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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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Quest Diagnostics - League City MH

2555 Gulf Fwy S,

Ste B

League City, TX 77573

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1.26 mi away

Schedule Appointment 281-753-9138
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
Quest Diagnostics - Clear Lake

600 N Kobayashi,

Ste 109

Webster, TX 77598

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3.56 mi away

Schedule Appointment 346-230-2014
Monday: 7:00 am-5:30 pm
Tuesday: 7:00 am-5:30 pm
Wednesday: 7:00 am-5:30 pm
Thursday: 7:00 am-5:30 pm
Friday: 7:00 am-5:30 pm
Saturday: 8:00 am-1:00 pm
Sunday: Closed
Quest Diagnostics - Bay Area

106 W. Bay Area Blvd,

Suite A

Webster, TX 77598

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4.47 mi away

Schedule Appointment 281-332-1038
Monday: 6:30 am-6:00 pm
Tuesday: 6:30 am-6:00 pm
Wednesday: 6:30 am-6:00 pm
Thursday: 6:30 am-6:00 pm
Friday: 6:30 am-6:00 pm
Saturday: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Friendswood - Employer Drug Testing Not Offered

355-A East Parkwood,

Friendswood, TX 77546

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4.64 mi away

Schedule Appointment 281-910-1802
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 - Astoria Blvd MH

11914 Astoria Blvd,

Ste 110

Houston, TX 77089

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8.57 mi away

Schedule Appointment 281-740-8755
Monday: 7:30 am-5:30 pm
Tuesday: 7:30 am-5:30 pm
Wednesday: 7:30 am-5:30 pm
Thursday: 7:30 am-5:30 pm
Friday: 7:30 am-5:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Texas City

7111 Medical Center Drive,

Suite 114

Texas City, TX 77591

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8.83 mi away

Schedule Appointment 409-933-1344
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: Closed
Sunday: Closed
Quest Diagnostics - Highland Meadows

11717 Highland Meadow Dr,

Houston, TX 77089

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8.9 mi away

Schedule Appointment 281-484-3505
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: Closed
Sunday: Closed
Quest Diagnostics - Clear Point - Employer Drug Testing Not Offered

11454 Space Center Blvd,

Ste A

Houston, TX 77059

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9.78 mi away

Schedule Appointment 281-487-2531
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 - Pasadena - Employer Drug Testing Not Offered

4904 Fairmont Pkwy,

Building 1

Pasadena, TX 77505

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11.68 mi away

Schedule Appointment 281-991-1277
Monday: 7:00 am-5:30 pm
Tuesday: 7:00 am-5:30 pm
Wednesday: 7:00 am-5:30 pm
Thursday: 7:00 am-5:30 pm
Friday: 7:00 am-5:30 pm
Saturday: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Inside Pearland Randalls Store - Employer Drug Testing Not Offered

10228 W Broadway,

Pearland, TX 77584

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15.39 mi away

Schedule Appointment 713-340-3171
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 - Pearland MH

10907 Memorial Hermann Dr,

Ste 120

Pearland, TX 77584

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16.0 mi away

Schedule Appointment 346-833-1704
Monday: 7:00 am-5:30 pm
Tuesday: 7:00 am-5:30 pm
Wednesday: 7:00 am-5:30 pm
Thursday: 7:00 am-5:30 pm
Friday: 7:00 am-5:30 pm
Saturday: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - MLK

8610 Martin Luther King Blvd,

Suite B

Houston, TX 77033

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17.12 mi away

Schedule Appointment 713-816-1940
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 - East Freeway

1140 Westmont Dr,

Suite 510

Houston, TX 77015

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20.2 mi away

Schedule Appointment 713-455-0406
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
Outpatient Center Lab Collection Site - At Baytown Methodist

1677A W Baker Rd,

Baytown, TX 77521

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20.41 mi away

281-420-8600
Monday: Vary
Tuesday: Closed
Wednesday: Closed
Thursday: Closed
Friday: Closed
Saturday: Closed
Sunday: Closed
Quest Diagnostics - 7400 Fannin - Employer Drug Testing Not Offered

7400 Fannin Street,

Suite 180

Houston, TX 77054

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21.3 mi away

Schedule Appointment 713-791-1684
Monday: 8:30 am-5:30 pm
Tuesday: 8:30 am-5:30 pm
Wednesday: 8:30 am-5:30 pm
Thursday: 8:30 am-5:30 pm
Friday: 8:30 am-5:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - 6410 Fannin - Employer Drug Testing Not Offered

6410 Fannin Street,

Suite 220

Houston, TX 77030

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22.12 mi away

Schedule Appointment 713-791-9101
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 - Tx Med Ctr 15th Floor MH

6400 Fannin,

Ste 1570

Houston, TX 77030

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22.15 mi away

Schedule Appointment 346-266-8060
Monday: 8:00 am-1:00 pm , 2:00 pm-5:00 pm
Tuesday: 8:00 am-1:00 pm , 2:00 pm-5:00 pm
Wednesday: 8:00 am-1:00 pm , 2:00 pm-5:00 pm
Thursday: 8:00 am-1:00 pm , 2:00 pm-5:00 pm
Friday: 8:00 am-1:00 pm , 2:00 pm-5:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Binz

1200 Binz St,

Ste 115

Houston, TX 77004

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22.24 mi away

Schedule Appointment 713-527-8058
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
Quest Diagnostics - Baytown Plaza

6530 Garth Rd,

Baytown, TX 77521

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22.33 mi away

Schedule Appointment 346-233-0023
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 - Inside W Holcombe Rd Randalls Store - Employer Drug Testing Not Offered

3131 W Holcombe Blvd,

Houston, TX 77025

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22.75 mi away

Schedule Appointment 713-667-7772
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: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Bellaire West Loop MH

6700 W. Loop S,

Ste 320

Bellaire, TX 77401

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24.28 mi away

Schedule Appointment 713-724-7106
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 - MH Convenient Care Center

1431 Studemont St,

Houston, TX 77007

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25.0 mi away

Schedule Appointment 281-740-7989
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

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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.