Single-source, full-spectrum diagnostic lab testing to help make confident diagnoses

Access specialized diagnostic lab solutions to help you provide the clear guidance that your patients ask for.

Quest provides more than 650 medical and scientific experts to help clinicians make better decisions through a robust testing menu, cutting-edge technology, and 20 lab-based genetic counselors who are available to support physician test selection and test pre-authorization. In addition, our tier 2 volume testing and reference work can help reduce unnecessary supply and labor costs.

General laboratories

Chronic shortages of skilled professionals can be daunting and impact costs as well as increase turnaround times. Rely on Quest for tier 2 volume testing and reference work.

Learn more

Esoteric laboratories

Quest esoteric laboratories provide cutting-edge research and development of new assays as well as refinement of existing diagnostic tests to produce tools with sensitivity, specificity, efficiency, and clinical value.

Learn more

Lab technology

The Lab of the Future – our new 200,000-square-foot facility in Marlborough, Massachusetts, defines the new model of diagnostic excellence.

Learn more