Image of Collection CenterWe provide unparalleled access to a combined nationwide network of more than 8,000 drug testing collection sites, including 1,200 company-owned and operated Patient Service Centers (PSCs) and 1,500 preferred third-party collection site locations. We offer a wide variety of specimen collection options, making drug testing simple for your company and more convenient for your employees.

1,200 Patient Service Centers (PSCs)

PSCs are quality, collection sites owned and managed by Quest Diagnostics. We offer competitive market pricing to provide you with the best value. You will be billed for PSC drug screen collections on your monthly Quest Diagnostics invoice.

1,500 Preferred Third-Party Collection Sites

Quest Diagnostics contracts with these preferred sites to provide an additional network of cost-competitive collection sites that complement our PSCs with the same standard of quality. You will be billed for preferred third-party drug screen collections on your monthly Quest Diagnostics invoice.

6,000 Third-Party Collection Network

If you are unable to find a convenient site within the Quest Diagnostics PSC and preferred collection site network, our extended network includes 6,000 additional third-party collection sites. These sites are market priced and you will be invoiced directly by the third-party collector for drug screen collections provided at these locations, unless you’re contracted with Quest Diagnostics to manage your collections.

Review the Quest Diagnostics Collection Brochure for more information.

Locate a collection site near you.

For more information about drug testing, visit our website or contact us online.