The Genetic Diagnostic Laboratory

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The laboratory will be CLOSED on the following holidays (We will not be open to receive samples):

January 21, 2019- MLK Jr. Day (Monday)

If blood samples are drawn during this time, please refrigerate and send once the lab reopens. Thank you!

GDL's email address has been changed to

As of July 1st 2017, the laboratory will be updating variant annotations to be consistent with HGVS notation. Click here for more information.

The Genetic Diagnostic Laboratory is a non–profit laboratory at the University of Pennsylvania. Established in 1994, the Genetic Diagnostic Laboratory has had the pleasure to serve patients, physicians, and other members of the medical and research community in many states in the U.S., as well as in over 24 countries worldwide.

Our mission is to evaluate an individual's DNA to discover a genetic cause for their disease or physical symptoms, provide interpretation of the genetic finding and its association with disease, develop new methods for analyzing genes, and introduce new testing to improve patient care.

The Genetic Diagnostic Laboratory is CLIA certified and has state permits for California and Maryland. The staff of the Genetic Diagnostic Laboratory includes highly trained and experienced laboratory technicians, as well as a genetic counselor, who work continually to provide their services in a timely and professional manner.

Click here for CURRENT prices and CPT codes for 2017-2018


There are no upcoming events.