Quest Diagnostics

Lab Testing at Quest Diagnostics - Randalls Clay Rd

Quest Diagnostics Patient Service Center in Houston, TX 77084.

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Popular tests at this location:

TSH Lipid Panel CBC A1C Testosterone Vitamin D CMP

Address

18322 Clay Rd
Houston, TX 77084
Harris County

832-544-6506

Hours

Monday	7:30 AM – 4:30 PM
Tuesday	7:30 AM – 4:30 PM
Wednesday	7:30 AM – 4:30 PM
Thursday	7:30 AM – 4:30 PM
Friday	7:30 AM – 4:30 PM
Saturday	Closed
Sunday	Closed

Nearby alternatives

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Quest Diagnostics - Fry Road
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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.