Quest Diagnostics

Lab Testing at Quest Diagnostics - Leander

Quest Diagnostics Patient Service Center in Leander, TX 78641.

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Popular tests at this location:

TSH Lipid Panel CBC A1C Testosterone Vitamin D CMP

Address

651 N Us Hwy 183 Ste 155
Leander, TX 78641
Williamson County

512-259-2879

Hours

Monday	6:00 AM – 4:00 PM
Tuesday	6:00 AM – 4:00 PM
Wednesday	6:00 AM – 4:00 PM
Thursday	6:00 AM – 4:00 PM
Friday	6:00 AM – 4:00 PM
Saturday	Closed
Sunday	Closed

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Carenow - Cedar Park
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LabCorp Cedar Park
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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.