Contact Us

We’re here to answer your questions about prescription drug monitoring, urine drug testing, toxicology, and result report interpretation. Use the form below to contact us with general inquiries not related to any specific patient or test order.

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Phone numbers


Client services

1.866.MyQuest (1.866.697.8378)

Drug Toxicology Hotline

For assistance with prescription drug monitoring results, please contact Quest Diagnostics toxicology consultant specialists. They are available Monday – Friday, 8:00 AM to 6:00 PM Eastern Standard Time.

1.877.40.RXTOX (1.877.407.9869)

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