Staff

Philippe Rey, PsyD
Executive Director

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Dr. Philippe Rey first joined Adolescent Counseling Services in 1998 as Caravan House Program Director. After three years at Caravan, he became a member of the executive team as Associate Director and has now been the agency's Executive Director since 2004. Philippe was born and raised in the French-speaking region of Switzerland and came to the United States in 1984 to attend the University of California at San Diego. In 1997 his doctorate in clinical psychology with a concentration in child and family therapy was conferred by Alliant International University in San Diego. Before pursuing graduate studies and a career in psychology, Philippe graduated from business school in Sion, Switzerland. Philippe operates an "Underground Dining" establishment which has served as a cultivation & fundraising vehicle for ACS since 2011.

Kelsey Moon
Adolescent Substance Addiction Treatment Program Director

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KelseyMoon (she/her/hers) has been with ACS for a total of 3 years. She began as a practicum student then returned to supervise for ASAT. She received her Bachelor's Degree in Psychology from University of Washington, and then went on to pursue her PhD in Clinical Psychology from Palo Alto University with a specialized focus in forensic psychology. She has a passion for working with at-risk youth, particularly those struggling with substance use. In her free time, she enjoys travelling, camping, hiking, reading, and spending time with her cat, Khaleesi.

Ariana Chini
Outlet Program Manager

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Ariana Chini (she/they) is a queer, nonbinary Middle Eastern and Muslim professional with over a decade of experience supporting LGBTQ+ youth and communities across higher education, legal, and nonprofit spaces. As the Outlet Program Manager, Ariana brings deep experience in trauma-informed care, program development, community collaboration, and identity-affirming support services. They previously served as the LGBTQ+ Case Manager at the San Mateo County Pride Center, where they provided wraparound services to youth and adults navigating housing, healthcare, and systems of marginalization. Ariana has also managed university-based LGBTQ+ and multicultural centers, including the University of Washington Bothell Diversity Center and Seattle University's Office of Multicultural Affairs. In these roles, they developed intersectional peer mentorship programs, coordinated campus-wide events like Drag Brunch and social justice conferences, and supported LGBTQ+, BIPOC, immigrant, and first-gen students in navigating college life and identity. A Bay Area native and longtime peninsula resident, Ariana is passionate about cultivating safe, joyful, and empowering spaces for LGBTQIA+ youth to thrive. Outside of work, they love playing Dungeons & Dragons, video games, reading queer literature, and spending time with their wife and two cats, Barnacle and Mango.

Adriana Rios
Program Manager at Las Lomitas Elementary School, La Entrada Middle School, & Oxford Day Academy

Andrea Delariyala
Program Coordinator at the Siena Youth Center

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Andrea Delariyala (she/her/they/them) has been with ACS for the past three years. She originally started working with ACS as a trainee and then as an intern in the On-Campus Counseling Program and Community Counseling Program. She currently serves as the Site Coordinator for the On-Campus Counseling Program at Siena Youth Center, in addition to continuing with direct client work through the Community Counseling Program. She is a second generation Mexican and Puerto-Rican American who grew up in the Bay Area and is an Associate Marriage and Family Therapist and Associate Professional Clinical Counselor working towards licensure. After receiving her Bachelor’s in Psychology from UCSC, she spent time working with at-risk youth and their families as a Mental Health Counselor and One-on-One Counselor at Seneca Family of Agencies before returning to school to obtain her Master’s in Psychology from Notre Dame de Namur. She continues to be passionate about serving youth and families and providing access to mental health resources. In her free time, she enjoys spending time with her partner and their pets, going to the movies, listening to the sound of the waves at local beaches, and spending time with friends while playing tabletop RPGs.

Elizabeth Harris
Program Supervisor at Woodside High School

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Elizabeth Harris (she/her) has been with ACS for several years. She initially served as an intern for the Siena Youth Center and ASAT Programs. She then oversaw services at both Las Lomitas Elementary and La Entrada Middle schools. Currently Elizabeth oversees the On-Campus Counseling Program at Woodside High School. She grew up in Nashville, earned a B.S. in Mechanical Engineering from the University of Texas, worked for a global consulting firm, and lived in Argentina for two years. She is a very active volunteer and community leader. She received her M.A. in Counseling Psychology focused on Community Mental Health from the California Institute of Integral Studies in San Francisco. She is passionate about serving and supporting the diverse needs of youth and families in a culturally sensitive manner. In her free time, she enjoys yoga, traveling, playing board games, and spending time in nature and with her family and friends. She has a dog, three cats, and a backyard chicken named Brooklyn.

Taylor Rokala
Outlet Outreach Coordinator

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Taylor Rokala (they/them/theirs) joined Adolescent Counseling Services in 2025 as an Outreach Coordinator for the Outlet team. They grew up in San Mateo and graduated from Occidental College with a B.A. in Critical Theory and Social Justice. Pursuing their passion for advocacy, Taylor has interned at Interfaith Refugee & Immigration Service and Muslim Public Affairs Counsel, in addition to on-campus advocacy through Oxy Sexual Assault Coalition and Students for Justice in Palestine. Taylor enjoys exploring different art mediums, most recently tufting and clothing design.

Jay MacIntosh
Adolescent Substance Addiction Treatment Program Clinician

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Jay is in his second year with ACS and the ASAT program. He holds a BS in Engineering and an MA in Counseling Psychology, both from Santa Clara University. Following a 30-year career in tech, he ventured out into volunteer and nonprofit work, where he discovered his passion for supporting youth (and their families) as they navigate adolescence into adulthood. When not with ACS clients or colleagues, Jay spends his time with family, friends, his dog, and the great outdoors.

Cassy Perera
Director of Philanthropy & Marketing

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Cassy joined ACS' Development Department in 2016. She holds a BA in Social Work from UC Berkeley and has experience working in education, community organizing, & grassroots fundraising. She first discovered a knack for fundraising while working on a children's health insurance campaign in Boise, Idaho and honed her skills later at the American Cancer Society in San Jose. Her favorite part about her job is finding creative ways to communicate the urgency of ACS' work and igniting others' passion for adolescent mental health. In her free time Cassy can be found perfecting Indonesian recipes, playing the banjo, or exploring nature with her beagle, Mochi.

Nancy Contreras
Executive Assistant

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