Principle Diagnostics

A Complete Laboratory Provider

Where every sample is a life.

Covid 19

Fight Against COVID-19 Pandemic

Covid 19

Principle Diagnostics

Fight Against COVID-19 Pandemic

Ortho’s Total and IgG Antibody tests with 100% specificity enables health care professionals at Principle Diagnostics to provide more confident patient management decisions to prevent further spread of the disease, and potentially save lives,” said Michael S. Iskra, President, North America Commercial Operations, Ortho Clinical Diagnostics. “This commitment to excellence exhibited by Principle Diagnostics makes us a proud partner alongside them in the long term, sustainable management of this disease.”


About Us

Principle Diagnostics Laboratory is a state of the art laboratory founded in 2015 by an executive team with over 50 years of cumulative experience. PDL specializes in the testing of toxicology and wellness for all clientele. Licensed in over 40 states, we are the bridge connecting the gap of superb operational efficiency and personalized service. PDL tracks the truth in every sample to make sure all health care organizations are able to properly diagnose their patients.

Over the years, with our open line of communication to our client community, we have learned and evolved to incorporate all laboratory disciplines to become a complete laboratory provider. With our focus spearheading our vision, we will become the leader in diagnostic service.


For all general inquiries call 1-484-353-6661 


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We would be happy to discuss your needs in person at our offices or yours:


2550 Brodhead Road, Suite 105

Bethlehem, PA 18020

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