Why Quest Diagnostics?

Quest Diagnostics employee smilingQuest Diagnostics offers reliable employee drug screening, an extensive collection site network and personal service and support. Our global network of laboratories participates in rigorous laboratory proficiency testing to maintain complete quality assurance.

As your drug testing provider, we will guide you to choose the right test and timing to optimize your drug testing program's success. We want to help you achieve your drug testing goals. We're more than just a lab; we're a true partner in your success. 

Our services include:

  • Four U.S. SAMHSA-certified laboratories that offer broad testing capacity and redundancy
  • A network of 6,000 collection sites, including more than 1,000 company owned and operated Patient Service Centers and more than 1,000 preferred third-party collection site locations across the United States
  • More than 3,500 company-employed (not contracted) couriers and 25 aircraft to manage the logistics for specimen transportation
  • A single, standardized laboratory and billing platform 
  • Integrated Medical Review Officer (MRO) services
  • Multiple drug test result reporting options
  • More than 100 dedicated customer service employees

Download our Complete Line of Drug Testing Solutions brochure.

Download our Guide to Establishing a Workplace Drug Testing Program.

Take our Virtual Laboratory Tour.

To get started with Quest today, call 1.800.877.7484 or contact us online.