Quest Diagnostics Incorporated

Quest Diagnostics is a large-scale clinical laboratory services provider operating 2,000+ patient service centers across the United States. The company performs over 200 million laboratory tests annually across all patient demographics. Quest offers a comprehensive portfolio of 3,500+ laboratory tests including cardiology markers (Lp(a), ApoB, LDL-C), hematology, biochemistry, genetic testing, prenatal diagnostics (noninvasive prenatal testing, maternal serum screening), and oncology screening. The company serves patients, healthcare professionals, health plans, hospitals, health systems, employers, and life sciences/biopharma organizations. Quest operates significant laboratory automation infrastructure with ongoing modernization efforts and provides IT solutions including Quanum Lab Services Manager for healthcare professionals and healthcare systems. The company recently launched Quest AI Companion, a patient-facing digital tool within MyQuest that provides simplified explanations of lab results. Quest Diagnostics operates a B2B laboratory network model serving as a reference laboratory for hospitals and health systems, providing billing and coding support, and offering population health and workforce health solutions. The organization adheres to clinical laboratory standards and regulatory requirements for laboratory-developed tests.