North American Labs

A physician or genetic counselor must order all laboratory tests. The laboratories have requested that each patient contact their HHT Center Physician, Medical Geneticist or Genetic Counselor.


United States

Ambry Genetics 
15 Argonaut
Aliso Viejo, CA 92656

Tel: 949-900-5500
Toll Free: 866-262-7943
Fax: 949-900-5501
Email: [email protected]


ARUP Laboratories
500 Chipeta Way
Salt Lake City, UT 84108-1221

Contact: Ms. Jamie McDonald, MS, CGC
Tel: 800-242-2787 X3179


Testing provided through Impact Genetics, LabCorp provides testing for patients in U.S.

Contact: Jeanne McKay
Tel: 877-624-9769  (toll-free)
Email: [email protected]


Mayo Medical Laboratories
Shipping Address:  3050 Superior Dr. NW, Rochester, MN 55901

Contact: Kate Kotzer, MS, CGC
Tel: 800-533-1710


University of Pennsylvania
Genetic Diagnostic Laboratory
Department of Genetics
415 Anatomy-Chemistry Building
3620 Hamilton Walk
Philadelphia, PA. 19104-6145

Contact: Jessica Ebrahimzadeh
Tel: 215-573-9161
Fax: 215-573-5940
Email: [email protected]



Impact Genetics
1100 Bennett Road, Unit 4
Bowmanville, Ontario L1C 3K5, Canada

Contact: Jeanne McKay
Tel: 877-624-9769  (toll-free)
Email: [email protected]


Molecular Genetics Laboratory
The Hospital for Sick Children
555 University Ave.
Roy C. Hill Wing Rm. 3-421
Toronto, ON M5G 1X8, Canada

Tel: 416-813-6590
Fax: 416-813-7732