Logo - Sierra Social Services Inc. - Developmental Disabilities 

Location & Contact
Thank you for your interest! Please fill out the form below, along with your email and a detailed message, to request more information about our organization. A confirmation will appear after you click "Submit." We look forward to hearing from you.

Phone: Email:
(844) 266-6780


We look forward to hearing from you. Contact us by phone, email, or the form below today!

Please come in and see us at either location in Castro Valley or in

San Jose at 950 South Bascom Ave, Suite 1113, 95128