Purpose, strategy, and culture comprise the Quest way.


Working together to create a healthier world, one life at a time.

With Quest Diagnostics, members receive unlimited clinical lab testing services throughout a national network with ZERO out-of-pocket expense.

Quest is the world’s leading provider of diagnostic information services, committed to uncovering important insights about your health.

They are dedicated to providing actionable results that empower you with the information you need to make your healthcare decisions count through:

  • Discovering new ways to screen for, prevent, diagnose, and monitor disease.

  • Making it faster and easier for patients, doctors, and hospitals to access lab tests and data when they need it.

  • Ensuring patients obtain the services and care they need when they need it.

  • Solving health inequities and working collaboratively to make communities healthier.

More than 2,250+ U.S. locations

We offer broad access to clinical testing services through our national network of laboratories in most major metropolitan areas as well as more than 2,250 patient locations.

Wide range of tests available

Testing in a variety of areas:

  • Allergy and asthma

  • Cancer

  • Chronic disease

  • Digestive health

  • Heart health

  • Infectious disease

  • Neurological disease

  • Men's and Women’s health

Our focus is on your safety

We take patient safety seriously! Our safety precautions help ensure your confidence and comfort while visiting our Patient Service Centers to get the testing you need.

Our commitment to quality.

Every year, Quest serves 1 in 3 adult Americans and half the physicians and hospitals in the US, and our nearly 50,000 employees understand that, in the right hands and with the right context, our diagnostic insights can inspire actions that transform lives.

Customer first

Every decision we make starts with a patient in mind. The quality of our work is vital because the answers we deliver are a matter of life.

Care

We are in the healthcare business, with care at the core of everything we do. We show each patient they matter by treating them with empathy, integrity, and respect.

Collaboration

We work as a team, internally across departments and externally throughout the healthcare ecosystem and in the communities where we live and work.

Continuous improvement

Delivering superior quality requires intention and innovation. That is why we are committed to being better today than yesterday.

Curiosity

To do our jobs, we must be relentlessly curious, because that is what it takes to move healthcare forward.

We aim to help people make the best decisions to improve health by providing high-quality and affordable diagnostic testing insights and services using our scale and extensive reach. Some exclusions apply. Click here for the Exclusions List.

View Quest locations →

Have questions?

Contact us at 866-549-4199 or email membership@ovation-direct.com.