Customer support
By choosing Quest Diagnostics Employer Solutions, you will work with a team dedicated to service. Our staff is skilled, knowledgeable, accessible, and committed to quality. You can count on the broad breadth of our experience and resources and we are never more than a click or phone call away.
For clients
Inquire about a drug test specimen status.
Locate a location/collection site.
Drug testing results, order a test, or reset your password:
Quest Integrated Systems (QIS).
Employer Solutions Portal (ESP).
Billing inquiries:
1.800.345.2455
Available Monday-Friday 9 a.m. - 4:30 p.m. ET
Pay online or submit billing disputes
Courier pickup:
1.866.697.8378 - Options 1 & 6
(Dial locally from the pickup site. Calls are routed by the area code)
Drug testing resources and information:
Drug testing knowledge center.
Lab questions and requests for CCF copies.
(Include the specimen ID # and accession #)
Locate a location/collection site for a drug test.
Make a change to your account.
Order supplies or requisition forms:
- Place an order using your SmartWorks® account
- Order supplies or requisition forms online
- Order supplies or requisition forms via email
- Call in your supplies order: 1.800.877.7484 - Options 3 & 1
- Fax your order: 1.267.436.3541
- International testing requests and supplies
Specimen updates & questions by lab location:
For donors
Locate a location/collection site for a drug test.
Please note that Quest Diagnostics is not able to provide a result to anyone other than the party who ordered the drug test. Please contact the organization that requested you to take a drug test to receive further information on the status of your test and the final result.
Collection sites
Locate a location/collection site.
Request an on-site collection.
Speak to a customer support representative:
Monday - Friday, 7 AM - 7 PM CT
1.800.877.7484