Skip to main content

Expertise You Can Rely On

Extended support and collaboration with expert medical specialists

We are committed to helping you deliver the best possible care to your patients. That’s why Quest Diagnostics has over 650 MDs, PhDs, and genetic counselors across the country who are available for consultations to help advise you on test selection and results interpretation.

Our highly trained staff can help support you as you care for your patients by providing:

  • Clinical consultations and test information
  • Expert interpretive assistance on test results
  • Guidance to optimize test selection and planning
  • Assistance with collection and review of patient medical and family information

Our experts are available

Call the right helpline below and connect to the expert most qualified to answer your question.

  • 1.866.MYQUEST (1.866.697.8378) for an MD or PhD
  • 1.866.GENE.INFO (1.866.436.3463) for a board-certified medical geneticist or lab-based genetic counselor
  • 1.877.40.RXTOX (1.877.407.9869) for a toxicology specialist


Improve patient health through diagnostic insights when you
become a Quest Diagnostics customer. Get started today.


During the COVID-19 health crisis, fast action and trusted information matter more than ever.

Find out what's happening

Learn More