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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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US Facilities & Operations International Facilities & Operations

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COMP - Riverside (Preferred)

4300 Central Ave,

Riverside, CA 92506

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3.19 mi away

951-222-2206
Monday: 8:00 am-7:00 pm
Tuesday: 8:00 am-7:00 pm
Wednesday: 8:00 am-7:00 pm
Thursday: 8:00 am-7:00 pm
Friday: 8:00 am-7:00 pm
Saturday: 8:00 am-7:00 pm
Sunday: 8:00 am-7:00 pm
Akeso Occ Health - Riverside (Preferred)

3579 Arlington Ave,

Ste 300

Riverside, CA 92506

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3.49 mi away

951-341-9333
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
Healthpointe - Colton (Preferred)

290 N 10Th St,

Ste 100

Colton, CA 92324

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5.71 mi away

909-264-2500
Monday: Vary
Tuesday: Vary
Wednesday: Vary
Thursday: Vary
Friday: Vary
Saturday: Vary
Sunday: Vary
Quest Diagnostics - Riverside Canyon Springs Pkwy

2711 Canyon Springs Pkwy,

Ste 101

Riverside, CA 92507

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6.14 mi away

Schedule Appointment 951-201-8724
Monday: 7:00 am-4:30 pm
Tuesday: 7:00 am-4:30 pm
Wednesday: 7:00 am-4:30 pm
Thursday: 7:00 am-4:30 pm
Friday: 7:00 am-4:30 pm
Saturday: Closed
Sunday: Closed
DOT Exam Professionals (Preferred)

1894 Commercenter W,

Ste 106

San Bernardino, CA 92408

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6.79 mi away

909-333-7448
Monday: 9:00 am-5:00 pm
Tuesday: 9:00 am-5:00 pm
Wednesday: 9:00 am-5:00 pm
Thursday: 9:00 am-5:00 pm
Friday: 9:00 am-5:00 pm
Saturday: Closed
Sunday: Closed
COMP - San Bernardino (Preferred)

295 E. Caroline St.,

Suite D1

San Bernardino, CA 92408

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6.79 mi away

909-723-1161
Monday: 9:00 am-5:30 pm
Tuesday: 9:00 am-5:30 pm
Wednesday: 9:00 am-5:30 pm
Thursday: 9:00 am-5:30 pm
Friday: 9:00 am-5:30 pm
Saturday: Closed
Sunday: Closed
Moreno Valley Urgent Care, Inc. (Preferred)

24318 Hemlock Ave,

Ste E1

Moreno Valley, CA 92557

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7.88 mi away

951-243-5050
Monday: 8:00 am-7:00 pm
Tuesday: 8:00 am-7:00 pm
Wednesday: 8:00 am-7:00 pm
Thursday: 8:00 am-7:00 pm
Friday: 8:00 am-7:00 pm
Saturday: 10:00 am-1:30 pm
Sunday: 10:00 am-2:00 pm
COMP - Moreno Valley (Preferred)

13800 Heacock St Ste C134,

Moreno Valley, CA 92553

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8.61 mi away

951-656-6009
Monday: 7:00 am-7:00 pm
Tuesday: 7:00 am-7:00 pm
Wednesday: 7:00 am-7:00 pm
Thursday: 7:00 am-7:00 pm
Friday: 7:00 am-7:00 pm
Saturday: Closed
Sunday: Closed
Ontario Testing Center, Inc (Preferred)

402 S Milliken Ave,

Ste E2

Ontario, CA 91761

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10.8 mi away

909-937-3955
Monday: 9:00 am-5:00 pm
Tuesday: 9:00 am-5:00 pm
Wednesday: 9:00 am-5:00 pm
Thursday: 9:00 am-5:00 pm
Friday: 9:00 am-5:00 pm
Saturday: 9:00 am-12:00 pm
Sunday: Closed
COMP - Ontario (Preferred)

59 S Milliken Ave,

Ste 100

Ontario, CA 91761

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10.85 mi away

909-605-8888
Monday: 9:00 am-5:30 pm
Tuesday: 9:00 am-5:30 pm
Wednesday: 9:00 am-5:30 pm
Thursday: 9:00 am-5:30 pm
Friday: 9:00 am-5:30 pm
Saturday: 9:00 am-5:30 pm
Sunday: 9:00 am-5:30 pm
ProActive Work Ontario (Preferred)

1801 Excise Ave,

Ste 108

Ontario, CA 91761

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11.24 mi away

909-390-3400
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: Closed
Sunday: Closed
Carbon Health - Eastvale (Preferred)

14117 Limonite Ave,

Bldg 2 Ste 300

Eastvale, CA 92880

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11.65 mi away

951-462-2758
Monday: 9:00 am-4:00 pm
Tuesday: 9:00 am-4:00 pm
Wednesday: 9:00 am-4:00 pm
Thursday: 9:00 am-4:00 pm
Friday: 9:00 am-4:00 pm
Saturday: 9:00 am-4:00 pm
Sunday: 9:00 am-4:00 pm
Carbon Health - Rancho Cucamonga (Preferred)

7831 Monticello Ave,

Ste 1102

Rancho Cucamonga, CA 91739

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11.77 mi away

909-850-4453
Monday: 10:00 am-4:00 pm
Tuesday: 10:00 am-4:00 pm
Wednesday: 10:00 am-4:00 pm
Thursday: 10:00 am-4:00 pm
Friday: 10:00 am-4:00 pm
Saturday: 9:00 am-3:00 pm
Sunday: 9:00 am-3:00 pm
ExamOne - Riverside (Preferred)

9220 Haven Ave,

Ste 250

Rancho Cucamonga, CA 91730

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12.46 mi away

855-570-3926
Monday: 9:00 am-3:00 pm
Tuesday: 9:00 am-3:00 pm
Wednesday: 9:00 am-3:00 pm
Thursday: 9:00 am-3:00 pm
Friday: 9:00 am-3:00 pm
Saturday: Closed
Sunday: Closed
Arrow Occupational Medicine Center (Preferred)

10837 Laurel St,

Ste 206

Rancho Cucamonga, CA 91730

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12.84 mi away

909-297-5070
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 - Corona W 6th St (308 W. 6th street suite 201)

308 W 6Th St,

Suite 201

Corona, CA 92882

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13.35 mi away

Schedule Appointment 951-415-5610
Monday: 7:00 am-4:30 pm
Tuesday: 7:00 am-4:30 pm
Wednesday: 7:00 am-4:30 pm
Thursday: 7:00 am-4:30 pm
Friday: 7:00 am-4:30 pm
Saturday: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Corona Main

2250 S. Main St,

Ste 105

Corona, CA 92882

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14.24 mi away

Schedule Appointment 951-415-4195
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
COMP - Corona (Preferred)

1690 W 6Th St,

Ste K

Corona, CA 92882

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14.41 mi away

951-736-9500
Monday: 9:00 am-7:00 pm
Tuesday: 9:00 am-7:00 pm
Wednesday: 9:00 am-7:00 pm
Thursday: 9:00 am-7:00 pm
Friday: 9:00 am-7:00 pm
Saturday: Closed
Sunday: Closed
Carbon Health - Corona (Preferred)

3955 Bedford Canyon Rd,

Unit 103

Corona, CA 92883

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14.48 mi away

951-394-7556
Monday: 9:00 am-4:00 pm
Tuesday: 9:00 am-4:00 pm
Wednesday: 9:00 am-4:00 pm
Thursday: 9:00 am-4:00 pm
Friday: 9:00 am-4:00 pm
Saturday: 9:00 am-4:00 pm
Sunday: 9:00 am-4:00 pm
Quest Diagnostics - Upland Foothill

1399 E Foothill Blvd,

Ste B

Upland, CA 91786

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15.75 mi away

Schedule Appointment 909-946-9405
Monday: 5:00 am-4:00 pm
Tuesday: 5:00 am-4:00 pm
Wednesday: 5:00 am-4:00 pm
Thursday: 5:00 am-4:00 pm
Friday: 5:00 am-4:00 pm
Saturday: 7:00 am-11:00 am
Sunday: Closed
Carbon Health - Chino (Preferred)

11971 Central Ave,

Ste B

Chino, CA 91710

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16.98 mi away

909-757-8631
Monday: 10:00 am-4:00 pm
Tuesday: 10:00 am-4:00 pm
Wednesday: 10:00 am-4:00 pm
Thursday: 10:00 am-4:00 pm
Friday: 10:00 am-4:00 pm
Saturday: 10:00 am-4:00 pm
Sunday: 10:00 am-4:00 pm
Carbon Health - Chino Hills (Preferred)

15840 Soquel Canyon Pkwy,

Chino Hills, CA 91709

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17.07 mi away

909-850-4359
Monday: 10:00 am-4:00 pm
Tuesday: 10:00 am-4:00 pm
Wednesday: 10:00 am-4:00 pm
Thursday: 10:00 am-4:00 pm
Friday: 10:00 am-4:00 pm
Saturday: 10:00 am-4:00 pm
Sunday: 10:00 am-4:00 pm
Quest Diagnostics - Chino Grand Ave

4028 Grand Ave,

Ste B

Chino, CA 91710

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18.18 mi away

Schedule Appointment 909-548-3485
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: Closed
Sunday: Closed
ProActive Work Pomona (Preferred)

502 S Garey Ave,

Pomona, CA 91766

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20.38 mi away

909-620-8887
Monday: 8:00 am-11:30 am , 1:30 pm-5:00 pm
Tuesday: 8:00 am-11:30 am , 1:30 pm-5:00 pm
Wednesday: 8:00 am-11:30 am , 1:30 pm-5:00 pm
Thursday: 8:00 am-11:30 am , 1:30 pm-5:00 pm
Friday: 8:00 am-11:30 am , 1:30 pm-5:00 pm
Saturday: Closed
Sunday: Closed
Rancho Paseo Medical Grp (Preferred)

835 Highland Springs Ave,

Ste 300

Beaumont, CA 92223

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22.87 mi away

951-769-0079
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-3:30 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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23.83 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
Sunrise Medical Group - Anaheim (Preferred)

5475 E La Palma Ave,

Ste 100

Anaheim, CA 92807

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24.26 mi away

714-970-0911
Monday: 7:00 am-7:00 pm
Tuesday: 7:00 am-7:00 pm
Wednesday: 7:00 am-7:00 pm
Thursday: 7:00 am-7:00 pm
Friday: 7:00 am-7:00 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.