Behavioral Health Treatment in Simi Valley

At Valiant Behavioral Health, we believe healing should be both compassionate and clinically excellent. Our mission is to deliver effective, trauma-informed behavioral health treatment in Simi Valley, helping adults recover from addiction, emotional distress, and trauma—without needing to pause their lives.

Located in the heart of Simi Valley, our program offers evening IOP and PHP services designed for working professionals and parents. You don’t need to hit rock bottom to get better. With our support, you can begin your recovery journey now—on your schedule, in your real world.



Our Mission, Vision & Values

Mission
To help people who are suffering—particularly those struggling with addiction and co-occurring trauma—by offering effective, compassionate, and clinically excellent behavioral health treatment in Simi Valley.

Vision
To end suffering through accessible, trauma-informed care rooted in integrity, excellence, and real human connection.

Core Values

  • Integrity – Doing what’s right for clients and clinicians alike
  • Honesty – Encouraging open, self-aware recovery
  • Empathy – Meeting each client with compassion, not judgment
  • Clinical Excellence – Evidence-based therapy delivered by trauma-informed professionals
  • Commitment – Walking with clients through their full healing journey
  • Forward Thinking – Evolving with best practices in behavioral healthcare
What We Believe at Valiant

At Valiant, our approach to behavioral health treatment in Simi Valley is shaped by our beliefs:

  • We believe healing happens in real life, not in isolation
  • We believe you don’t need to fall apart to seek help
  • We believe trauma can be transformed with the right support
  • We believe the time you spend getting better is never wasted
  • We believe it’s never too early—or too late—to start healing
  • We believe compassion and clinical excellence go hand in hand
The 3 C’s That Guide Our Care

Every client we serve benefits from our unwavering focus on Courage, Compassion, and Clinical Excellence.

  • Courage
    Recovery takes bravery. Whether it’s your first step or your fifth, we honor the courage it takes to change.
  • Compassion
    Our trauma-informed team meets you without judgment. We create a space where healing feels safe, supportive, and human.
  • Clinical Excellence
    At the core of our behavioral health treatment in Simi Valley is expert care. Our team includes clinicians trained in modalities like CBT, DBT, and EMDR—delivering therapy that’s both evidence-based and deeply personal.
Start Your Recovery With Behavioral Health Treatment in Simi Valley

If you’re silently struggling, we’re here to help. Valiant’s outpatient behavioral health treatment in Simi Valley offers expert care on your schedule. With evening sessions, trauma-informed support, and a welcoming space, you can begin healing—today.

Call now to speak with our admissions team.
Evening IOP and PHP available. Insurance accepted.

Our Team

Erik Jarrin

Erik Jarrin

Founder and CEO

Learn More About Erik

Coming Soon

Almira Agosto, LCSW (81026)

Almira Agosto, LCSW (81026)

Clinical Director

Learn More About Almira


Almira Agosto is a Licensed Clinical Social Worker (LCSW) and Somatic Experience Practitioner, which is a body-oriented approach to healing trauma and stress-related disorders. Over the past decade, Almira has specialized in working with people who have survived personal, community, and service-related trauma, including Veterans and 1st Responders. In addition, Almira’s clinical experience includes working in Substance Use and Mental Health Disorder residential and outpatient programs.  She is committed to helping all people receive the right information, guidance, and opportunities to access their internal strengths and resources to help them unleash their power to heal and realize their highest vision of self.

Natanya Ross

Natanya Ross

ED of Business Development

Learn More About Natanya

Natanya Ross has spent nearly twenty years in the mental health and addiction treatment field, bringing a rare blend of operational expertise, trauma-informed leadership, and deeply lived experience to every organization she touches. Her work is rooted in her own long-term recovery after surviving substance use and homelessness; she has been in recovery for the last two decades and remains a passionate advocate for women navigating similar journeys.

Over the course of her career, Natanya has served as a Program Director, Operations Director, Director of Business Development, and Chief Marketing Officer, helping build, refine, and scale treatment programs across Southern California. Her leadership is marked by a focus on integrity, clinical alignment, elevating the voices of both clients and staff, and the principle of kindness in knowing how to relate with an addict in the depths of hopelessness.

Natanya is currently the President and CEO of WAAT (Women’s Association of Addiction Treatment), a national nonprofit dedicated to supporting and advancing women in behavioral health. Under her leadership, WAAT has expanded its educational programming, strengthened its advocacy efforts, and fostered a community where women across the industry can grow, connect, and lead.

 

While she began her professional life as an actress in the 1990s, Natanya’s purpose and impact emerge most vividly in her work within mental health, addiction treatment, and community.

Now the ED of Business Development at Valiant Behavioral Health, Natanya continues in her pursuit to be a voice for the voiceless. She resides in Los Angeles with her boyfriend and their dog, Lucy.

Christine Rongey, MD

Christine Rongey, MD

Medical Director

Learn More About Christine

Dr. Christine Rongey is a board-certified physician with over a decade of clinical experience, specializing in addiction medicine and comprehensive patient care. She earned her medical degree from the University of Pennsylvania, where she developed a strong foundation in evidence-based medicine and compassionate patient advocacy. Dr. Rongey completed her residency training at the Keck School of Medicine of the University of Southern California (USC), where she refined her skills in managing complex medical and behavioral health conditions.

Throughout her career, Dr. Rongey has dedicated herself to helping individuals overcome substance use disorders through a holistic, patient-centered approach. Her practice integrates the latest advances in addiction treatment with a deep understanding of each patient’s unique journey toward recovery.

With 10 years of clinical experience, Dr. Rongey is recognized for her commitment to improving access to quality addiction care and promoting long-term wellness for her patients and their communities.