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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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Romeo Medical Clinic (Preferred)

1801 Colorado Ave,

Ste 130

Turlock, CA 95382

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6.55 mi away

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: Closed
Sunday: Closed
Olivewood Meadows Occ Health Center (Preferred)

374 W Olive Ave,

Ste A

Merced, CA 95348

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17.6 mi away

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 Modesto (Preferred)

400 12Th St,

Ste 4

Modesto, CA 95354

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18.5 mi away

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
WorkHub Work Health Services (Preferred)

1501 Oakdale Rd,

Ste 301

Modesto, CA 95355

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19.11 mi away

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: 9:00 am-1:00 pm
Sunday: 9:00 am-1:00 pm
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20.6 mi away

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
Manteca Family Chiropractic (Preferred)

965 E Yosemite Ave,

Ste 9

Manteca, CA 95336

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34.23 mi away

Monday: 9:00 am-5:00 pm
Tuesday: 9:00 am-12:00 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
ARCpoint Labs of Manteca (Preferred)

119 N Maple Ave,

Ste A

Manteca, CA 95336

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34.77 mi away

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
Fastest Labs of Stockton (Preferred)

253 W Louise Ave,

Manteca, CA 95336

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35.56 mi away

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: Closed
Saturday: Closed
Sunday: Closed
COMP Manteca (Preferred)

165 Saint Dominics Dr,

Ste 202

Manteca, CA 95337

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35.8 mi away

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
Prime Drug Testing LLC (Preferred)

143 Darcy Pkwy,

Lathrop, CA 95330

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37.91 mi away

Monday: 8:30 am-5:00 pm
Tuesday: 8:30 am-5:00 pm
Wednesday: 8:30 am-5:00 pm
Thursday: 8:30 am-5:00 pm
Friday: 8:30 am-5:00 pm
Saturday: 10:00 am-3:00 pm
Sunday: Closed
No Drugs Inc - Tracy (Preferred)

652 W 11Th St,

Ste 133

Tracy, CA 95376

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41.09 mi away

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: Closed
Sunday: Closed
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41.13 mi away

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
COMP Tracy (Preferred)

2156 W Grant Line Rd,

Ste 200

Tracy, CA 95377

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42.48 mi away

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 - Mariposa Highway 49

5300 Highway 49 N,

Mariposa, CA 95338

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42.53 mi away

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
San Joaquin Lab Services (Preferred)

130 N Wilson Way,

Stockton, CA 95205

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45.14 mi away

Monday: 8:30 am-5:00 pm
Tuesday: 8:30 am-5:00 pm
Wednesday: 8:30 am-5:00 pm
Thursday: 8:30 am-5:00 pm
Friday: 8:30 am-5:00 pm
Saturday: Closed
Sunday: Closed
Intercept Inc - Stockton (Preferred)

225 E Channel St,

Ste A

Stockton, CA 95202

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45.52 mi away

Monday: 8:00 am-3:00 pm
Tuesday: 8:00 am-3:00 pm
Wednesday: 8:00 am-3:00 pm
Thursday: 8:00 am-3:00 pm
Friday: 8:00 am-3:00 pm
Saturday: Closed
Sunday: Closed
DOT Lab Services (Preferred)

1503 Saint Marks Plz,

Ste D3

Stockton, CA 95207

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48.55 mi away

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 Stockton (Preferred)

1530 E Hammer Ln,

Stockton, CA 95210

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49.34 mi away

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
Trinity UC Occ-Stockton (Preferred)

10200 Trinity Pkwy,

Ste 202

Stockton, CA 95219

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53.3 mi away

Monday: 11:00 am-1:00 pm
Tuesday: 11:00 am-1:00 pm
Wednesday: 11:00 am-1:00 pm
Thursday: 11:00 am-1:00 pm
Friday: 11:00 am-1:00 pm
Saturday: Closed
Sunday: Closed
Adventist Hlth Lodi Mem - Occ Hlth (Preferred)

800 S Lower Sacramento Rd,

Lodi, CA 95242

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55.76 mi away

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: Closed
Sunday: Closed
ARCpoint Labs of Downtown San Jose (Preferred)

25 N 14Th St,

Ste 160

San Jose, CA 95112

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58.69 mi away

Monday: 8:00 am-3:00 pm
Tuesday: 8:00 am-3:00 pm
Wednesday: 8:00 am-3:00 pm
Thursday: 8:00 am-3:00 pm
Friday: 8:00 am-3:00 pm
Saturday: Closed
Sunday: Closed
Carbon Health - Market Park (Preferred)

1411 Berryessa Rd,

Ste 30

San Jose, CA 95133

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58.76 mi away

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: 9:00 am-7:00 pm
Sunday: 9:00 am-7:00 pm
Carbon Health - Almaden Ranch (Preferred)

5120 Cherry Ave,

Ste 20

San Jose, CA 95118

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59.38 mi away

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: 9:00 am-7:00 pm
Sunday: 9:00 am-7:00 pm
No Drugs Inc - San Jose (Preferred)

3162 Newberry Dr,

Ste 60

San Jose, CA 95118

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59.48 mi away

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: Closed
Sunday: Closed
Quest Diagnostics - Oakhurst Victoria

48677 Victoria Ln,

Oakhurst, CA 93644

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59.54 mi away

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
DNA & Drug Screening Services (Preferred)

242 Meridian Ave Ste C,

San Jose, CA 95126

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60.69 mi away

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
No Drugs Inc - Fremont (Preferred)

3225 Seldon Ct,

Fremont, CA 94539

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62.35 mi away

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: Closed
Sunday: Closed
Carbon Health - Antioch (Preferred)

5829 Lone Tree Way,

Ste D110

Antioch, CA 94531

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62.98 mi away

Monday: 9:00 am-2:00 pm
Tuesday: 9:00 am-2:00 pm
Wednesday: 9:00 am-2:00 pm
Thursday: 9:00 am-2:00 pm
Friday: 9:00 am-2:00 pm
Saturday: Closed
Sunday: Closed
Carbon Health - Santa Clara (Preferred)

2712 Augustine Dr,

Ste 120

Santa Clara, CA 95054

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63.63 mi away

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: 9:00 am-7:00 pm
Sunday: 9:00 am-7:00 pm
The Driver Services (Preferred)

4670 N El Capitan Ave,

Ste 105

Fresno, CA 93722

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64.45 mi away

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
ATS Fresno (Preferred)

4337 N Golden State Blvd,

Ste 102

Fresno, CA 93722

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64.79 mi away

Monday: 9:30 am-5:00 pm
Tuesday: 9:30 am-5:00 pm
Wednesday: 9:30 am-5:00 pm
Thursday: 9:30 am-5:00 pm
Friday: 9:30 am-5:00 pm
Saturday: Closed
Sunday: Closed
B&K Elite Alcohol and Drug Testing (Preferred)

12275 Martell Rd,

Ste 11

Jackson, CA 95642

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64.9 mi away

Monday: 6:00 am-6:00 pm
Tuesday: 6:00 am-6:00 pm
Wednesday: 6:00 am-6:00 pm
Thursday: 6:00 am-6:00 pm
Friday: 6:00 am-2:00 pm
Saturday: Closed
Sunday: Closed
ARS Drug Testing & Srvs Inc (Preferred)

4277 W Richert Ave,

Ste 105

Fresno, CA 93722

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64.96 mi away

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: 8:00 am-2:00 pm
Sunday: Closed
Central Valley Drug Testing (Preferred)

5649 N Palm Ave,

Fresno, CA 93704

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66.2 mi away

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
Choices Compliance Solutions-Warner Rd (Preferred)

1095 E Warner Ave,

Ste 103

Fresno, CA 93710

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67.13 mi away

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: 9:00 am-2:30 pm
Saturday: Closed
Sunday: Closed
Choices Compliance Solutions (Preferred)

1095 E Warner Ave,

Ste 103

Fresno, CA 93710

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67.14 mi away

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
ARCpoint Labs of Salinas (Preferred)

635 Sanborn Pl,

Ste 24

Salinas, CA 93901

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69.3 mi away

Monday: 8:00 am-3:00 pm
Tuesday: 8:00 am-3:00 pm
Wednesday: 8:00 am-3:00 pm
Thursday: 8:00 am-3:00 pm
Friday: 8:00 am-3:00 pm
Saturday: Closed
Sunday: Closed
Fastest Labs of Salinas (Preferred)

601 E Romie Ln,

Ste 6

Salinas, CA 93901

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70.16 mi away

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
Carbon Health - Mountain View (Preferred)

2580 W El Camino Real,

Ste 6

Mountain View, CA 94040

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70.85 mi away

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
CheckPoint OTC (Preferred)

24326 MISSION BLVD,

STE 3

HAYWARD, CA 94544

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70.88 mi away

Monday: 9:00 am-11:30 am , 1:00 pm-4:00 pm
Tuesday: 9:00 am-11:30 am , 1:00 pm-4:00 pm
Wednesday: 9:00 am-11:30 am , 1:00 pm-4:00 pm
Thursday: 9:00 am-11:30 am , 1:00 pm-4:00 pm
Friday: 9:00 am-11:30 am , 1:00 pm-4:00 pm
Saturday: Closed
Sunday: Closed
All Valley Compliance (Preferred)

744 P St,

Ste 313

Fresno, CA 93721

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71.1 mi away

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
Carbon Health - Concord (Preferred)

5434 Ygnacio Valley Rd,

Ste 250

Concord, CA 94521

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72.37 mi away

Monday: 10:00 am-3:00 pm
Tuesday: 10:00 am-3:00 pm
Wednesday: 10:00 am-3:00 pm
Thursday: 10:00 am-3:00 pm
Friday: 10:00 am-3:00 pm
Saturday: Closed
Sunday: Closed
Liberty Drug Testing Services Inc (Preferred)

2559 S East Ave,

Ste E

Fresno, CA 93706

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72.76 mi away

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

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