Get help deciding on the most efficient path to patient health

You depend on fast, accurate data to make informed decisions and optimize the health of your patients.

To help you formulate an efficient, economic, and comprehensive patient management plan, Quest Diagnostics® offers an extensive library of testing algorithms based on proven, published practice parameters. But we don’t stop there. Over 650 medical and scientific experts are standing by to help you diagnose the most challenging cases.


Quest Diagnostics is a pioneer with diagnostic “firsts”:

  • 1st plasma methylation marker in the United States was introduced by Quest
  • 1st HIV advanced sequencing diagnostic in the U.S.
  • 1st in the mass spectrometry proteomics field for the launch of the renin, Thyroglobulin, and IGF-1 assays

Clinical Decision Support (CDS) tool

Help optimize decisions and the health of your patients with an extensive network of clinical expertise as well as a comprehensive library of testing algorithms.

  • Clinical Algorithms

    To help you formulate an efficient, economic, and comprehensive patient management plan, we offer an extensive library of testing algorithms based on proven, published practice parameters that are accessible through the Quest Diagnostics Test Center.

  • Add more than 650 medical specialists to your scientific arsenal

    In-house phlebotomists (as allowed by state law) can provide you with specialists who are trained to meet the gold standard of care: