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DNA Diagnostic Laboratory

The DNA Diagnostic Laboratory has joined Johns Hopkins Genomics and is located in a new, state of the art building in the Science + Technology Park at Johns Hopkins.

Please ship all samples to:

Johns Hopkins Genomics - DNA Diagnostic Lab
1812 Ashland Ave
Sample Intake; Room 245

Baltimore, MD 21205

Our phone, fax, and email contacts remain the same. 

When considering molecular genetic testing, there is nothing more important than the clinical laboratory’s  commitment to diagnostic accuracy.  At the Johns Hopkins DNA Diagnostic Laboratory – a non-profit, academic service lab established in 1979 – we fulfill this commitment through insistence on high quality data and comprehensive result interpretation. The highest of standards, where modern medicine was pioneered – that’s what the world has come to expect from Johns Hopkins. 

How to Order Tests and Panels


The Johns Hopkins Genomics DNA Diagnostic Laboratory has a new requisition form! Please note that either patient or alternate consent is now REQUIRED. Our updated requisition form is available on our forms page.

The DNA Diagnostic lab is pleased to announce the addition of hereditiary non-syndromic sensorineural hearing loss testing to our available tests.  For more information on this test please see our test page.