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In-home sample collection may be available in your area for purchase through Quest Mobile™

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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Rudiel Associates-APPS (Preferred)

3421 W Us Highway 83,

Ste 1

Mcallen, TX 78501

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1.26 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
Rio Plex Safety Council (Preferred)

110 S Col Rowe Blvd,

Mcallen, TX 78501

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1.52 mi away

Monday: 7:00 am-12:00 pm
Tuesday: 7:00 am-12:00 pm
Wednesday: 7:00 am-12:00 pm
Thursday: 7:00 am-12:00 pm
Friday: 7:00 am-12:00 pm
Saturday: Closed
Sunday: Closed
CareNow- McAllen (Preferred)

2901 W Nolana Ave,

Ste 10

Mcallen, TX 78504

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1.64 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-7:00 pm
Sunday: 8:00 am-5:00 pm
Pro Lab (Preferred)

4313 N 10TH ST,

STE B

Mcallen, TX 78504

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1.85 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: 8:00 am-12:00 pm
Sunday: Closed
Industrial Health Works (Preferred)

801 E Nolana Ave,

Ste 6

Mcallen, TX 78504

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2.33 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
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2.77 mi away

Monday: 8:00 am-5:30 pm
Tuesday: 8:00 am-5:30 pm
Wednesday: 8:00 am-5:30 pm
Thursday: 8:00 am-5:30 pm
Friday: 8:00 am-5:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - McAllen

1201 E Ridge Rd,

Ste A

McAllen, TX 78503

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2.86 mi away

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: 8:00 am-12:00 pm
Sunday: Closed
CareNow- San Juan (Preferred)

920 W Interstate 2,

Ste E

San Juan, TX 78589

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4.09 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-7:00 pm
Sunday: 8:00 am-5:00 pm
CareNow- Edinburg (Preferred)

293 E Trenton Rd,

Edinburg, TX 78539

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4.83 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-7:00 pm
Sunday: 8:00 am-5:00 pm
Logasa Drug Screening LLC (Preferred)

5416 S Expressway 281,

Edinburg, TX 78542

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6.34 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
DTM (Preferred)

723 E University Dr,

Edinburg, TX 78539

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7.26 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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13.59 mi away

Monday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Tuesday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Wednesday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Thursday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Friday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Saturday: Closed
Sunday: Closed
DTM - Weslaco (Preferred)

111 W Business 83,

Ste A

Weslaco, TX 78596

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13.78 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-12:00 pm
Saturday: Closed
Sunday: Closed
New Choice Drug Testing Svcs (Preferred)

417 Gray Lane Ave,

Ste B

Weslaco, TX 78596

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14.18 mi away

Monday: 7:30 am-12:00 pm , 1:00 pm-5:00 pm
Tuesday: 7:30 am-12:00 pm , 1:00 pm-5:00 pm
Wednesday: 7:30 am-12:00 pm , 1:00 pm-5:00 pm
Thursday: 7:30 am-12:00 pm , 1:00 pm-5:00 pm
Friday: 7:30 am-12:00 pm , 1:00 pm-5:00 pm
Saturday: 8:00 am-12:00 pm
Sunday: Closed
iCheckU Drug & Alcohol Testing Svc (Preferred)

624 N Tio Ave,

Ste B

Weslaco, TX 78596

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14.44 mi away

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: Closed
Sunday: Closed
MedCare Occupational Health (Preferred)

31047 State Highway 100,

Los Fresnos, TX 78566

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39.22 mi away

Monday: 8:00 am-7:30 pm
Tuesday: 8:00 am-7:30 pm
Wednesday: 8:00 am-7:30 pm
Thursday: 8:00 am-7:30 pm
Friday: 8:00 am-7:30 pm
Saturday: 8:00 am-5:00 pm
Sunday: 8:00 am-12:00 pm
TX Alc & Drug Testing Srv (Preferred)

2031 E Price Rd,

Ste C

Brownsville, TX 78521

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44.28 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
CareNow- Boca Chica (Preferred)

2114 Boca Chica Blvd,

Brownsville, TX 78521

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44.75 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-7:00 pm
Sunday: 8:00 am-5:00 pm
Occupational Express Plus LLC (Preferred)

133 E. Price Rd,

Brownsville, TX 78521

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45.43 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

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Our safety precautions help ensure your confidence and comfort while visiting our Patient Service Centers to get the testing you need, today and every day.

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