New! GeneDx now accepts cheek swab (buccal) sample collection for all patients receiving genome sequencing. Learn more.

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Customer service is available Monday to Friday 8am – 8pm ET

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Domestic: (888) 729-1206
International: (301) 519-2100
Fax: (201) 421-2010

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Email: support@genedx.com

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Email: billing@genedx.com
Phone: (844) 241-1233, option 2
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Headquarters

333 Ludlow St
North Tower, 6th floor
Stamford, CT 06902

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Lab

207 Perry Parkway
Gaithersburg, MD 20877