Quest Diagnostics Leadership Team: Leading the Way in Healthcare

Quest Diagnostics is a leading provider of diagnostic testing, information, and services that patients and doctors rely on to make better healthcare decisions. The company's success is due in large part to its innovative and forward-thinking leadership team, which is committed to staying ahead of the curve when it comes to technology, research, and patient care.
Quest Diagnostics Leadership Team

Meet the Quest Diagnostics Leadership Team

At the helm of Quest Diagnostics is Steve Rusckowski, the company's Chairman, President, and CEO. Rusckowski has been with Quest since 2012 and has been instrumental in driving the company's growth and success. Under his leadership, Quest has expanded its capabilities in genetics, oncology, and other areas of advanced diagnostics.

Other key members of the Quest Diagnostics leadership team include:

Catherine T. Doherty

As Senior Vice President and Group Executive, Clinical Franchise Solutions, Doherty is responsible for driving growth and innovation in Quest's clinical franchise business, which includes Women's Health, Infectious Disease, and Cardiovascular.

Everett Cunningham

Cunningham serves as Senior Vice President and General Manager, Commercial. In this role, he oversees Quest's sales, marketing, and customer service functions, ensuring that the company is delivering the highest level of service and support to its clients and patients.

Gary A. S. Mawby

Mawby is Senior Vice President and Chief Financial Officer of Quest Diagnostics. He is responsible for the company's financial strategy and operations, including budgeting, forecasting, and financial reporting. Mawby also leads Quest's efforts to optimize its capital structure and enhance shareholder value.

Jay Wohlgemuth

Wohlgemuth serves as Senior Vice President, R&D, Medical and Chief Medical Officer. In this role, he oversees Quest's research and development efforts, as well as its medical affairs and clinical trial operations. Wohlgemuth is also responsible for ensuring that Quest's diagnostic tests are accurate, reliable, and clinically meaningful.

The Quest for Innovation and Excellence

At Quest Diagnostics, innovation and excellence are the driving forces behind everything the company does. From developing new diagnostic tests to improving patient outcomes, Quest is committed to staying at the forefront of healthcare technology and research.

One of the ways Quest is driving innovation is through its use of advanced technologies like artificial intelligence (AI) and machine learning. By leveraging these tools, Quest is able to analyze vast amounts of data and identify patterns and trends that would be impossible to detect manually.

Quest is also investing heavily in genetics and genomics, recognizing the enormous potential of these fields to transform healthcare. The company has partnerships with leading academic institutions and research organizations, and is actively involved in developing new diagnostic tests and therapies based on genetic insights.

The Pros and Cons of Quest Diagnostics


  • Quest is a recognized leader in diagnostic testing and has a strong reputation for quality and accuracy.
  • The company is committed to innovation and is investing heavily in cutting-edge technologies like AI and genomics.
  • Quest has a broad range of diagnostic capabilities, including genetics, oncology, and infectious disease.
  • The company has a large and growing customer base, including hospitals, clinics, and physician practices.


  • Quest is facing increasing competition from other diagnostic testing companies, which could impact its market share and profitability.
  • The company's reliance on third-party payers for reimbursement could make it vulnerable to changes in healthcare policy and regulation.
  • Quest's focus on innovation and R&D could result in higher costs and lower profitability in the short term.


Q: What is Quest Diagnostics?

Quest Diagnostics is a leading provider of diagnostic testing, information, and services that patients and doctors rely on to make better healthcare decisions.

Q: What is the company's mission?

Quest's mission is to empower better health through diagnostic insights.

Q: How many employees does Quest have?

Quest has approximately 50,000 employees worldwide.

Q: Where is Quest Diagnostics headquartered?

Quest Diagnostics is headquartered in Secaucus, New Jersey.


The Quest Diagnostics leadership team is comprised of talented and experienced individuals who are committed to driving innovation and excellence in healthcare. Through their efforts, Quest is helping to improve patient outcomes and advance the field of diagnostic testing. While the company faces challenges and uncertainties, its focus on technology, research, and patient care position it for continued success in the years ahead.