Quest Diagnostics
Lab Testing at Quest Diagnostics - 4625 Southwest
Quest Diagnostics Patient Service Center in Houston, TX 77027.
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Address
4625 Southwest Freeway Site 142Houston, TX 77027
Harris County
Hours
| Monday | 8:00 AM – 5:30 PM |
| Tuesday | 8:00 AM – 5:30 PM |
| Wednesday | 8:00 AM – 5:30 PM |
| Thursday | 8:00 AM – 5:30 PM |
| Friday | 8:00 AM – 5:30 PM |
| Saturday | Closed |
| 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.