Bipolar disorder therapists & psychiatrists in Petaluma, CA

I am a board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP) who is passionate about providing compassionate, supportive, and individualized mental health care. I work with adolescents and adults who may be struggling with anxiety, depression, mood changes, trauma-related concerns, or life stressors.

I specialize in the treatment of anxiety, depression, ADHD, trauma-related disorders, PTSD, bipolar disorder, and OCD in adolescents and adults. As a Doctor of Nursing Practice and board-certified Psychiatric Mental Health Nurse Practitioner, I bring more than 20 years of nursing experience, including extensive work in critical care and neuro-trauma medicine. My approach combines evidence-based medication management, psychotherapy, and practical lifestyle interventions to help patients achieve meaningful and lasting improvement.

Life is hard, but these days, it feels even harder. It is not uncommon to feel overwhelmed to the point of feeling stuck. This can lead to feelings of depression, anxiety, guilt, and even hopelessness. You may even judge yourself for feeling stuck or struggling. My hope is to help you get unstuck, connect to yourself, and feel excited about your life.

Seeking help can feel overwhelming, but you don't have to navigate it alone. I'm Robert Jimenez, a board-certified Psychiatric Mental Health Nurse Practitioner with experience caring for adults from diverse backgrounds. My approach is warm, collaborative, and grounded in evidence-based practice. Together, we'll work to understand what you're experiencing, identify your goals, and develop a treatment plan that supports your long-term well-being. I provide care in both English and Spanish and welcome individuals from all backgrounds, including the LGBTQIA+ community.

I know starting therapy can feel awkward. Sharing your inner world with someone new takes courage — but it can also be the start of genuine growth and healing. My goal is to make that step easier by creating a space that feels safe, warm, and grounded in understanding.

I’m a Licensed Clinical Psychologist in California, educated in Oregon, where my appreciation for nature, reflection, and connection began. I provide therapy for adults in California, helping people navigate anxiety, depression, trauma, relationship challenges, identity transitions, and life stress.

Over the years, I’ve worked in hospitals, rural community clinics, emergency departments, psychiatric hospitals, and outpatient psychotherapy, which has given me a deep respect for resilience and the many ways people adapt and heal.

With over a decade of acute care experience as a Registered Nurse and a Master’s degree as a Psychiatric Mental

Health Nurse Practitioner, I specialize in treating mood disorders, anxiety, PTSD, neurodiversity, and medication

management.

Welcome! I’m Marissa Brooks, a Licensed Clinical Social Worker with years of experience working in the mental health field. Throughout my career, I have worked in a variety of treatment settings, including crisis residential programs and outpatient mental health services. I hold a Bachelor’s degree in Psychology with an emphasis in Criminal Law and Behavior, as well as a Master’s degree in Social Work. I specialize in working with adults experiencing anxiety, depression, life transitions, and stress management.

It is my prayer to build a practice that helps you reach a place where your mental health is truly at the forefront. My hope is that with each appointment—and each day—you feel supported in moving closer to the best version of yourself.

I am a board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP-BC) dedicated to providing compassionate, patient-centered mental health care to individuals across California. With a background in both nursing and psychiatry, I specialize in diagnosing, treating, and supporting patients with a wide range of mental health conditions, including anxiety, depression, ADHD, bipolar disorder, and more.

I work with teens, young adults, and families navigating ADHD, anxiety, depression, substance use, identity exploration, family conflict, relationship challenges, life transitions, and emotional overwhelm. Whether you're feeling stuck, disconnected, overwhelmed, or uncertain about what comes next, therapy can provide a space to better understand yourself and move toward meaningful change.

My approach is warm, collaborative, and nonjudgmental. I believe therapy works best when clients feel genuinely understood, supported, and accepted for who they are. Together, we build on strengths, develop practical coping skills, and explore the patterns that may be getting in the way of living a more fulfilling life.

I strive to create a safe and supportive environment where clients can be honest, reflective, and fully themselves without fear of judgment. My goal is not only to help clients navigate current challenges but also to foster greater resilience, self-awareness, confidence, and connection.