Skip to main content

RML Online

Labcorp is here to serve you

Effective Oct. 1, 2025, rmlonline.com is no longer available. All clients should now use this webpage to access LabWorks, the test directory and online bill pay options.
Provider showing patient results on a tablet

In 2022, Labcorp purchased select assets of Ascension’s outreach laboratory business. As part of the acquisition, Labcorp also manages the health system’s hospital-based laboratories through a long-term agreement to provide staffing, leadership, scientific knowledge, analytics, supply chain services and laboratory support in 10 states including Oklahoma. 

Since the close of the transaction, Labcorp Oklahoma, Inc., a wholly-owned subsidiary of Labcorp, has been operating the former Regional Medical Laboratory (RML) in Tulsa, Oklahoma, acquired as part of the acquisition.

Labcorp and Ascension continue working closely together to respond to provider needs and develop solutions to help meet patient and physician requirements. Please continue to reach out to your Labcorp account representative with any questions or concerns. 

Please find below resources and support to assist with your laboratory needs.

*Please note for client-billed accounts, a single monthly statement itemizing the dates of testing, patient name, tests requested and associated charges will be sent to each client. Client may contact the billing office at 918-744-2164, Monday to Friday from 8:30 a.m. to 4:30 p.m., for assistance with billing statements.