Oklahoma's premier diagnostic laboratory 

Diagnostic Laboratory of Oklahoma (DLO) is the leading diagnostic lab in Oklahoma, with 50 patient access points while serving more than 3,500 physicians and more than 100 hospitals across the state. DLO's mission is to provide innovative, timely, and quality medical laboratory services to our clients and their patients.


DLO now offers direct access testing for patients

Through a new program called DLO Direct, DLO now provides self-directed testing that gives our customers the ability to order select lab tests without a healthcare provider. For more information and a complete list of available tests, visit DLODirect.com.


DLO named to "Best Places to Work" lists by two organizations

Oklahoma City, Okla. ̶ Diagnostic Laboratory of Oklahoma (DLO) has been named to the 2016 Best Places to Work in Oklahoma program by okc.biz, which identifies and honors the state’s best employers. This is the eleventh consecutive year that DLO has been selected as a finalist for this annual award. DLO was also awarded nationally as a "Best Places to Work in Heathcare" by Modern Healthcare magazine for the third year in a row. read more...


BlueCross BlueShield of OklahomaDLO is a statewide in-network provider for Blue Cross Blue Shield of Oklahoma. See our Insurance List page to see a detailed list of DLO's preferred and in-network health plans. A full list of DLO Patient Service Centers can be found in Locations. For additional information, please visit DLO’s Patient Frequently Asked Questions.