About Us

Leadership

Leadership, staff, departments and resources

Tibisay Guzmán

Executive Director/CEO

tguzman@arcwestchester.org
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Deborah Mondello

Senior Assistant Executive Director

dmondello@arcwestchester.org

Alla Nirenberg, MD

Medical Director & Board Certified Psychiatrist

anirenberg@arcwestchester.org

Ann-Marie Sabrsula

Director of The Children's School for Early Development

asabrsula@arcwestchester.org

Laurel Ross

Assistant Executive Director, Quality and Corporate Compliance

lross@arcwestchester.org

Soosan Tehrani

Chief Financial Officer

stehrani@arcwestchester.org

Avery Valins

Assistant Executive Director, Day Services

avalins@arcwestchester.org

Myriam Vocke

Director of Human Resources

mvocke@arcwestchester.org
Art by: Robert Corbett
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