Our Team
B/Bianca
Youth Outreach Coordinator
925-692-0090 x709
B/Bianca (elle/they ella/she). They’re HELLA proud to be first gen chicanx, nonbinary, queer. They are majoring in Sociology to then transfer to a University to continue studying and absorbing all the knowledge in sociology, social work and social justice. Their career and life end goals are just to absorb as much knowledge as possible, escuchar todas las historias de nuestra gente, absorb knowledge spread knowledge a whole cycle of never ending learning and teaching in whatever way that ends up looking for them.
Carol Osmer Newhouse, LCSW
Clinical Supervisor
925-692-0090 x724
Carol (she/her Pronouns) identifies as Lesbian and Queer, and. comes to Rainbow with over 30 years of clinical experience. She has worked as a Therapist in Private Practice and in agency settings as Program Director, Training Director, and Clinical Director of a community based Mental Health Agencies. Currently Carol provides Clinical Supervision of Psychology students, and therapists in training for Licensure: Clinical Social workers, Licensed Professional Counselors and Marriage and Family Therapists. She has worked in this capacity at John F. Kennedy University, Pacific Center for Human Growth, and Rainbow Community Center. Carol assists therapists in finding their clinical confidence, expertise, and particular skill in working with the LGBT+ community, and other marginalized populations. She works from a place of authenticity, presence and mutual empowerment.
Chris Holden
Older Adults Program Manager
925-692-0090 x713
Chris received his Bachelor of Science at Boston’s Northeastern University and an addition graphic arts degree at Epping Forest College, London, England. His most recent work experience was as a Program Coordinator for 140+ disabled/formerly homeless seniors in a supportive housing setting. Prior to that, Chris lived in Zurich, Switzerland for 7 years and traveled extensively through Europe and Asia and taught English in Dharamsala, India.
Jorge "JC" Chamorro
Executive Director & Youth Housing Director
Jorge "JC" Chamorro is a proud Pansexual Nicaraguan-American who has dedicated his life to uplifting and serving his community. Immigrating to the United States from Nicaragua as a child, Jorge grew up in San Francisco's vibrant Mission District, where he attended school, built a family, and developed a deep connection to his community.
His journey in community service began during his high school and early college years, working with impactful nonprofit organizations like Instituto Familiar De La Raza, Horizons Unlimited, and Mission Neighborhood Health Center. These early experiences fueled his passion for advocacy and community empowerment.
For more than two decades, Jorge (widely known as JC) has been a driving force in the LGBTQ+ community as the owner and lead promoter of JC Events, producing iconic music and nightlife experiences throughout Northern California. His work has fostered joy, connection, and visibility, cementing his reputation as both a cultural creator and community advocate.
Now serving as Executive Director of Rainbow Community Center of Contra Costa, JC continues to champion equity, belonging, and vibrancy, creating spaces where all people can thrive and be seen.
Nicole (she/her) is a queer Latina social worker with a deep commitment to LGBTQIA+ community, health equity, and social justice. She began working with Rainbow in 2015 through her role in HIV testing at Contra Costa County Public Health. While earning her MSW in Community Mental Health at Cal State East Bay, Nicole joined Rainbow as an intern—providing counseling, leading the Women’s HIV Support Group, and developing programming focused on women’s services.
Now a dedicated member of Rainbow’s clinical team, Nicole is passionate about expanding therapeutic services and fostering representation for 2SLGBTQIA+ therapists and clients. In her free time, she loves spending time with her kids, dancing, reading, thrifting, and all things Frida Kahlo.
Parisa Zamanian
Spanish Bilingual Associate Clinician/Youth Program Manager & Trainer
925-692-0090 x707








