Leadership Team

Matthew Witmer, Ed.D.

Assistant Superintendent
Educational Services
mwitmer@orangeusd.org

Sulema Holguin

Assistant Superintendent/CBO
Business Services
sholguin@orangeusd.org

Craig Abercrombie

Executive Director
Secondary Education
jabercrombie@orangeusd.org

Meghna Bulsara

Executive Director
Business Services
mbulsara@orangeusd.org 

Elena Rodriguez

Executive Director
Accountability, Equity & Engagement
Elementary Support
erodriguez@orangeusd.org

Heriberto Angel

Executive Director
Student & Community Services
hangel@orangeusd.org

Lisa Green

Executive Director
TK-12 Curriculum & Instruction
lgreen@orangeusd.org

Sue Singh, Ed.D.

Chief Executive Officer
Special Education, SELPA
ssingh@orangeusd.org

Katie Arciniega

Interim Director
Contracts & Purchasing
karciniega@orangeusd.org

Diana Gaeta

Director
Risk Management
dgaeta@orangeusd.org

Kenneth Miller, Ed.D.

Administrative Director
Community Relations & School Connectedness
kenneth.miller@orangeusd.org

Susanna Solis

Director
Human Resources
ssolis@orangeusd.org

Christina Celeste-Russo

Director
Transportation
cceleste@orangeusd.org

Steve Harlin

Director
Maintenance & Operations
sharlin@orangeusd.org

Tam Nguyen

Chief Technology Officer
Information Technology
tam.nguyen@orangeusd.org