Update: Added official statements from Quest Diagnostics and AMCA regarding the breach at the end of the article. Quest Diagnostics Incorporated, a Fortune 500 diagnostic services provider, says that ...

Quest Diagnostics, one of the world’s largest blood testing companies, has reported that a cybersecurity breach at its debt collection agency may have revealed the personal and medical information of ...

UnitedHealth Group’s revenue cycle management arm, Optum, has struck a 10-year deal with lab giant Quest Diagnostics, reports Wall Street Journal. Under terms of the contract, Optum will take over ...

LabCorp says the personal, financial and medical information of 7.7 million of its customers may have been affected by the same security breach that impacted rival clinical laboratory network Quest ...

Big quote: "Between August 1, 2018 and March 30, 2019 an unauthorized user had access to AMCA's system that contained information that AMCA had received from various entities, including Quest ...

UnitedHealth Group Inc.'s Optum health-services arm has struck a deal to oversee billing processes for lab giant Quest Diagnostics Inc., substantially expanding its growing business of handling such ...

Quest Diagnostics charged Ro Dobkin an extra $353 for services. Can she get it back or is it lost forever? Q: I received two bills from Quest Diagnostics for tests that my insurance denied. I paid the ...