In 1967, Paul A. Brown, M.D., founded what would become Quest to fill a gap; a lack of accessible outpatient testing. Our practice has since built on itself, making us an early pioneer in serving patients nationally.

More than 56 billion patient data points allows us to better understand the nuances of the human body - and better serve more people.

More than 7,100 access points, the most extensive in the U.S., allow us to serve one third of the U.S. population - and half the nation's physicians - each year.

Our industry-leading range is increasingly available without a doctor's referral, and in some cases, without leaving home.