18322 Clay Rd,
Houston, TX 77084
Get Directions
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.
Looking for a facility or operation that is not a lab testing location?
US Facilities & Operations International Facilities & Operations
List
Map
0.95 mi away
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 - Fry Road
952 S Fry Rd,
Katy, TX 77450
Get Directions4.9 mi away
Monday:
6:30 am-5:00 pm
Tuesday:
6:30 am-5:00 pm
Wednesday:
6:30 am-5:00 pm
Thursday:
6:30 am-5:00 pm
Friday:
6:30 am-5:00 pm
Saturday:
8:00 am-12:00 pm
Sunday:
Closed
MRZ Medical - MRZ Medical
21386 Provincial Blvd,
Katy, TX 77450
Get Directions5.49 mi away
Monday:
8:00 am-2:00 pm
Tuesday:
8:00 am-2:00 pm
Wednesday:
8:00 am-2:00 pm
Thursday:
8:00 am-2:00 pm
Friday:
8:00 am-2:00 pm
Saturday:
Closed
Sunday:
Closed
5.94 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
6.1 mi away
Monday:
8:00 am-5:00 pm
Tuesday:
7:30 am-5:00 pm
Wednesday:
8:00 am-5:00 pm
Thursday:
7:30 am-5:00 pm
Friday:
8:00 am-5:00 pm
Saturday:
Closed
Sunday:
Closed
6.56 mi away
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
7.07 mi away
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:
8:00 am-12:00 pm
Sunday:
Closed
Quest Diagnostics - Kingsride
12385 Kingsride Avenue,
Houston, TX 77024
Get Directions7.23 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
7.26 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
7.28 mi away
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:
8:00 am-12:00 pm
Sunday:
Closed
7.28 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:
Closed
Sunday:
Closed
7.56 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
7.97 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:
Closed
Sunday:
Closed
8.06 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-12:00 pm
Sunday:
Closed
8.82 mi away
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
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.
- Site map
- Privacy Notices
- Terms
- Contact us
- Language assistance / non-discrimination
- Asistencia de idiomas / Aviso de no discriminación
- 語言協助 / 不歧視通知
- Accessibility
-
Your Privacy Choices
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.