Quest Diagnostics®
Powering affordable care in the Midwest—enjoy greater access to advanced testing at the right place throughout Missouri and Arkansas

With Quest as your local lab, experience the benefits of our innovative, industry-leading test menu, health plan relationships, conveniently located patient-access sites, and cost-effective services—available throughout Missouri and Arkansas.

For many years, we’ve been a part of your local community, and we’re dedicated to powering the insights you need to make more informed healthcare decisions.


At Quest, we believe that when it comes to health, quality shouldn’t be a trade-off, services shouldn’t be a sacrifice, and cost shouldn’t be a barrier. What matters to you, matters to us—that’s why we offer:

Patient Service Centers conveniently located throughout Missouri and Arkansas

Online appointment scheduling and easy-to-access results via MyQuest (register here—it’s fast and free)

3,500 routine and specialized tests for a variety of conditions

Expert clinical support and data analytics for healthcare providers

In-network with 92% of lives nationwide, which means low out-of-pocket costs on your laboratory testing

Our Patient Assistance Program, with tailored solutions for patients based on their individual circumstances. Learn more here

Delivering a healthier future 
Healthcare is changing. See how we’re bringing our national reach, clinical expertise, and advanced testing and services together to drive better care and access for everyone.

Watch the video:
Making healthcare services more accessible and affordable across the Midwest
Our nationwide footprint as an industry-leading laboratory allows us to deliver greater access to testing and services with all the convenience of a local lab. 

5 Rapid response labs

40 Blood draw access centers across MO and AR

More than 50% of all US adults served annually

92% of patients in-network

400+ Quest employees in MO and AR

Highly accurate, industry-leading testing that can help improve outcomes 
Quest Diagnostics delivers unmatched diagnostic strength—3,500 routine and esoteric tests—that help lead to more informed decisions.  

Our comprehensive test menu includes basic and advanced testing solutions across several specialties, including:

Cancer

Neurology

Cardiovascular

Genetics

Metabolic & endocrinology

PDM & toxicology

Anatomic pathology

Women’s reproductive health

Infectious disease & immunology

Quest is dedicated to bringing quality, affordable healthcare to the Midwest. Choose a link below to explore more of what Quest has to offer: 
I am a healthcare provider
I am a patient
As a patient, learn about new resources you now have access to including:

Questions? Call 1.866.MY.QUEST (1.866.697.8378) or visit QuestDiagnostics.com ➜