Choose a testing location
Have a Question?
Call 1-800-960-1080 or
email Client Services
Faxing a Prescription?
The KSL Diagnostics fax number is (716) 559-1582
Comprehensive COVID-19 Testing Options
What's your reason for testing today?
A world-class reference laboratory expertly built to exceed your expectations.
KSL Diagnostics is a national reference laboratory headquartered outside of Buffalo, New York. Our focus is on collaborations with pathologists and clinicians to ensure the most relevant testing is provided to meet patient care. It is our goal to work through a consultative approach to manage the patient testing options available to physicians with our comprehensive testing menu. Our staff of highly qualified clinical professionals has over 75 years of combined clinical service, state of the art facilities and key strategic partnerships, allows KSL Diagnostics to engage in precision medicine driving improved patient outcomes.
To guide our company KSL has assembled a world-class leadership team to spearhead our laboratory services organization. Our team members are industry experts, and together, they are committed to building a solutions-driven company focused on quality and superior customer service. Our three guiding principles are Excellence, Innovation and Growth in order to meet and exceed our customer’s expectations.