Effective January 1, 2007, Laboratory Corporation of America will be the only national in-network laboratory services provider in the United Healthcare network, with Quest Diagnostics no longer holding this designation. 

“LabCorp will participate with other regional and local laboratories to provide a broad national laboratory network,” said Employee Benefits Manager Mike Cavalier. “As long as your physician uses one of the participating in-network laboratories you will not see any change.” 

He stressed that if Quest Diagnostics, or any other laboratory that is not part of United Healthcare’s broad network, is used, the services provided will be considered out-of-network. 

“As such,” he said, “you may incur increased health care costs.” 

A list of UHC participating laboratory locations is available at uhclablocator.com or by calling UHC customer service at 877 259-1391.

I am also including a link to the Lab Corp. Website Locator page to find Lab Corp. facilities near you.  It is my understanding that those on Medicare will not be restricted and can use any lab for services. 

http://www.labcorp.com/psc/index.html