What We Do

Taking care of people is our business.

We are committed to improving human health. Whatever our respective roles, responsibilities or departments, all of us at Quest Diagnostics share this common goal. Each day, our more than 43,000 employees strive to find new ways to empower clinical decision-making and improve patient outcomes. Whether you are a lab assistant or technician, work in sales or client services, you play a vital role in this exciting endeavor.

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We are the world’s leading provider of diagnostic testing services, information and services that individuals and doctors rely on to make better healthcare decisions. Our services range from routine tests — like cholesterol panels, Pap testing and white blood cell counts — to sophisticated cancer testing, gene-based and molecular testing. We perform diagnostic tests that aid in the diagnosis or detection or, and measure the progress or recovery from a disease.

Touching millions of lives

Our testing impacts 70% of healthcare decisions. In fact, we perform testing for approximately 550,000 patients every day. In all, we touch the lives of patients approximately 150 million times each year.How do we achieve these numbers? We offer the broadest access to clinical testing services through our national network of 30-plus regional laboratories and approximately 125 rapid response laboratories. With approximately 2,000 patient service centers, we are in communities throughout the U.S.Our success also comes from our commitment to innovation. Our doctors and scientists constantly seek smarter, more accurate tests and assessments for monitoring and treatment. We have developed breakthrough laboratory tests, many of which are now industry standards of care.

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Going beyond laboratory testing

Beyond laboratory testing, we offer services to a range of customers and organizations. For example:

Physicians: Our information technology expertise is helping to shape the future of healthcare. Thousands of physicians use our Quanum suite of technology and analytics solutions to electronically order lab tests, deliver timely test results, share clinical information, and prescribe drugs to patients.

Employers: We help employers improve the health of their workers and reduce illegal drug use in the workplace. In fact, we’re a leading provider of programs to promote wellness and prevention of disease. By conducting health assessments for common conditions like diabetes and heart disease, we empower people to better manage their health.

Insurers: We are the leading provider of risk assessment services to the life insurance industry.