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

Contact Us

We are committed to providing answers, every step of the way.

Call or email us

Phone: (301) 519-2100, option 3
Fax: (201) 421-2010
Toll Free: (888) 729-1206, option 3
Email: [email protected]
Monday to Friday 8 am - 8 pm Eastern

LOCATIONS

HQ
333 Ludlow St
North Tower, 8th floor
Stamford, CT 06902

Lab
207 Perry Parkway
Gaithersburg, MD 20877

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