Obsessive-compulsive disorder therapists & psychiatrists in Simi Valley, CA

I have experience working with children, youth, adults, families, couples but in the last few years, I have shifted my main focus to work with adults who are struggling with anxiety, trauma and depression. I’ve worked in the mental health field for 22 years and been practicing as a therapist for about 10 years. As a licensed marriage and family therapist, I believe that prioritizing mental health is key to happiness and stability in life. Seeking help can be difficult, so congratulations on taking your first step to start therapy.

Hi, I’m Christina! I’m a double board-certified Family Nurse Practitioner and Psychiatric Mental Health Nurse Practitioner with over 12 years of experience in healthcare. I earned my bachelor’s degree from UCLA, master’s from Cal State LA, and post-graduate certification from National University.

Over the years, I’ve had the opportunity to work in family practice, urgent care, and emergency settings, which has given me a broad understanding of how physical and mental health are connected.

I specialize in supporting individuals who are dealing with depression, anxiety, PTSD, insomnia, mood disorders, and other mental health concerns.

I am a Psychiatric Mental Health Nurse Practitioner (PMHNP) who provides compassionate, evidence-based care for adults. My approach is clinical, trauma-informed, and whole-person, meaning I look beyond symptoms alone and consider the many parts of life that shape mental health. I believe care should feel collaborative and supportive, not overwhelming. My goal is to help you feel understood while creating a treatment plan that fits your life, values, and goals. Whether you are seeking medication management, in-office IV or IM ketamine treatment, or support through a difficult season, I want you to feel safe, respected, and empowered.

I'm a Licensed Professional Clinical Counselor with nearly a decade of experience across community mental health, hospital, and private practice settings. I offer sessions in English and Mandarin, and I specialize in working with individuals navigating anxiety, burnout, life transitions, grief, and relationship challenges. I have a particular understanding of how culture, family history, and identity shape our inner lives — especially for Asian American and immigrant communities

I am a dual board-certified Nurse Practitioner specializing in both Family Practice and Psychiatric Mental Health. With a foundation in whole-person, evidence-based care, I integrate medical management with psychotherapy and lifestyle interventions to support mental and physical wellness.

My background spans outpatient psychiatry, primary care, home health, and assisted living settings, allowing me to understand the unique needs of patients across all stages of life. I have extensive experience treating mood and anxiety disorders, trauma-related conditions, and chronic medical comorbidities that impact emotional well-being.

I believe in creating a collaborative, compassionate, and culturally sensitive environment where patients feel heard and empowered to take an active role in their care. My approach focuses on building balance—supporting both the mind and body—through medication management, therapy, and integrative care strategies.

Hi, I am a Board-Certified Psychiatric Mental Health Nurse Practitioner. I work with veterans, first responders, and people in high-stress or high-responsibility roles. I also provide care in English, Russian and Ukrainian languages.

IMPORTANT: For current availability, visit https://mentalhealthpractitioners.com/ or call/text us anytime at 415-968-6515—we make it super easy! Intake forms are required before your first appointment and will be emailed to you when you book online. Please be sure to send us a picture of your insurance information and photo ID!

I'm Stephanie Patrick-Calvillo, a Board-Certified Psychiatric Mental Health Nurse Practitioner who believes mental health care should be accessible, compassionate, and tailored to each individual. Over the past 15+ years, I've worked with diverse populations—from adolescents facing their first mental health crisis to adults navigating complex psychiatric conditions, and seniors experiencing cognitive and emotional challenges.

My practice is grounded in the belief that effective treatment goes beyond symptom management. I take time to understand your unique story, your strengths, and the factors that shape your mental health. Whether you're dealing with a new diagnosis or have been managing symptoms for years, I meet you where you are with respect and without judgment.

I specialize in treating mood disorders, anxiety, psychotic disorders, personality disorders, substance use concerns, and behavioral issues related to dementia. I've completed advanced certification training because I'm committed to staying current with evidence-based treatments—ensuring you receive care that reflects the latest research.

Beyond clinical work, I'm passionate about mentoring the next generation of healthcare providers. I've mentored nursing and nurse practitioner students from multiple universities, which keeps me grounded and reminds me why this work matters.

When you work with me, you're getting someone who genuinely cares, who's seen mental health challenges from many angles, and who believes deeply in your capacity for healing and growth.