About Us

Contact Us

Mailing Address: P.O. Box 4217, Hayward, CA 94540
Phone: (510) 582-2100
Fax: (510) 582-1221
Email: contact@hsimail.org

To contact a specific staff member or submit any questions, suggestions or general feedback, please use the form below. We appreciate your comments or concerns, and we will respond to them as soon as possible.

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