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Outage notice:

Due to the global information outage that occurred this morning, Quest is taking swift action to respond, recover and restore our operations. Our Patient Services are operating with reduced capacity so you may experience longer wait and service times. Our Customer Contact teams are currently unavailable. We appreciate your patience as we work toward returning to normal operations. 


Dallas, TX licensure

Quest Diagnostics Clinical Laboratories
4770 Regent Blvd., Irving, TX 75063

Licenses Expires License/Permit #
05-15-2026 2071801
CLIA 02-08-2025 45D0697943
Ohio (Lead) 02-16-2024 C10193

State laboratory licensure is not required in the state of Texas.