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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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Sharp Rees-Stealy Downtown (Preferred)

300 Fir St,

San Diego, CA 92101

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0.55 mi away

619-446-1524
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
Akeso Occ Health - Downtown San Diego (Preferred)

1620 5Th Ave,

Ste 200

San Diego, CA 92101

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0.65 mi away

619-810-8822
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
ARCpoint Labs of San Diego (Preferred)

3434 Midway Dr,

Ste 1004

San Diego, CA 92110

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2.78 mi away

619-963-2105
Monday: 8:30 am-4:00 pm
Tuesday: 8:30 am-4:00 pm
Wednesday: 8:30 am-4:00 pm
Thursday: 8:30 am-4:00 pm
Friday: 8:30 am-4:00 pm
Saturday: Closed
Sunday: Closed
ADAT Inc (Preferred)

2667 Camino Del Rio S,

Ste 100H

San Diego, CA 92108

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3.6 mi away

619-295-9284
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
Akeso Occ Health - Mission Valley (Preferred)

7485 Mission Valley Rd,

Ste 100

San Diego, CA 92108

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3.77 mi away

619-900-1330
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
Sharp Rees-Stealy Genesee (Preferred)

2020 Genesee Ave,

San Diego, CA 92123

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4.65 mi away

858-616-8400
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
Akeso Occ Health - National City (Preferred)

444 W 8Th St,

National City, CA 91950

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4.75 mi away

619-474-8666
Monday: 6:30 am-6:00 pm
Tuesday: 6:30 am-6:00 pm
Wednesday: 6:30 am-6:00 pm
Thursday: 6:30 am-6:00 pm
Friday: 6:30 am-6:00 pm
Saturday: 9:00 am-2:00 pm
Sunday: Closed
RCDA Testing - San Diego (Preferred)

4410 Glacier Ave,

Ste 101

San Diego, CA 92120

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5.87 mi away

619-310-5481
Monday: 9:00 am-6:00 pm
Tuesday: 9:00 am-6:00 pm
Wednesday: 9:00 am-6:00 pm
Thursday: 9:00 am-6:00 pm
Friday: 9:00 am-6:00 pm
Saturday: Closed
Sunday: Closed
E&J Medical Services - San Diego - Ste 142 (Preferred)

8775 Aero Dr,

Ste 142

San Diego, CA 92123

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6.06 mi away

714-657-6487
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
Akeso Occ Health - Chula Vista (Preferred)

1510 Sweetwater Rd,

Ste B

National City, CA 91950

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6.49 mi away

619-552-2870
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
Sharp Rees-Stealy Chula Vista (Preferred)

525 3Rd Ave,

Second Floor

Chula Vista, CA 91910

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8.1 mi away

619-585-4050
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
Sharp Rees-Stealy La Mesa (Preferred)

5525 Grossmont Center Dr,

Ste 601

La Mesa, CA 91942

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9.46 mi away

619-644-6600
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
RCDA Testing (Preferred)

319 Palomar St,

Chula Vista, CA 91911

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9.92 mi away

619-500-5303
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
Fastest Labs of El Cajon (Preferred)

700 N Johnson Ave,

Ste G

El Cajon, CA 92020

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11.97 mi away

619-938-4422
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
Sharp Rees-Stealy Sorrento Mesa (Preferred)

10243 Genetic Center Dr,

San Diego, CA 92121

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12.52 mi away

858-526-6150
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
Omega Compliance Solutions LLC (Preferred)

1614 Pioneer Way,

El Cajon, CA 92020

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12.53 mi away

619-312-1545
Monday: 9:30 am-3:30 pm
Tuesday: 9:30 am-3:30 pm
Wednesday: 9:30 am-3:30 pm
Thursday: 9:30 am-3:30 pm
Friday: 9:30 am-3:30 pm
Saturday: Closed
Sunday: Closed
East County Urgent Care (Preferred)

1625 E Main St,

Ste 102

El Cajon, CA 92021

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14.58 mi away

619-376-1082
Monday: 8:00 am-4:30 pm
Tuesday: 8:00 am-4:30 pm
Wednesday: 8:00 am-4:30 pm
Thursday: 8:00 am-4:30 pm
Friday: 8:00 am-4:30 pm
Saturday: 9:00 am-2:30 pm
Sunday: 9:00 am-2:30 pm
Tramites De California (Preferred)

2330 Enrico Fermi Dr,

Ste F

San Diego, CA 92154

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17.48 mi away

619-671-7844
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
Sharp Rees-Stealy Rancho Bernardo (Preferred)

16899 W Bernardo Dr,

San Diego, CA 92127

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21.05 mi away

858-521-2350
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
Carbon Health - Escondido (Preferred)

1855 S Centre City Pkwy,

Ste 1885B

Escondido, CA 92025

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26.46 mi away

442-325-3758
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-5:00 pm
Sunday: 9:00 am-5:00 pm
Carbon Health - Carlsbad (Preferred)

6971 El Camino Real,

Ste 101

Carlsbad, CA 92009

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26.69 mi away

760-208-4998
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-5:00 pm
Sunday: 9:00 am-5:00 pm
Carbon Health - San Marcos (Preferred)

109 S Las Posas Rd,

Ste 100

San Marcos, CA 92078

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28.73 mi away

442-325-3354
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-5:00 pm
Sunday: 9:00 am-5:00 pm
Akeso Occ Health - Vista (Preferred)

2365 S Melrose Dr,

Vista, CA 92081

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29.19 mi away

760-571-5910
Monday: 8:00 am-6:00 pm
Tuesday: 8:00 am-6:00 pm
Wednesday: 8:00 am-6:00 pm
Thursday: 8:00 am-6:00 pm
Friday: 8:00 am-6:00 pm
Saturday: Closed
Sunday: Closed
Drug Testing Network, Inc. (Preferred)

969 S Santa Fe Ave,

Ste D

Vista, CA 92083

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32.44 mi away

760-940-2015
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
Akeso Occ Health - Oceanside (Preferred)

3156 Vista Way,

Ste 100

Oceanside, CA 92056

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32.63 mi away

760-681-5222
Monday: 24 hrs
Tuesday: 24 hrs
Wednesday: 24 hrs
Thursday: 24 hrs
Friday: 24 hrs
Saturday: 24 hrs
Sunday: 24 hrs
Carbon Health - Oceanside (Preferred)

2484 Vista Way,

Ste 2484A

Oceanside, CA 92054

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32.78 mi away

442-372-7129
Monday: 9:00 am-3:30 pm
Tuesday: 9:00 am-3:30 pm
Wednesday: 9:00 am-3:30 pm
Thursday: 9:00 am-3:30 pm
Friday: 9:00 am-3:30 pm
Saturday: 9:00 am-3:30 pm
Sunday: 9:00 am-3:30 pm

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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.