

Managing bipolar disorder in Studio City is accessible through Headway's network of 2,746 licensed providers nationwide. Our platform supports both talk therapy and medication management, with sessions available virtually or in-person. Many clients save up to 75% on sessions through insurance, with some paying as low as $0 per visit.
I am currently accepting new clients. Life can feel loud, confusing, or just plain heavy, and you do not have to sort through it alone. I work with children, teens, and adults navigating anxiety, depression, ADHD, autism, mood changes, personality-related struggles, and big emotions. Whether you are looking for support for your child or for yourself, our work can help you feel more understood, more steady, and better equipped for everyday life.
Hi, I'm Cassie (Cassandra), a board certified Psychiatric Mental Health Nurse Practitioner with over five years of experience in mental health care.
I believe mental health treatment should feel supportive, collaborative, and free of judgment. Every person has a unique story, and I take the time to listen, understand your goals, and create a treatment plan tailored to your individual needs.
I specialize in the treatment of anxiety, depression, ADHD, stress, burnout, sleep concerns, and other common mental health conditions. Through thoughtful psychiatric evaluation and medication management, my goal is to help you find clarity, restore balance, and move forward with confidence.
Whether you are seeking support for the first time or looking for a fresh approach to your mental health care, I strive to provide a comfortable and welcoming space where you feel heard, respected, and supported.
I look forward to partnering with you on your journey toward improved mental wellness and helping you build the tools needed to thrive in everyday life.
I have 40 years experience in the mental health field in multiple roles, I believe listening and believing in the person is the most important way to practice therapy.
I graduated from Fresno Pacific University-Biblical Seminary in 2014 and obtained my license as a LMFT in 2018. My experience has been working with children, adolescents, families (4 years) and adults (11.5 Years). I have 11.5 years' experience with co-occurring disorders to include severe mental illness and trauma. I have utilized but not limited to the following evidence practices and modalities -ACT, Strength-Base, Family psychoeducation, DBT, CBT, and person centered. I am currently expanding my education/training in Internal Family Systems.
Demetric “Dee” Marsh, LCSW, JD, is a dedicated behavioral health professional with over 25 years of experience in the mental health field. She is a multistate licensed Licensed Clinical Social Worker and holds a Juris Doctor degree from the Jacob D. Fuchsberg Law School in New York. She earned her Master’s degree in Social Work from Adelphi University, with a specialization in mental health and addictions, and holds a Bachelor’s degree from Hofstra University in Sociology with a minor in Political Science and French Language/Culture.
Dee has extensive experience working in a variety of roles, including psychotherapist, program director, clinical supervisor, adjunct professor, and consultant. She also provides LCSW clinical supervision. Her practice includes working with individuals, families, couples, and groups.
She specializes in a wide range of areas, including anxiety, depression, trauma, stress management, addictions, grief and loss, workplace and employment issues, women’s issues, diversity and cultural concerns, spirituality, and court-related assessments and recommendations, as well as foster care and adoption-related services.
Dee believes in meeting each client where they are and tailoring treatment to their unique needs. She is committed to creating an inclusive, safe, and supportive environment that fosters trust, healing, growth, and a strong therapeutic alliance.
Robert Troy Vander Zwart obtained his Master's Degree at Gordon Conwell Theological Seminary and has over 25 years of experience. Prior to beginning in his private practice Troy worked in a variety of clinical settings. Troy's specialty is counseling individuals with symptoms of depression and anxiety and who have experienced trauma. He also has a passion for couples counseling, marriage and pre-marriage counseling, and family therapy.
Mental health has long been treated as the forgotten side of healthcare — and for me, that's exactly why it matters so much. As a Psychiatric Nurse Practitioner serving clients across California through telehealth and in-person care, I specialize in helping people navigate depression, anxiety, and ADD/ADHD. I believe that when mental health struggles go unaddressed, everything else in life suffers — and that healing is not only possible, it's necessary. When I'm not supporting my clients, you'll find me out in nature, getting lost in a good movie, or discovering new music — small reminders of the joy and balance I encourage my clients to find for themselves.


Headway helps you find expert-guided support for mood management — from finding the right therapist or psychiatrist, to understanding costs, to scheduling with ease.
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