Contact us

Mainstream Centers, Inc.

350 W. Mauna Loa

Glendora, CA 91740

 Phone: 626-335-8110

Fax: 626-914-1614


Tia Sommers 

Program Director


Other important Contacts

San Gabriel/Pomona Regional Center

761 Corporate Center Drive

Pomona CA 91768




Department of Developmental Services
Office of Human Rights and Advocacy Services
1600 9th Street, Room 240
Sacramento, CA 95814

 (916) 654-1690



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