Skip to main content

Weather alert

Due to winter storm Hernando, our Patient Service Centers in affected areas may be closed. We ask that patients please double check your appointment status to ensure your designated Patient Service Center is operational. For site-specific information, please use Find a location and enter your zip code.

Hide
Quest Diagnostics

What can we help you find?

Making a difference every single day

2,000+

convenient locations across the United States

200+ million

tests performed each year for patients of all ages

3,500+

lab tests available to help you find answers

INTRODUCING THE ELITE HEALTH PROFILE

Extensive insights. One single, convenient test panel.

Take your health insights to a whole new level with the Elite Health Profile at questhealth.com — no doctor visit required for purchase. Measure 85+ health indicators and uncover actionable insights into your heart, organ health, hormones, metabolism, inflammation, and so much more.
Shop now
Couple running on a beach

FOR ALL YOUR REASONS TODAY AND ALL YOUR TOMORROWS

Keep your lab results in one place with MyQuest®

Having all your lab results in one place makes it easy to discover important patterns and take steps with your doctor to help transform your health—and your future. 
Learn more
2 men hiking looking at their phone

The Latest From Quest

The Quest Diagnostics difference

Bringing together quality, speed, and technology to power advanced, affordable diagnostics for all. No trade-offs required.

About us

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. © 2026 Quest Diagnostics Incorporated. All rights reserved. Image content features models and is intended for illustrative purposes only.