Skip to main content
Quest Diagnostics Home
What can we help you find?

Making a difference every single day

2,250+

convenient locations across the United States

50 million

tests performed each year for patients of all ages

3,500+

lab tests available to help you find answers
Discover Quanum Healthcare IT Solutions

Optimize business and clinical outcomes

Helping healthcare organizations improve the efficiency of care delivery with technology that connects data to decision-making in tangible, value-creating ways.
Practice Solutions Business Solutions
doctor standing in circle
Lab Management

Learn about solutions for lab excellence

Help your system deliver the benefits of diagnostic excellence every day.
Explore solutions
Physicians using Quest’s clinical testing services

The Latest From Quest

Article  
5 ways genetic counselors are evolving during COVID-19
Publication  
The Opioid Epidemic Within the COVID 19 Pandemic Drug
Publication  
Shorter Drug Testing Intervals Are Associated With Improved Drug Misuse
Publication  
Return to Work Managing Employee Population Health During the
Webinar  
Drug Monitoring Webinar: Presumptive vs Definitive Drug Testing: What Are We Missing?
Video  
Powering affordable care with clinical excellence
Article  
Helping employees manage their health during the pandemic
Article  
Decisions, decisions. Noninvasive prenatal testing OR maternal serum screening OR both OR neither?
Webinar  
Back to Business: 5 Strategies to Build On
Video  
Powering affordable care with clinical excellence
Publication  
A Simple Algorithm for Return to Workplace Employer Antibody Testing
Publication  
An omics perspective on drug target discovery platforms
Article  
Decisions, decisions. Noninvasive prenatal testing OR maternal serum screening OR both OR neither?
Article  
5 ways genetic counselors are evolving during COVID-19
Article  
Alzheimer’s Awareness Month
Article  
Mini genetic mystery: hereditary or tumor BRCA2 result? 3 clues to help decipher

The Quest Diagnostics difference

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

About us

Make or change an appointment

It's easy to schedule or reschedule lab tests for the time and place that's most convenient for you.

Book now

Close and convenient

With more than 2,250 locations, there is a Quest Patient Service Center near you.

Find a location