Crestar Labs is an accredited high-complexity clinical reference laboratory concentrating on esoteric toxicology and genetic analysis. We provide services to physician offices, substance abuse clinics, mental health facilities, rehabilitation programs, and much more. Our goal is to offer the provider tools for improving patient care and maximizing cost savings. We realize you have many options for laboratory services. At Crestar, our main focus is the quality of our service. This means that our diagnostic tests are supported through rigorous validation standards, our staff is talented and resourceful, our reports are issued within 48 hours of sample receipt, and our experts are readily available for report interpretation or consultation. We stand by our results because we know you depend on them.