17 Ginger Creek Mdws,
Glen Carbon, IL 62034
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Lab testing, laboratory and office locations around the world
Quest Diagnostics has headquarters in the U.S. and operations in India, Ireland, and Mexico. Our products and services are used by customers in over 130 countries. We also collaborate with many international diagnostic laboratories, hospitals and clinics to help improve human health around the world.
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1.52 mi away
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:
Closed
Sunday:
Closed
2.08 mi away
Monday:
6:00 am-3:30 pm
Tuesday:
6:00 am-3:30 pm
Wednesday:
6:00 am-3:30 pm
Thursday:
6:00 am-3:30 pm
Friday:
6:00 am-3:30 pm
Saturday:
7:00 am-1:00 pm
Sunday:
Closed
Quest Diagnostics - Collinsville - Employer Drug Testing Not Offered
1103 Belt Line Rd,
Collinsville, IL 62234
Get Directions4.69 mi away
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:
Closed
Sunday:
Closed
Quest Diagnostics - Troy IL-Employer Drug Testing Not Offered
108 W Us Highway 40,
Troy, IL 62294
Get Directions5.49 mi away
Monday:
7:00 am-12:00 pm , 12:30 pm-3:00 pm
Tuesday:
7:00 am-12:00 pm , 12:30 pm-3:00 pm
Wednesday:
7:00 am-12:00 pm , 12:30 pm-3:00 pm
Thursday:
7:00 am-12:00 pm , 12:30 pm-3:00 pm
Friday:
7:00 am-12:00 pm , 12:30 pm-3:00 pm
Saturday:
Closed
Sunday:
Closed
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Our safety precautions help ensure your confidence and comfort while visiting our Patient Service Centers to get the testing you need, today and every day.
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Quest® is the brand name used for services offered by Quest Diagnostics Incorporated and its affiliated companies. Quest Diagnostics Incorporated and certain affiliates are CLIA-certified laboratories that provide HIPAA-covered services. Other affiliates operated under the Quest® brand, such as Quest Consumer Inc., do not provide HIPAA-covered services.
Quest®, Quest Diagnostics®, any associated logos, and all associated Quest Diagnostics registered or unregistered trademarks are the property of Quest Diagnostics. All third-party marks—® and ™—are the property of their respective owners. © 2025 Quest Diagnostics Incorporated. All rights reserved. Image content features models and is intended for illustrative purposes only.