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Contact us

If you are a patient or medical professional experiencing a problem of any kind, email us at Please include the patient's full name, date of birth, invoice and/or barcode number for faster service.

Please be aware that Counsyl cannot guarantee the confidentiality or security of any information you send to us over the Internet when using e-mail. If you would like to discuss personal information, please call Counsyl at 1-888-268-6795

Getting in touch

Counsyl, Inc.
180 Kimball Way
South San Francisco, CA 94080

(888)-COUNSYL (1-888-268-6795)
General Inquiry

  • Lab Directors
  • Peter Kang, M.D., M.S., FCAP
  • Rebecca Mar-Heyming, Ph.D., DABMG

Want to get in touch for anything else? Drop us a line at


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