Quest Diagnostics empowers people to take action to improve health outcomes. Derived from the world's largest database of clinical lab results, our diagnostic insights reveal new avenues to identify and treat disease, inspire healthy behaviors and improve health care management. 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. 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. By choosing text, you agree to receive texts/calls from Quest Diagnostics and its affiliates, including by autodialed or prerecorded means, regarding current and future appointments or laboratory orders, your account, services, future marketing and offers at the number you provide. 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. 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. Millions of health plan members have a stronger network. Find out if Quest is in-network for your health plan. You can count on the domain expertise of our team of 650+ medical, scientific, and regulatory thought leaders to help you apply insight to data and make more informed decisions. Quest offers you efficiency in obtaining, sharing, and integrating health information. With our solutions you can confidently access the right information at the right time, so you have all the support you need to take meaningful clinical action. Find a Quest Diagnostics location nearby to complete sample collection for doctor-ordered or self-purchased lab tests.