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Quest Diagnostics

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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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Quest Diagnostics - Downey Brookshire - Employer Drug Testing Not Offered

11525 Brookshire Ave,

Ste 401

Downey, CA 90241

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1.04 mi away

Schedule Appointment 562-299-2512
Monday: 7:00 am-5:00 pm
Tuesday: 7:00 am-5:00 pm
Wednesday: 7:00 am-5:00 pm
Thursday: 7:00 am-5:00 pm
Friday: 7:00 am-5:00 pm
Saturday: 7:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Downey South Paramount - Employer Drug Testing Not Offered

10800 Paramount Blvd,

Ste 103

Downey, CA 90241

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1.66 mi away

Schedule Appointment 562-299-8417
Monday: 6:30 am-3:30 pm
Tuesday: 6:30 am-3:30 pm
Wednesday: 6:30 am-3:30 pm
Thursday: 6:30 am-3:30 pm
Friday: 6:30 am-3:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Bellflower Artesia Boulevard - Employer Drug Testing Not Offered

10230 Artesia Blvd,

Ste 305

Bellflower, CA 90706

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3.71 mi away

Schedule Appointment 562-236-6737
Monday: 8:00 am-4:00 pm
Tuesday: 8:00 am-4:00 pm
Wednesday: 8:00 am-4:00 pm
Thursday: 8:00 am-4:00 pm
Friday: 8:00 am-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Lynwood Long Beach Blvd - Employer Drug Testing Not Offered

10747 Long Beach Blvd,

Unit 1

Lynwood, CA 90262

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3.95 mi away

Schedule Appointment 310-537-0012
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 - Long Beach Downey Avenue - Employer Drug Testing Not Offered

5830 Downey Ave,

Long Beach, CA 90805

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4.21 mi away

Schedule Appointment 562-633-6533
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: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Whittier Painter Avenue - Employer Drug Testing Not Offered

8135 Painter Ave,

Ste 301

Whittier, CA 90602

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6.47 mi away

Schedule Appointment 562-789-1346
Monday: 5:30 am-2:30 pm
Tuesday: 5:30 am-2:30 pm
Wednesday: 5:30 am-2:30 pm
Thursday: 5:30 am-2:30 pm
Friday: 5:30 am-2:30 pm
Saturday: 7:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - Long Beach Woodruff Avenue - Employer Drug Testing Not Offered

3816 Woodruff Ave,

Ste 306

Long Beach, CA 90808

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6.64 mi away

Schedule Appointment 562-335-1601
Monday: 7:00 am-3:30 pm
Tuesday: 7:00 am-3:30 pm
Wednesday: 7:00 am-3:30 pm
Thursday: 7:00 am-3:30 pm
Friday: 7:00 am-3:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Whittier 15141 Whittier Blvd

15141 Whittier Blvd,

Ste 125

Whittier, CA 90603

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7.5 mi away

Schedule Appointment 562-204-9911
Monday: 7:30 am-4:00 pm
Tuesday: 7:30 am-4:00 pm
Wednesday: 7:30 am-4:00 pm
Thursday: 7:30 am-4:00 pm
Friday: 7:30 am-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Montebello Via Campo

2527 Via Campo,

Montebello, CA 90640

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7.52 mi away

Schedule Appointment 323-246-2500
Monday: 6:30 am-3:30 pm
Tuesday: 6:30 am-3:30 pm
Wednesday: 6:30 am-3:30 pm
Thursday: 6:30 am-3:30 pm
Friday: 6:30 am-3:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - La Palma 5418 La Palma Ave - Employer Drug Testing Not Offered

5418 La Palma Ave,

La Palma, CA 90623

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7.57 mi away

Schedule Appointment 562-215-5703
Monday: 7:30 am-4:00 pm
Tuesday: 7:30 am-4:00 pm
Wednesday: 7:30 am-4:00 pm
Thursday: 7:30 am-4:00 pm
Friday: 7:30 am-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Long Beach Atlantic Avenue - Employer Drug Testing Not Offered

2880 Atlantic Ave,

Ste 270

Long Beach, CA 90806

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8.14 mi away

Schedule Appointment 562-355-8435
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: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Los Alamitos Cherry Street - Employer Drug Testing Not Offered

10861 Cherry St,

Ste 201

Los Alamitos, CA 90720

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8.99 mi away

Schedule Appointment 562-799-6028
Monday: 6:30 am-3:30 pm
Tuesday: 6:30 am-3:30 pm
Wednesday: 6:30 am-3:30 pm
Thursday: 6:30 am-3:30 pm
Friday: 6:30 am-3:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Long Beach Termino - Employer Drug Testing Not Offered

1760 Termino Ave,

Ste 200

Long Beach, CA 90804

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9.18 mi away

Schedule Appointment 562-597-5231
Monday: 7:00 am-3:30 pm
Tuesday: 7:00 am-3:30 pm
Wednesday: 7:00 am-3:30 pm
Thursday: 7:00 am-3:30 pm
Friday: 7:00 am-3:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Los Angeles East Cesar Chavez - Employer Drug Testing Not Offered

1632 E. Cesar Chavez Ave,

Los Angeles, CA 90033

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9.79 mi away

Schedule Appointment 213-200-8501
Monday: 6:00 am-3:00 pm
Tuesday: 6:00 am-3:00 pm
Wednesday: 6:00 am-3:00 pm
Thursday: 6:00 am-3:00 pm
Friday: 6:00 am-3:00 pm
Saturday: Closed
Sunday: Closed

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Our company

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.