1351 Cortina Dr,
Ste 100
Orland, CA 95963
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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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8.27 mi away
Monday:
6:00 am-10:00 am , 10:30 am-12:00 pm
Tuesday:
6:00 am-10:00 am , 10:30 am-12:00 pm
Wednesday:
6:00 am-10:00 am , 10:30 am-12:00 pm
Thursday:
6:00 am-10:00 am , 10:30 am-12:00 pm
Friday:
6:00 am-10:00 am , 10:30 am-12:00 pm
Saturday:
Closed
Sunday:
Closed
20.51 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:
7:00 am-11:00 am
Sunday:
Closed
21.26 mi away
Monday:
6:30 am-10:30 am , 11:00 am-1:30 pm
Tuesday:
6:30 am-10:30 am , 11:00 am-1:30 pm
Wednesday:
6:30 am-10:30 am , 11:00 am-1:30 pm
Thursday:
6:30 am-10:30 am , 11:00 am-1:30 pm
Friday:
6:30 am-10:30 am , 11:00 am-1:30 pm
Saturday:
Closed
Sunday:
Closed
Quest Diagnostics - Colusa Bridge St
1025 Bridge St,
Colusa, CA 95932
Get Directions30.34 mi away
Monday:
7:00 am-11:30 am , 12:30 pm-3:30 pm
Tuesday:
7:00 am-11:30 am , 12:30 pm-3:30 pm
Wednesday:
7:00 am-11:30 am , 12:30 pm-3:30 pm
Thursday:
7:00 am-11:30 am , 12:30 pm-3:30 pm
Friday:
7:00 am-11:30 am , 12:30 pm-3:30 pm
Saturday:
Closed
Sunday:
Closed
34.15 mi away
Monday:
7:00 am-11:00 am , 11:40 am-3:30 pm
Tuesday:
7:00 am-11:00 am , 11:40 am-3:30 pm
Wednesday:
7:00 am-11:00 am , 11:40 am-3:30 pm
Thursday:
7:00 am-11:00 am , 11:40 am-3:30 pm
Friday:
7:00 am-11:00 am , 11:40 am-3:30 pm
Saturday:
Closed
Sunday:
Closed
34.22 mi away
Monday:
7:00 am-11:30 am , 12:30 pm-3:30 pm
Tuesday:
7:00 am-11:30 am , 12:30 pm-3:30 pm
Wednesday:
7:00 am-11:30 am , 12:30 pm-3:30 pm
Thursday:
7:00 am-11:30 am , 12:30 pm-3:30 pm
Friday:
7:00 am-11:30 am , 12:30 pm-3:30 pm
Saturday:
Closed
Sunday:
Closed
Quest Diagnostics - Red Bluff South Main- Employer Drug Testing Not Offered
1054 S Main St,
Red Bluff, CA 96080
Get Directions37.29 mi away
Monday:
6:30 am-11:00 am , 12:00 pm-3:00 pm
Tuesday:
6:30 am-11:00 am , 12:00 pm-3:00 pm
Wednesday:
6:30 am-11:00 am , 12:00 pm-3:00 pm
Thursday:
6:30 am-11:00 am , 12:00 pm-3:00 pm
Friday:
6:30 am-11:00 am , 12:00 pm-3:00 pm
Saturday:
Closed
Sunday:
Closed
Quest Diagnostics - Yuba City Plumas Ct
1526 Plumas Ct,
Yuba City, CA 95991
Get Directions44.35 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:
7:00 am-11:00 am
Sunday:
Closed
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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. © 2026 Quest Diagnostics Incorporated. All rights reserved. Image content features models and is intended for illustrative purposes only.