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 …

Get the same quality Quest lab tests that doctors use - no doctor visit required for purchase. Quest Diagnostics Patient Service Centers will be closed on Thursday, November 27, 2025 for …

You can even manage test results for your family or those in your care, schedule and receive medication reminders, and schedule appointments at Quest Diagnostics Patient Service Centers.

Visit one of Quest’s 2,200 Patient Service Centers - when it’s convenient for you. With thousands of locations in neighborhoods across the country, you’re never too far from getting the testing …

Understanding your Quest Diagnostics lab test results helps you and your doctor make the best decisions for your health. Take control of your health today.

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 …

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 …

Find a Quest Diagnostics location nearby to complete sample collection for doctor-ordered or self-purchased lab tests.

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 …

Put yourself in control of your health by purchasing lab tests online from Quest without needing to wait for a doctor appointment. You'll get the results sent directly to you with the option to speak …