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Quest Diagnostics

Lab Testing at National Drug Screening, Llc - Mckinney

Drug testing partner location in Mckinney, TX 75069.

Partner Location

This location is part of Quest's partner network. Services and availability may differ from a standard Quest Patient Service Center. Please call 469-855-1090 before visiting to confirm they accept your lab order.

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Note: tests available at this location depend on its services. Confirm by calling before visiting.

Address

115 E Virginia St Ste 202
Mckinney, TX 75069
Collin County
469-855-1090

Hours

Monday9:00 AM – 4:30 PM
Tuesday9:00 AM – 4:30 PM
Wednesday9:00 AM – 4:30 PM
Thursday9:00 AM – 4:30 PM
Friday9:00 AM – 4:30 PM
SaturdayClosed
SundayClosed

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About this location

Drug testing partner location. Quest Diagnostics operates one of the largest networks of clinical laboratories in the United States, offering a wide range of diagnostic tests for patients, physicians, and employers.

Listing last updated 2026-04-25.