InSource Diagnostics Employee Directory
Hospital & Health CareCalifornia, United States51-200 Employees
InSource Diagnostics is a medical laboratory based in Monrovia, California, that specializes in prescription drug testing and genetic testing. Its services support physicians who treat chronic pain and depression by providing medication monitoring, advanced genetic testing, risk management consultation, and ancillary services such as billing and ongoing client support. Positioned within the hospitals and health care sector, the company helps clinicians practice safe and informed medicine through tests that verify patient information and monitor high‑risk medication use. The business serves medical professionals and their patients, offering tools to enhance treatment safety and accuracy. A notable development in its recent history is the introduction of ToxLok, a genetic verification feature for urine drug testing launched in 2017, alongside collaborative activities such as a community blood drive partnership announced in 2017. The company operates from its Monrovia location and is part of the broader laboratory services landscape serving diagnostic and monitoring needs.