Company Information

Quest Diagnostics is the world's leading provider of diagnostic information services that patients and doctors need to make better healthcare decisions. We offer the broadest access to diagnostic testing services through our network of laboratories and patient service centers, and provide interpretive consultation through our extensive medical and scientific staff. Quest Diagnostics is a pioneer in developing innovative diagnostic tests and advanced healthcare information technology solutions that help improve patient care.

Quest Diagnostics reported 2012 revenues of $7.4 billion, has approximately 41,000 employees and serves about half of all physicians and hospitals in the United States.

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Diagnostic Information Services

Quest Diagnostics offers physicians the broadest test menu of any diagnostic laboratory, with more than 3,000 tests, and is a pioneer in developing innovative new diagnostic testing services and products.

We offer the most extensive clinical testing network in the United States, operating laboratories in most major metropolitan areas. Outside the U.S. we maintain testing facilities in Mexico and India, and we provide clinical trials testing in Argentina, Brazil, China and Singapore through affiliated laboratories.

Our extensive test menu includes routine biological testing; complex and specialized molecular and gene-based testing, and anatomic pathology testing. These services primarily help identify disease or risk factors for disease and predict and monitor response to treatment. We conduct complex and specialized testing, including molecular and gene-based diagnostics, primarily in our world renowned Quest Diagnostics Nichols Institute, Focus Diagnostics Reference Laboratory and Athena Diagnostics facilities.

We aim to develop and offer diagnostic information services that help physicians manage patients along a disease’s continuum of care. Our services are used by physicians across dozens of clinical areas, including cancer, cardiovascular disease, prescription drug monitoring, health and wellness, infectious disease, neurology and women’s health.

Our laboratories operate 24 hours a day, 365 days a year, and touch the lives of patients more than 147 million times each year. Patients may have their specimens collected at their physician’s office or in any of our approximately 2,100 conveniently located patient service centers. We maintain a robust logistics operation that includes courier vehicles and aircraft that collectively make tens of thousands of stops daily in order to collect and deliver specimens to our laboratories for testing.

Clinical Trials

Quest Diagnostics is a world leader in supporting clinical trials of new pharmaceuticals and companion diagnostics. We provide clinical trials through our advanced clinical laboratories in the United States and internationally through affiliated laboratories in Argentina, Brazil, China and Singapore as well as our own laboratory in India.

Healthcare Information Technology

Quest Diagnostics empowers healthcare organizations and clinicians with state-of-the-art health information technologies that help improve patient care and practice management. We provide interoperable technologies that help healthcare organizations and physicians enter, share and access clinical information without costly IT implementation or significant workflow disruption.

Our solutions include our Care360® suite of products and our ChartMaxx® electronic document management system for hospitals. The Care360 products, including Care360 Labs and Meds, enable physicians electronically to order diagnostic testing and review test results from Quest Diagnostics and electronically to prescribe medications.

We also provide the Gazelle mobile health app to help patients and physicians access health information through mobile devices.

Employer Solutions

Quest Diagnostics provides several solutions to employers. We are a leading provider of both pre-employment drugs-of-abuse screening for employers. Our Drug Testing Index (DTI), an aggregated report of employer drug testing results, has been considered a benchmark for U.S. workforce drug positivity trends since its inception in 1988.

Our Blueprint for Wellness service helps employers to work with their employees to identify disease or its risk factors based on results of health and wellness laboratory testing. We also provide risk assessment services for the life insurance industry.