Skip to main content

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

Hide
Quest Diagnostics

Location search

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.

Search for a lab testing location to schedule an appointment

Required

Search

Looking for a facility or operation that is not a lab testing location?

US Facilities & Operations International Facilities & Operations

List

Quest Diagnostics - Denton

2817 S Mayhill Rd,

Suite 130

Denton, TX 76208

Get Directions
ds-icon--pin Created with Sketch.

25.28 mi away

Schedule Appointment 940-384-1807
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
Mercy Hospital-Marietta - Mercy Hospital-Marietta

300 Wanda Street,

Suite A

Marietta, OK 73448

Get Directions
ds-icon--pin Created with Sketch.

30.72 mi away

580-276-3347
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 - Inside Prosper Walmart Supercenter

500 Richland Blvd,

Prosper, TX 75078

Get Directions
ds-icon--pin Created with Sketch.

32.23 mi away

Schedule Appointment 972-346-1086
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: 7:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Flowermound

4001 Long Prairie Road,

Suite 130

Flowermound, TX 75028

Get Directions
ds-icon--pin Created with Sketch.

34.33 mi away

Schedule Appointment 972-355-4059
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-12:00 pm
Sunday: Closed
Quest Diagnostics - Inside Flower Mound Tom Thumb Store - Employer Drug Testing Not Offered

745 Cross Timbers Rd,

Flower Mound, TX 75028

Get Directions
ds-icon--pin Created with Sketch.

34.82 mi away

Schedule Appointment 214-285-1353
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
Quest Diagnostics - Frisco - Employer Drug Testing Not Offered

5575 Warren Pkwy,

Prof. Bldg I, Baylor Medical Center - Ste 303

Frisco, TX 75034

Get Directions
ds-icon--pin Created with Sketch.

36.28 mi away

Schedule Appointment 214-618-6470
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
Quest Diagnostics - Inside Sherman Walmart Store

401 E Us Highway 82,

Sherman, TX 75092

Get Directions
ds-icon--pin Created with Sketch.

36.74 mi away

Schedule Appointment 903-813-5625
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: 7:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Carrollton

4333 North Josey Lane Plaza Ii,

Suite 105

Carrollton, TX 75010

Get Directions
ds-icon--pin Created with Sketch.

39.19 mi away

Schedule Appointment 972-939-8001
Monday: 7:00 am-4:30 pm
Tuesday: 7:00 am-4:30 pm
Wednesday: 7:00 am-4:30 pm
Thursday: 7:00 am-4:30 pm
Friday: 7:00 am-4:30 pm
Saturday: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Presbyterian Plano

3600 Communications Pkwy,

Ste 647

Plano, TX 75093

Get Directions
ds-icon--pin Created with Sketch.

39.59 mi away

Schedule Appointment 972-378-3208
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 - Inside Southlake Tom Thumb Store - Employer Drug Testing Not Offered

100 W Southlake Blvd,

Ste 200

Southlake, TX 76092

Get Directions
ds-icon--pin Created with Sketch.

39.81 mi away

Schedule Appointment 682-277-5793
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
Quest Diagnostics - Inside Keller Tom Thumb Store - Employer Drug Testing Not Offered

1000 Keller Pkwy,

Keller, TX 76248

Get Directions
ds-icon--pin Created with Sketch.

40.12 mi away

Schedule Appointment 817-379-9334
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
Quest Diagnostics - Inside Coppell Tom Thumb Store - Employer Drug Testing Not Offered

106 N Denton Tap Rd,

Coppell, TX 75019

Get Directions
ds-icon--pin Created with Sketch.

40.25 mi away

Schedule Appointment 972-304-1610
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
Quest Diagnostics - Inside Plano Tom Thumb Store - Employer Drug Testing Not Offered

3945 Legacy Dr,

Plano, TX 75023

Get Directions
ds-icon--pin Created with Sketch.

40.35 mi away

Schedule Appointment 214-227-1372
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 - Inside Grapevine Tom Thumb Store - Employer Drug Testing Not Offered

302 S Park Blvd,

Grapevine, TX 76051

Get Directions
ds-icon--pin Created with Sketch.

40.67 mi away

Schedule Appointment 682-277-5953
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
Quest Diagnostics - Keller

3529 Heritage Trace Parkway,

Suite 133

Keller, TX 76244

Get Directions
ds-icon--pin Created with Sketch.

41.35 mi away

Schedule Appointment 817-741-8200
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
Quest Diagnostics - McKinney

4510 Medical Center Dr,

Ste 310

McKinney, TX 75069

Get Directions
ds-icon--pin Created with Sketch.

41.52 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
Quest Diagnostics - Inside Allen Walmart - Employer Drug Testing Not Offered

730 W Exchange Pkwy,

Allen, TX 75013

Get Directions
ds-icon--pin Created with Sketch.

41.8 mi away

Schedule Appointment 972-908-9557
Monday: 7:00 am-4:30 pm
Tuesday: 7:00 am-4:30 pm
Wednesday: 7:00 am-4:30 pm
Thursday: 7:00 am-4:30 pm
Friday: 7:00 am-4:30 pm
Saturday: 7:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Inside Allen Tom Thumb Store - Employer Drug Testing Not Offered

900 W Mcdermott Dr,

Allen, TX 75013

Get Directions
ds-icon--pin Created with Sketch.

42.12 mi away

Schedule Appointment 972-737-3309
Monday: 8:00 am-12:30 pm , 1:30 pm-5:00 pm
Tuesday: 8:00 am-12:30 pm , 1:30 pm-5:00 pm
Wednesday: 8:00 am-12:30 pm , 1:30 pm-5:00 pm
Thursday: 8:00 am-12:30 pm , 1:30 pm-5:00 pm
Friday: 8:00 am-12:30 pm , 1:30 pm-5:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Plano Medical Pavillion

3801 W 15Th St,

Ste 100, Bldg A

Plano, TX 75075

Get Directions
ds-icon--pin Created with Sketch.

43.35 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
Quest Diagnostics - Fossil Creek

7630 N Beach St,

Suite 156

Fort Worth, TX 76137

Get Directions
ds-icon--pin Created with Sketch.

43.75 mi away

Schedule Appointment 817-656-5997
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 - Azle

124 Industrial Ave,

Azle, TX 76020

Get Directions
ds-icon--pin Created with Sketch.

44.84 mi away

Schedule Appointment 817-444-5001
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
Quest Diagnostics - Inside Addison Tom Thumb Store - Employer Drug Testing Not Offered

14280 Marsh Ln,

Addison, TX 75001

Get Directions
ds-icon--pin Created with Sketch.

45.39 mi away

Schedule Appointment 972-449-0120
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
Diagnostic Laboratory of Oklahoma - Ardmore

107 N Commerce St,

Ardmore, OK 73401

Get Directions
ds-icon--pin Created with Sketch.

46.53 mi away

Schedule Appointment 580-223-2918
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-3:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Inside Richardson Tom Thumb Store - Employer Drug Testing Not Offered

819 W Arapaho Rd,

Ste 39

Richardson, TX 75080

Get Directions
ds-icon--pin Created with Sketch.

47.03 mi away

Schedule Appointment 972-907-1122
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
Mercy - Commerce St Clinic Employer Drug Testing Not Offered

1020 N Commerce St,

Ardmore, OK 73401

Get Directions
ds-icon--pin Created with Sketch.

47.06 mi away

Schedule Appointment 580-798-6464
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
Mercy Hospital-Ardmore - Mercy Hospital-Ardmore

1011 14Th Ave Nw,

Suite A

Ardmore, OK 73401

Get Directions
ds-icon--pin Created with Sketch.

47.31 mi away

580-223-5400
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 - Bedford Hospital Parkway

1615 Hospital Pkwy,

Suite 208

Bedford, TX 76022

Get Directions
ds-icon--pin Created with Sketch.

47.37 mi away

Schedule Appointment 817-684-5243
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 - Lake Worth

4625 Boat Club Rd,

Lake Worth, TX 76135

Get Directions
ds-icon--pin Created with Sketch.

47.43 mi away

Schedule Appointment 817-238-9607
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 - Irving

3501 N Macarthur Blvd,

Ste 420, Bldg 4

Irving, TX 75062

Get Directions
ds-icon--pin Created with Sketch.

48.47 mi away

Schedule Appointment 972-258-0601
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
Mercy Hospital-Healdton - Mercy Hospital-Healdton

2462 Hospital Road,

Healdton, OK 73438

Get Directions
ds-icon--pin Created with Sketch.

49.29 mi away

580-229-0701
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 - Murphy

140 East F. M. 544,

Suite 80

Murphy, TX 75094

Get Directions
ds-icon--pin Created with Sketch.

49.36 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
Quest Diagnostics - Forest Lane

11613 N Central Expwy,

Suite 120

Dallas, TX 75243

Get Directions
ds-icon--pin Created with Sketch.

49.48 mi away

Schedule Appointment 214-750-9477
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
Quest Diagnostics - Inside Garland Tom Thumb Store - Employer Drug Testing Not Offered

2645 Arapaho,

Garland, TX 75044

Get Directions
ds-icon--pin Created with Sketch.

49.8 mi away

Schedule Appointment 469-520-0540
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

Our focus on your safety

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.

Learn More

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.