Our nationwide footprint and extensive partnerships with technology leaders, health plans, and labs translates into advanced testing at the right price for you and your patients.
Dementia Testing
Quest Diagnostics offers one of the most comprehensive testing portfolios for neurological disorders. Explore our Alzheimer's and dementia testing capabilities.
Powering care to help you deliver better outcomes
Quest Diagnostics is more than a lab. We’re an innovative leader in test development with clinical experts, resources, and services to help you meet your patients’ needs. From our groundbreaking response to COVID-19 to our broad and deep menu of 3,500 routine, esoteric and genetic tests, we connect the most advanced solutions with healthcare providers and patients—regardless of where they are or what their health status is.
Our access to industry-leading expertise and substantial investments in operations empowers us to stay ahead of the latest technology to develop highly accurate testing on the most efficient platforms so you can do more for your patients.
Delivering the best healthcare possible shouldn’t be complicated. We help simplify end to end laboratory diagnostic processes with intuitive tools that can help your practice run efficiently, and can help keep your patients actively engaged in their health.
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MAKING A DIFFERENCE
Healthcare is changing, and we’ve evolved to get ahead of it. Together, we can drive better care and access for everyone.
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Quest® is the brand name used for services offered by Quest Diagnostics Incorporated and its affiliated companies. Quest Diagnostics Incorporated and certain affiliates are CLIA-certified laboratories that provide HIPAA-covered services. Other affiliates operated under the Quest® brand, such as Quest Consumer Inc., do not provide HIPAA-covered services.
Quest®, Quest Diagnostics®, any associated logos, and all associated Quest Diagnostics registered or unregistered trademarks are the property of Quest Diagnostics. All third-party marks—® and ™—are the property of their respective owners. © 2025 Quest Diagnostics Incorporated. All rights reserved. Image content features models and is intended for illustrative purposes only.