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When scheduling an appointment online, use your zip code (not city name) for best results. After entering your zip code, a Quest Mobile option will appear if it’s available for purchase in your area. Let’s check

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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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National Drug Screening, LLC (Preferred)

701 Commerce St,

Ste 400-C

Dallas, TX 75202

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0.19 mi away

Monday: 9:00 am-12:00 pm , 1:30 pm-4:30 pm
Tuesday: 9:00 am-12:00 pm , 1:30 pm-4:30 pm
Wednesday: 9:00 am-12:00 pm , 1:30 pm-4:30 pm
Thursday: 9:00 am-12:00 pm , 1:30 pm-4:30 pm
Friday: 9:00 am-12:00 pm , 1:30 pm-4:30 pm
Saturday: Closed
Sunday: Closed
Pavvway Innovations (Preferred)

1910 Pacific Ave,

Ste 12040

Dallas, TX 75201

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0.44 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: 12:00 pm-4:00 pm
Sunday: Closed
Quest Diagnostics - Gaston Wadley

3600 Gaston,

Wadley Tower, Suite 270

Dallas, TX 75246

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1.44 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
Texas Health UC - Oak Lawn Ave (Preferred)

2720 Oak Lawn Ave,

Dallas, TX 75219

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1.81 mi away

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

1625 W Mockingbird Ln,

Ste 303

Dallas, TX 75235

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4.1 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
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4.45 mi away

Monday: 8:30 am-6:00 pm
Tuesday: 8:30 am-6:00 pm
Wednesday: 8:30 am-6:00 pm
Thursday: 8:30 am-6:00 pm
Friday: 8:30 am-6:00 pm
Saturday: Closed
Sunday: Closed
Any Lab Test Now - Lakewood (Preferred)

6333 E Mockingbird Ln,

Ste 121

Dallas, TX 75214

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4.71 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: 9:00 am-1:00 pm
Sunday: Closed
Any Lab Test Now - Dallas (Lovers) (Preferred)

5219 W LOVERS LN,

STE A

DALLAS, TX 75209

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4.97 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: 9:00 am-1:00 pm
Sunday: Closed
AccuScreen Drug & Alc - Dallas (Preferred)

1720 Regal Row,

Ste 238

Dallas, TX 75235

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5.28 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
DOT Medical Drug Testing Svcs (Preferred)

1430 Regal Row,

Ste 300

Dallas, TX 75247

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5.36 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
Test First (Preferred)

6300 Samuell Blvd,

Ste 115

Dallas, TX 75228

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5.7 mi away

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: 9:00 am-1:00 pm
Sunday: Closed
Texas Health UC - Northwest Hwy (Preferred)

6411 E Northwest Hwy,

Ste D-120

Dallas, TX 75231

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6.07 mi away

Monday: 8:00 am-8:00 pm
Tuesday: 8:00 am-8:00 pm
Wednesday: 8:00 am-8:00 pm
Thursday: 8:00 am-8:00 pm
Friday: 8:00 am-8:00 pm
Saturday: 8:00 am-8:00 pm
Sunday: 8:00 am-8:00 pm
DOT Medical Drug Testing Svcs (Preferred)

4801 S Buckner Blvd,

Ste 500

Dallas, TX 75227

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6.41 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 - Casa Linda

1151 N Buckner Blvd,

Ste 202

Dallas, TX 75218

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6.45 mi away

Monday: 7:30 am-12:00 pm , 1:00 pm-4:30 pm
Tuesday: 7:30 am-12:00 pm , 1:00 pm-4:30 pm
Wednesday: 7:30 am-12:00 pm , 1:00 pm-4:30 pm
Thursday: 7:30 am-12:00 pm , 1:00 pm-4:30 pm
Friday: 7:30 am-12:00 pm , 1:00 pm-4:30 pm
Saturday: Closed
Sunday: Closed
Bluestar Diagnostics - White Rock Lake (Preferred)

10611 Garland Rd,

Ste 112

Dallas, TX 75218

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7.44 mi away

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
Alpha Diagnostixs LLC (Preferred)

5801 Marvin D Love Fwy,

Ste 306

Dallas, TX 75237

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7.71 mi away

Monday: 8:00 am-8:00 pm
Tuesday: 8:00 am-8:00 pm
Wednesday: 8:00 am-8:00 pm
Thursday: 8:00 am-8:00 pm
Friday: 8:00 am-8:00 pm
Saturday: Closed
Sunday: 12:00 pm-6:00 pm
Nova Medical Center - Duncanville (Preferred)

814 E CAMP WISDOM RD,

DUNCANVILLE, TX 75116

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8.21 mi away

Monday: 8:30 am-6:00 pm
Tuesday: 8:30 am-6:00 pm
Wednesday: 8:30 am-6:00 pm
Thursday: 8:30 am-6:00 pm
Friday: 8:30 am-6:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Mesquite

3230 I- 30 East,

Suite 101

Mesquite, TX 75150

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8.52 mi away

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: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Forest Lane

11613 N Central Expwy,

Suite 120

Dallas, TX 75243

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8.97 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-1:00 pm
Sunday: Closed
Any Lab Test Now - North Dallas (Preferred)

11930 Preston Rd,

Ste 120

Dallas, TX 75230

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9.03 mi away

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: 9:00 am-1:00 pm
Sunday: Closed
Drug Test First (Preferred)

4343 W Camp Wisdom Rd,

Ste 213

Dallas, TX 75237

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9.35 mi away

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: 9:00 am-1:00 pm
Sunday: Closed
Quest Diagnostics - Irving

3501 N Macarthur Blvd,

Ste 420, Bldg 4

Irving, TX 75062

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9.67 mi away

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: 8:00 am-12:00 pm
Sunday: Closed
Arc Serenity Services (Preferred)

11418 Audelia Rd,

Dallas, TX 75243

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9.71 mi away

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: 10:30 am-5:00 pm
Sunday: Closed
ARCpoint Labs of South Dallas (Preferred)

8067 W Virginia Dr,

Ste 101

Dallas, TX 75237

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9.76 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
Nova Medical Center - Mesquite (Preferred)

1900 Oates Dr Ste 100,

Mesquite, TX 75150

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9.95 mi away

Monday: 8:30 am-6:00 pm
Tuesday: 8:30 am-6:00 pm
Wednesday: 8:30 am-6:00 pm
Thursday: 8:30 am-6:00 pm
Friday: 8:30 am-6:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Charlton Methodist

3430 W Wheatland Rd,

Ste 224

Dallas, TX 75237

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9.97 mi away

Monday: 7:30 am-5:00 pm
Tuesday: 7:30 am-5:00 pm
Wednesday: 7:30 am-5:00 pm
Thursday: 7:30 am-5:00 pm
Friday: 7:30 am-5:00 pm
Saturday: Closed
Sunday: Closed

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