Quest Diagnostics

Lab Testing at Quest Diagnostics - Inside Plano Tom Thumb Store - Employer Drug Testing Not Offered

Quest Diagnostics Patient Service Center in Plano, TX 75023.

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Popular tests at this location:

TSH Lipid Panel CBC A1C Testosterone Vitamin D CMP

Address

3945 Legacy Dr
Plano, TX 75023
Collin County

214-227-1372

Hours

Monday	8:00 AM – 5:00 PM
Tuesday	8:00 AM – 5:00 PM
Wednesday	8:00 AM – 5:00 PM
Thursday	8:00 AM – 5:00 PM
Friday	8:00 AM – 5:00 PM
Saturday	Closed
Sunday	Closed

Nearby alternatives

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Quest Diagnostics - Plano Medical Pavillion
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About this location

Quest Diagnostics Patient Service Center. 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.