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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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Quality Lab Test (Preferred)

945 Stockton Dr,

Unit 4120

Allen, TX 75013

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2.68 mi away

972-332-8513
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
Know Before You Go Drug & Alc Testing (Preferred)

990 State Hwy 5,

# 107

Fairview, TX 75069

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4.24 mi away

469-352-7560
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-4:00 pm
Saturday: 9:00 am-1:00 pm
Sunday: Closed
Occumed Plus - McKinney (Preferred)

4510 Medical Center Dr,

Ste 108

Mckinney, TX 75069

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4.35 mi away

972-548-5356
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 - McKinney

4510 Medical Center Dr,

Ste 310

McKinney, TX 75069

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4.35 mi away

Schedule Appointment 972-547-0159
Monday: 7:30 am-4:30 pm
Tuesday: 7:30 am-4:30 pm
Wednesday: 7:30 am-4:30 pm
Thursday: 7:30 am-4:30 pm
Friday: 7:30 am-4:30 pm
Saturday: Closed
Sunday: Closed
Texas Health UC - South Custer Rd (Preferred)

7001 S Custer Rd,

Ste 900

Mckinney, TX 75070

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5.79 mi away

469-495-9116
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
Bluestar Diagnostics - Plano (Preferred)

720 E PARK BLVD,

STE 102

PLANO, TX 75074

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5.96 mi away

469-609-6409
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: 8:30 am-12:30 pm
Sunday: Closed
Quest Diagnostics - Murphy

140 East F. M. 544,

Suite 80

Murphy, TX 75094

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6.06 mi away

Schedule Appointment 214-299-6363
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
National Drug Screening, LLC - McKinney (Preferred)

115 E Virginia St,

Ste 202

Mckinney, TX 75069

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7.07 mi away

469-855-1090
Monday: 9:00 am-4:30 pm
Tuesday: 9:00 am-4:30 pm
Wednesday: 9:00 am-4:30 pm
Thursday: 9:00 am-4:30 pm
Friday: 9:00 am-4:30 pm
Saturday: Closed
Sunday: Closed
Texas Health UC - Wylie (Preferred)

499 S Highway 78,

Ste 100

Wylie, TX 75098

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7.74 mi away

469-495-9138
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
Any Lab Test Now - McKinney (Preferred)

1705 W UNIVERSITY DR,

STE 112

MCKINNEY, TX 75069

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8.23 mi away

214-842-8881
Monday: 8:30 am-6:30 pm
Tuesday: 8:30 am-6:30 pm
Wednesday: 8:30 am-6:30 pm
Thursday: 8:30 am-6:30 pm
Friday: 8:30 am-6:30 pm
Saturday: Closed
Sunday: Closed
Texas Health UC - University Dr (Preferred)

3805 W University Dr,

Ste 100

Mckinney, TX 75071

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8.43 mi away

469-495-9102
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
CMUCS-Princeton (Preferred)

670 W Princeton Dr,

Ste 400

Princeton, TX 75407

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8.51 mi away

972-699-5250
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: 8:00 am-6:00 pm
Sunday: 12:00 pm-6:00 pm
Quest Diagnostics - Plano Medical Pavillion

3801 W 15Th St,

Ste 100, Bldg A

Plano, TX 75075

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8.69 mi away

Schedule Appointment 972-612-1887
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: 7:30 am-12:00 pm
Sunday: Closed
Any Lab Test Now - Frisco (Preferred)

3520 Preston Rd,

Ste 113A

Frisco, TX 75034

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9.07 mi away

972-569-8564
Monday: 8:30 am-6:30 pm
Tuesday: 8:30 am-6:30 pm
Wednesday: 8:30 am-6:30 pm
Thursday: 8:30 am-6:30 pm
Friday: 8:30 am-6:30 pm
Saturday: Closed
Sunday: Closed
Texas Health UC - Preston Rd (Preferred)

2855 Preston Rd,

Frisco, TX 75034

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9.13 mi away

469-495-9118
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
Any Lab Test Now - Plano (Preferred)

4701 W Park Blvd,

Ste 206

Plano, TX 75093

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9.51 mi away

972-596-6181
Monday: 8:30 am-6:30 pm
Tuesday: 8:30 am-6:30 pm
Wednesday: 8:30 am-6:30 pm
Thursday: 8:30 am-6:30 pm
Friday: 8:30 am-6:30 pm
Saturday: Closed
Sunday: Closed

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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.