagnostics' overall financial health and market position.

    Emily Davis - Chief Financial Officer, Family Laboratory & Corporate

    Emily Davis, the Chief Financial Officer, Family Laboratory & Corporate at Quest Diagnostics, directs financial strategy and operations for key corporate functions and the family laboratory division. Davis oversees financial planning, accounting, and reporting, ensuring fiscal integrity and compliance across these critical areas. This leadership role involves managing capital allocation, optimizing financial performance, and supporting strategic initiatives that drive growth and efficiency. Emily Davis provides critical financial insights to guide decision-making for the company's core diagnostic services and innovative test development. The CFO ensures robust financial controls and risk management frameworks are in place, safeguarding the company's assets and supporting its mission to improve health outcomes through diagnostic insights.

    Sam Samad - Executive Vice President & Chief Financial Officer

    Sam Samad, the Executive Vice President & Chief Financial Officer at Quest Diagnostics, oversees the company's comprehensive financial strategy and operations. Samad directs all aspects of financial planning, accounting, treasury, and investor relations, ensuring fiscal discipline and strategic resource allocation. This executive leadership role is pivotal in driving Quest Diagnostics' financial performance, supporting its mission to provide diagnostic insights that improve health outcomes. Sam Samad guides the financial framework for innovation in testing, cancer diagnostics, and anatomic pathology services. The CFO ensures robust financial controls, manages capital deployment for growth initiatives, and maintains strong relationships with the financial community, reinforcing the company's market leadership and long-term stability.
    Sam Samad

    Douglas White - Neurology Account Executive & President, S Club 2022 & 2020

    Douglas White, the Neurology Account Executive & President, S Club 2022 & 2020 at Quest Diagnostics, drives strategic sales initiatives within the neurology sector. White focuses on expanding the adoption of advanced diagnostic solutions that empower physicians to improve patient health outcomes. This role involves cultivating strong relationships with healthcare providers, understanding their needs, and presenting tailored diagnostic strategies. Douglas White leverages deep market knowledge to identify opportunities for growth in specialized testing areas, contributing to Quest Diagnostics' leadership in cancer diagnostics and innovative test development. The recognition as President, S Club signifies exceptional sales performance and dedication to client success in advancing healthcare management.
    Douglas White

    Dharmendu Damany - President (North)

    Dharmendu Damany, the President (North) at Quest Diagnostics, leads strategic operations and market development across the northern regions. Damany oversees the expansion of diagnostic services, ensuring Quest Diagnostics' commitment to improving health outcomes is met through localized strategies. This role involves driving growth by enhancing physician access to the broadest test menu and pioneering innovative diagnostic solutions. Dharmendu Damany focuses on strengthening regional market presence and operational efficiency, contributing to the company's leadership in cancer diagnostics and anatomic pathology. The President (North) ensures seamless integration of diagnostic insights into healthcare management practices within the designated territories.
    Dharmendu Damany

    Mario Verticelli - Neurology 2x Account Executive & President, S Club Winner

    Mario Verticelli, the Neurology 2x Account Executive & President, S Club Winner at Quest Diagnostics, drives significant growth in specialized neurological diagnostics. Verticelli excels in building and maintaining strong relationships with healthcare providers, ensuring they utilize Quest Diagnostics' advanced testing capabilities to improve patient care. This role involves translating complex diagnostic insights into actionable strategies for physicians, supporting disease identification and management. Mario Verticelli's consistent high performance, recognized by the President, S Club award, underscores a deep commitment to client success and the company's mission. Verticelli actively contributes to Quest Diagnostics' leadership in innovative testing and its role in advancing healthcare management through precise diagnostic information.

    Kristine Silvestri - Senior Director, Programs & Healthcare Analytics Solutions Chief of Staff

    Kristine Silvestri, the Senior Director, Programs & Healthcare Analytics Solutions Chief of Staff at Quest Diagnostics, spearheads strategic program management and enhances healthcare analytics solutions. Silvestri coordinates cross-functional initiatives, ensuring successful execution of programs designed to leverage diagnostic insights for improved health outcomes. This role involves driving the development and implementation of advanced analytics solutions that support physicians in identifying and treating diseases more effectively. Kristine Silvestri acts as a key liaison, facilitating communication and collaboration between executive leadership and operational teams. The Chief of Staff function ensures strategic alignment and operational excellence across program delivery and the advancement of data-driven healthcare solutions for Quest Diagnostics.

    Cecilia McKenney - Senior Vice President and Chief Human Resources Officer

    Cecilia McKenney, the Senior Vice President and Chief Human Resources Officer at Quest Diagnostics, leads all human capital strategies and organizational development initiatives. McKenney directs talent acquisition, employee engagement, compensation, and benefits programs, fostering a culture that supports the company's mission to improve health outcomes. This leadership role is crucial in attracting and retaining top talent necessary for innovation in diagnostic testing and healthcare management. Cecilia McKenney oversees the development of programs that enhance employee well-being and professional growth, ensuring a skilled and motivated workforce. The CHRO champions diversity and inclusion, driving initiatives that reflect the company's commitment to its employees and the communities it serves across its extensive operations.
    Cecilia McKenney

    Kelly Channing - Healthcare Executive

    Kelly Channing, the Healthcare Executive at Quest Diagnostics, directs strategic initiatives aimed at enhancing healthcare management and patient outcomes. Channing focuses on leveraging the company's extensive diagnostic insights to identify new avenues for disease treatment and prevention. This leadership position involves fostering collaborations with healthcare systems and providers to integrate innovative diagnostic solutions into patient care pathways. Kelly Channing plays a key part in advancing Quest Diagnostics' market leadership by ensuring the broadest test menu is accessible to physicians. The executive's work supports the company's mission to empower individuals through actionable health information derived from clinical lab results.

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    Frequently Asked Questions Regarding Quest Diagnostics Top Executives and Leadership Team

    Who leads Quest Diagnostics?
    Quest Diagnostics is led by James Davis (Chief Executive Officer, President & Chairman), along with executives such as John Meyerhofer (Executive Director, Regional Chief Financial Officer - West Region) and Emily Davis (Chief Financial Officer, Family Laboratory & Corporate).
    Who is part of Quest Diagnostics’s executive team?
    The executive team of Quest Diagnostics includes leaders such as James Davis (Chief Executive Officer, President & Chairman), John Meyerhofer (Executive Director, Regional Chief Financial Officer - West Region), Emily Davis (Chief Financial Officer, Family Laboratory & Corporate) and other senior executives.
    How many executives does Quest Diagnostics have?
    Quest Diagnostics has 10 executives leading key business areas.
    What roles are included in Quest Diagnostics’s leadership team?
    The leadership team of Quest Diagnostics includes roles such as Chief Executive Officer, President & Chairman, Executive Director, Regional Chief Financial Officer - West Region, Chief Financial Officer, Family Laboratory & Corporate, Executive Vice President & Chief Financial Officer, Neurology Account Executive & President, S Club 2022 & 2020.