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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 - Escondido Valley Parkway

488 E Valley Pkwy,

Suite 314

Escondido, CA 92025

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25.35 mi away

Schedule Appointment 760-317-8980
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 - Temecula Parkway - Employer Drug Testing Not Offered

31150 Temecula Parkway,

Ste 203

Temecula, CA 92592

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27.68 mi away

Schedule Appointment 951-719-1140
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 - Poway Pomerado - Employer Drug Testing Not Offered

15725 Pomerado Rd,

Ste 208

Poway, CA 92064

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29.6 mi away

Schedule Appointment 619-318-3589
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 - Temecula Single Oak- Employer Drug Testing Not Offered

28780 Single Oak Dr,

Ste 275

Temecula, CA 92590

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30.33 mi away

Schedule Appointment 951-297-8829
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 - Temecula Jefferson - Employer Drug Testing Not Offered

27699 Jefferson Ave,

Ste 109

Temecula, CA 92590

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30.77 mi away

Schedule Appointment 951-225-2474
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: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Vista Sycamore - Employer Drug Testing Not Offered

902 Sycamore Ave,

Ste 201

Vista, CA 92081

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31.42 mi away

Schedule Appointment 442-204-2565
Monday: 7:30 am-11:30 am
Tuesday: 7:30 am-11:30 am
Wednesday: 7:30 am-11:30 am
Thursday: 7:30 am-11:30 am
Friday: 7:30 am-11:30 am
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Fallbrook East Elder Street - Employer Drug Testing Not Offered

521 E Elder St,

Ste 201

Fallbrook, CA 92028

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31.93 mi away

Schedule Appointment 442-245-0985
Monday: 7:30 am-11:30 am , 12:30 pm-2:30 pm
Tuesday: 7:30 am-11:30 am , 12:30 pm-2:30 pm
Wednesday: 7:30 am-11:30 am , 12:30 pm-2:30 pm
Thursday: 7:30 am-11:30 am , 12:30 pm-2:30 pm
Friday: 7:30 am-11:30 am , 12:30 pm-2:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Murrieta Hancock - Employer Drug Testing Not Offered

25405 Hancock Ave,

Ste 102

Murrieta, CA 92562

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33.48 mi away

Schedule Appointment 951-414-5645
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 - Murrieta Medical Center - Employer Drug Testing Not Offered

25460 Medical Center Dr,

Ste 102

Murrieta, CA 92562

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33.51 mi away

Schedule Appointment 951-414-5642
Monday: 6:30 am-4:00 pm
Tuesday: 6:30 am-4:00 pm
Wednesday: 6:30 am-4:00 pm
Thursday: 6:30 am-4:00 pm
Friday: 6:30 am-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Inside La Quinta Vons Store - Employer Drug Testing Not Offered

78-271 State Hwy 111,

La Quinta, CA 92253

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34.52 mi away

Schedule Appointment 760-238-4096
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 - Palm Desert Country Club Dr

73091 Country Club Dr,

Ste A4

Palm Desert, CA 92260

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34.78 mi away

Schedule Appointment 442-256-1509
Monday: 8:00 am-12:00 pm , 1:00 pm-4:00 pm
Tuesday: 8:00 am-12:00 pm , 1:00 pm-4:00 pm
Wednesday: 8:00 am-12:00 pm , 1:00 pm-4:00 pm
Thursday: 8:00 am-12:00 pm , 1:00 pm-4:00 pm
Friday: 8:00 am-12:00 pm , 1:00 pm-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Hemet Stetson - Employer Drug Testing Not Offered

3853 W Stetson Ave,

Ste 101

Hemet, CA 92545

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35.35 mi away

Schedule Appointment 951-282-5064
Monday: 5:30 am-4:00 pm
Tuesday: 5:30 am-4:00 pm
Wednesday: 5:30 am-4:00 pm
Thursday: 5:30 am-4:00 pm
Friday: 5:30 am-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Hemet Latham Ave

850 E Latham Ave,

Ste. 203 & 204

Hemet, CA 92543

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35.37 mi away

Schedule Appointment 951-663-7376
Monday: 8:00 am-5:00 pm
Tuesday: 8:00 am-5:00 pm
Wednesday: 8:00 am-5:00 pm
Thursday: 8:00 am-5:00 pm
Friday: 8:00 am-5:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Oceanside Vista - Employer Drug Testing Not Offered

3601 Vista Way,

Ste 104

Oceanside, CA 92056

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35.72 mi away

Schedule Appointment 760-722-7148
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 - Indio Doctor Carreon Boulevard

81-715 Dr Carreon Blvd,

Ste A-4

Indio, CA 92201

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35.9 mi away

Schedule Appointment 442-241-5914
Monday: 7:30 am-12:00 pm , 1:00 pm-4:00 pm
Tuesday: 7:30 am-12:00 pm , 1:00 pm-4:00 pm
Wednesday: 7:30 am-12:00 pm , 1:00 pm-4:00 pm
Thursday: 7:30 am-12:00 pm , 1:00 pm-4:00 pm
Friday: 7:30 am-12:00 pm , 1:00 pm-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Hemet Florida Ave

1850 W Florida Ave,

Hemet, CA 92545

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36.01 mi away

Schedule Appointment 951-282-9151
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 - Murrieta Antelope

33050 Antelope Rd,

Ste 204

Murrieta, CA 92563

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36.09 mi away

Schedule Appointment 951-954-2424
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 - Encinitas El Camino Real - Employer Drug Testing Not Offered

477 N El Camino Real,

Ste B201

Encinitas, CA 92024

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36.21 mi away

Schedule Appointment 760-753-0281
Monday: 7:30 am-4:30 pm
Tuesday: 7:30 am-4:30 pm
Wednesday: 7:30 am-4:30 pm
Thursday: 7:30 am-4:30 pm
Friday: 7:30 am-4:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Santee Mission Gorge

9665 Mission Gorge Rd,

Ste B2

Santee, CA 92071

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36.29 mi away

Schedule Appointment 442-225-2784
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 - Palm Springs Tachevah Drive

555 E Tachevah Dr,

Ste 102w

Palm Springs, CA 92262

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37.82 mi away

Schedule Appointment 760-219-7592
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
Quest Diagnostics - El Cajon Jamacha Road - Employer Drug Testing Not Offered

860 Jamacha Rd,

Ste 103

El Cajon, CA 92019

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38.26 mi away

Schedule Appointment 619-219-9080
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 - Menifee Haun Road - Employer Drug Testing Not Offered

29798 Haun Rd,

Ste 206

Menifee, CA 92586

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38.65 mi away

Schedule Appointment 951-370-9837
Monday: 5:00 am-4:30 pm
Tuesday: 5:00 am-4:30 pm
Wednesday: 5:00 am-4:30 pm
Thursday: 5:00 am-4:30 pm
Friday: 5:00 am-4:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - La Mesa Fletcher Parkway - Employer Drug Testing Not Offered

8881 Fletcher Pkwy,

Ste 285

La Mesa, CA 91942

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40.05 mi away

Schedule Appointment 619-589-9211
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 - Sun City Bradley - Employer Drug Testing Not Offered

28125 Bradley Rd,

Ste 245

Sun City, CA 92586

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40.46 mi away

Schedule Appointment 951-434-8931
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 - San Diego Genesee - Employer Drug Testing Not Offered

9333 Genesee Ave,

Ste 180

San Diego, CA 92121

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41.54 mi away

Schedule Appointment 858-587-2702
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 - Lake Elsinore Mission Trail Road

32251 Mission Trl,

Ste G1

Lake Elsinore, CA 92530

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42.19 mi away

Schedule Appointment 951-471-3231
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 - SAN DIEGO-FOURTH AVE - Employer Drug Testing Not Offered

4060 4th Ave,

Ste 125

San Diego, CA 92103

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46.33 mi away

Schedule Appointment 619-291-4890
Monday: 8:00 am-5:00 pm
Tuesday: 8:00 am-5:00 pm
Wednesday: 8:00 am-5:00 pm
Thursday: 8:00 am-5:00 pm
Friday: 8:00 am-5:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Perris 1688 N Perris Blvd - Employer Drug Testing Not Offered

1688 N Perris Blvd,

Ste H1

Perris, CA 92571

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46.41 mi away

Schedule Appointment 951-238-9634
Monday: 7:00 am-12:30 pm
Tuesday: 7:00 am-12:30 pm
Wednesday: 7:00 am-12:30 pm
Thursday: 7:00 am-12:30 pm
Friday: 7:00 am-12:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Beaumont Highland Springs Avenue - Employer Drug Testing Not Offered

701 Highland Springs Ave,

Ste 6

Beaumont, CA 92223

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46.57 mi away

Schedule Appointment 909-328-0177
Monday: 6:30 am-2:30 pm
Tuesday: 6:30 am-2:30 pm
Wednesday: 6:30 am-2:30 pm
Thursday: 6:30 am-2:30 pm
Friday: 6:30 am-2:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Chula Vista Kuhn Drive - Employer Drug Testing Not Offered

841 Kuhn Dr,

Ste 101

Chula Vista, CA 91914

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47.42 mi away

Schedule Appointment 619-482-9372
Monday: 7:00 am-11:00 am
Tuesday: 7:00 am-11:00 am
Wednesday: 7:00 am-11:00 am
Thursday: 7:00 am-11:00 am
Friday: 7:00 am-11:00 am
Saturday: Closed
Sunday: Closed
Quest Diagnostics - SAN DIEGO-FIRST AVE- Employer Drug Testing Not Offered

1855 First Avenue,

Ste 200-B

San Diego, CA 92101

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47.86 mi away

Schedule Appointment 619-236-0081
Monday: 9:00 am-1:00 pm , 1:30 pm-3:00 pm
Tuesday: 9:00 am-1:00 pm , 1:30 pm-2:30 pm
Wednesday: 9:00 am-1:00 pm , 1:30 pm-2:30 pm
Thursday: 9:00 am-1:00 pm , 1:30 pm-2:30 pm
Friday: 9:00 am-1:00 pm , 1:30 pm-3:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - National City East 8th Street - Employer Drug Testing Not Offered

2340 E 8th St,

Ste F

National City, CA 91950

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48.15 mi away

Schedule Appointment 619-479-8463
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

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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.