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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 - San Jose Willow Street

840 Willow St,

Ste 700

San Jose, CA 95125

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0.99 mi away

Schedule Appointment 408-314-4861
Monday: 7:00 am-3:00 pm
Tuesday: 7:00 am-3:00 pm
Wednesday: 7:00 am-3:00 pm
Thursday: 7:00 am-3:00 pm
Friday: 7:00 am-3:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - San Jose DiSalvo Avenue

123 DiSalvo Ave,

Suite 10

San Jose, CA 95128

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3.08 mi away

Schedule Appointment 408-314-4642
Monday: 7:00 am-3:00 pm
Tuesday: 7:00 am-3:00 pm
Wednesday: 7:00 am-3:00 pm
Thursday: 7:00 am-3:00 pm
Friday: 7:00 am-3:00 pm
Saturday: 7:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - San Jose 2581 Samaritan Drive

2581 Samaritan Drive,

Suite 108

San Jose, CA 95124

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4.13 mi away

Schedule Appointment 669-245-2578
Monday: 6:30 am-4:30 pm
Tuesday: 6:30 am-4:30 pm
Wednesday: 6:30 am-4:30 pm
Thursday: 6:30 am-4:30 pm
Friday: 6:30 am-4:30 pm
Saturday: 7:30 am-11:30 am
Sunday: Closed
Quest Diagnostics - San Jose Quimby Road - Employer Drug Testing Not Offered

2365 Quimby Rd,

Ste 211

San Jose, CA 95122

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4.95 mi away

Schedule Appointment 408-274-2670
Monday: 6:00 am-4:00 pm
Tuesday: 6:00 am-4:00 pm
Wednesday: 6:00 am-4:00 pm
Thursday: 6:00 am-4:00 pm
Friday: 6:00 am-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - San Jose Graves Avenue - Employer Drug Testing Not Offered

5150 Graves Avenue,

Suite 10-D

San Jose, CA 95129

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5.17 mi away

Schedule Appointment 408-253-8066
Monday: 7:00 am-3:00 pm
Tuesday: 7:00 am-3:00 pm
Wednesday: 7:00 am-3:00 pm
Thursday: 7:00 am-3:00 pm
Friday: 7:00 am-3:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - San Jose Alum Rock Avenue

2618 Alum Rock Ave,

San Jose, CA 95116

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5.44 mi away

Schedule Appointment 408-202-6029
Monday: 6:00 am-4:00 pm
Tuesday: 6:00 am-4:00 pm
Wednesday: 6:00 am-4:00 pm
Thursday: 6:00 am-4:00 pm
Friday: 6:00 am-4:00 pm
Saturday: 6:00 am-10:00 am
Sunday: Closed
Quest Diagnostics - San Jose Camden Avenue - Employer Drug Testing Not Offered

6475 Camden Avenue,

Suite 104

San Jose, CA 95120

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5.47 mi away

Schedule Appointment 408-335-9650
Monday: 7:00 am-3:00 pm
Tuesday: 7:00 am-3:00 pm
Wednesday: 7:00 am-3:00 pm
Thursday: 7:00 am-3:00 pm
Friday: 7:00 am-3:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Quest Diagnostics-ExamOne-SJ

3150 De La Cruz Blvd,

Examone Suite 160

Santa Clara, CA 95054

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6.34 mi away

Schedule Appointment 669-454-6161
Monday: 8:30 am-11:30 am , 1:30 pm-2:30 pm
Tuesday: 8:30 am-11:30 am , 1:30 pm-2:30 pm
Wednesday: 8:30 am-11:30 am , 1:30 pm-2:30 pm
Thursday: 8:30 am-11:30 am , 1:30 pm-2:30 pm
Friday: 8:30 am-11:30 am , 1:30 pm-2:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Inside 785 E EL Camino Real Safeway Store - Employer Drug Testing Not Offered

785 E El Camino Real,

Sunnyvale, CA 94087

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7.78 mi away

Schedule Appointment 408-220-6165
Monday: 6:30 am-11:00 am , 12:00 pm-3:30 pm
Tuesday: 6:30 am-11:00 am , 12:00 pm-3:30 pm
Wednesday: 6:30 am-11:00 am , 12:00 pm-3:30 pm
Thursday: 6:30 am-11:00 am , 12:00 pm-3:30 pm
Friday: 6:30 am-11:00 am , 12:00 pm-3:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Inside Cupertino Safeway - Employer Drug Testing Not Offered

20620 Homestead Rd,

Cupertino, CA 95014

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7.93 mi away

Schedule Appointment 408-337-3093
Monday: 8:00 am-12:00 pm , 1:00 pm-5:00 pm
Tuesday: 8:00 am-12:00 pm , 1:00 pm-5:00 pm
Wednesday: 8:00 am-12:00 pm , 1:00 pm-5:00 pm
Thursday: 8:00 am-12:00 pm , 1:00 pm-5:00 pm
Friday: 8:00 am-12:00 pm , 1:00 pm-5:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Milpitas East Calaveras Boulevard

649 E Calaveras Blvd,

Milpitas, CA 95035

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9.47 mi away

Schedule Appointment 408-204-4399
Monday: 7:00 am-3:00 pm
Tuesday: 7:00 am-3:00 pm
Wednesday: 7:00 am-3:00 pm
Thursday: 7:00 am-3:00 pm
Friday: 7:00 am-3:00 pm
Saturday: 7:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - Mountain View South Drive

205 South Dr,

Ste G

Mountain View, CA 94040

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10.97 mi away

Schedule Appointment 408-202-4085
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 - Inside Mountain View Safeway Store - Employer Drug Testing Not Offered

645 San Antonio Rd,

Mountain View, CA 94040

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13.64 mi away

Schedule Appointment 650-946-3095
Monday: 8:00 am-12:00 pm , 1:00 pm-5:00 pm
Tuesday: 8:00 am-12:00 pm , 1:00 pm-5:00 pm
Wednesday: 8:00 am-12:00 pm , 1:00 pm-5:00 pm
Thursday: 8:00 am-12:00 pm , 1:00 pm-5:00 pm
Friday: 8:00 am-12:00 pm , 1:00 pm-5:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Employer Drug Testing Not Offered - Morgan Hill East Main Street

50 East Main Avenue,

Suite B

Morgan Hill, CA 95037

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17.14 mi away

Schedule Appointment 408-201-3251
Monday: 7:00 am-3:00 pm
Tuesday: 7:00 am-3:00 pm
Wednesday: 7:00 am-3:00 pm
Thursday: 7:00 am-3:00 pm
Friday: 7:00 am-3:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Fremont Liberty - Employer Drug Testing Not Offered

39273 Liberty St,

Fremont, CA 94538

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18.17 mi away

Schedule Appointment 510-203-2468
Monday: 6:00 am-4:00 pm
Tuesday: 6:00 am-4:00 pm
Wednesday: 6:00 am-4:00 pm
Thursday: 6:00 am-4:00 pm
Friday: 6:00 am-4:00 pm
Saturday: 6:30 am-11:00 am
Sunday: Closed
Quest Diagnostics - Inside Menlo Park Safeway Store - Employer Drug Testing Not Offered

525 El Camino Real,

Menlo Park, CA 94025

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18.47 mi away

Schedule Appointment 650-687-0177
Monday: 7:00 am-11:30 am , 12:30 pm-4:00 pm
Tuesday: 7:00 am-11:30 am , 12:30 pm-4:00 pm
Wednesday: 7:00 am-11:30 am , 12:30 pm-4:00 pm
Thursday: 7:00 am-11:30 am , 12:30 pm-4:00 pm
Friday: 7:00 am-11:30 am , 12:30 pm-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Scotts Valley 4340 Scotts Valley Dr

4340 Scotts Valley Dr,

Ste F

Scotts Valley, CA 95066

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18.48 mi away

Schedule Appointment 831-227-2461
Monday: 7:00 am-11:00 am , 12:00 pm-3:30 pm
Tuesday: 7:00 am-11:00 am , 12:00 pm-3:30 pm
Wednesday: 7:00 am-11:00 am , 12:00 pm-3:30 pm
Thursday: 7:00 am-11:00 am , 12:00 pm-3:30 pm
Friday: 7:00 am-11:00 am , 12:00 pm-3:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Fremont 2191 Mowry - Employer Drug Testing Not Offered

2191 Mowry Avenue,

Suite 500B

Fremont, CA 94538

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18.67 mi away

Schedule Appointment 510-203-2870
Monday: 6:30 am-5:00 pm
Tuesday: 6:30 am-5:00 pm
Wednesday: 6:30 am-5:00 pm
Thursday: 6:30 am-5:00 pm
Friday: 6:30 am-5:00 pm
Saturday: 6:30 am-11:00 am
Sunday: Closed
Quest Diagnostics - Santa Cruz Soquel - Employer Drug Screens Not Offered

1595 Soquel Drive,

Suite 100

Santa Cruz, CA 95065

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21.69 mi away

Schedule Appointment 831-462-6671
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 - San Carlos Laurel Street

1100 Laurel Street,

Suite F

San Carlos, CA 94070

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23.65 mi away

Schedule Appointment 650-593-9279
Monday: 7:00 am-11:00 am , 11:30 am-3:00 pm
Tuesday: 7:00 am-11:00 am , 11:30 am-3:00 pm
Wednesday: 7:00 am-11:00 am , 11:30 am-3:00 pm
Thursday: 7:00 am-11:00 am , 11:30 am-3:00 pm
Friday: 7:00 am-11:00 am , 11:30 am-3:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Inside Santa Cruz Safeway Store - Employer Drug Testing Not Offered

2203 Mission St,

Santa Cruz, CA 95060

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24.45 mi away

Schedule Appointment 831-201-2181
Monday: 7:30 am-11:30 am , 12:30 pm-4:30 pm
Tuesday: 7:30 am-11:30 am , 12:30 pm-4:30 pm
Wednesday: 7:30 am-11:30 am , 12:30 pm-4:30 pm
Thursday: 7:30 am-11:30 am , 12:30 pm-4:30 pm
Friday: 7:30 am-11:30 am , 12:30 pm-4:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Gilroy No Name Uno- Employer Drug Testing Not Offered

9360 No Name Uno,

Ste 220

Gilroy, CA 95020

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24.89 mi away

Schedule Appointment 408-337-3231
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

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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.