Quest Diagnostics
Lab Testing at Quest Diagnostics - Inside Lancaster Walmart Supercenter
Quest Diagnostics Patient Service Center in Lancaster, TX 75146.
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Address
150 N Interstate 35 ELancaster, TX 75146
Dallas County
Hours
| Monday | 7:00 AM – 4:00 PM |
| Tuesday | 7:00 AM – 4:00 PM |
| Wednesday | 7:00 AM – 4:00 PM |
| Thursday | 7:00 AM – 4:00 PM |
| Friday | 7:00 AM – 4:00 PM |
| Saturday | 7:00 AM – 2:00 PM |
| Sunday | Closed |
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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.