Addiction therapists & psychiatrists in Lancaster, CA

I am a highly skilled therapist with a strong focus on trauma therapy, substance abuse, and mental health. I hold dual licensure as a Licensed Marriage and Family Therapist, and as an Associate Clinical Counselor. My educational background includes a Master of Arts in Counseling Psychology from William Jessup University and a Bachelor's degree in Psychology with a minor in Child Development from California State University, Chico.

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.

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.

IMPORTANT: For current availability, visit https://mentalhealthpractitioners.com/ or call or 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. You can text us your info or email us at [email protected]. Please be sure to send us a picture of your insurance information and photo ID!

I'm Christina Stelly, DNP, APRN, PMHNP-BC — a board-certified Psychiatric Mental Health Nurse Practitioner based in Martinez, CA. With over 15 years of clinical experience across inpatient psychiatry, maternal health, and advanced practice, I am deeply committed to delivering compassionate, evidence-based mental health care to every person I serve.

I specialize in treating schizophrenia, bipolar disorder, PTSD, depression, anxiety, and etc.

My academic background includes a Post-Certificate DNP in Psychiatric Mental Health from the University of Illinois Chicago, a Doctorate of Nurse Practice from Texas Tech University, and a Master of Science in Nursing from Touro University. I also completed an intensive NP residency focused on advanced psychiatric care, crisis stabilization, and forensic psychiatry, which further strengthened my clinical expertise.

Earlier in my career, I specialized in maternal mental health, serving as a Patient Care Director for high-risk obstetric populations and contributing to perinatal mental health policy at the state and national levels. This background gives me a uniquely broad, whole-person perspective on psychiatric care across the lifespan.

My approach is grounded in trauma-informed, individualized care. I take time to fully understand your history, concerns, and goals before collaboratively building a treatment plan tailored to you. I have also served on health policy committees and presented at national nursing conferences, reflecting my commitment to psychiatric care.

Clients often describe me as warm, approachable, and easy to talk to. I aim to create a supportive and engaging space where you feel safe to be emotionally open, while also bringing a sense of ease.

At the core of my style is curiosity. I’m drawn to the “why” - why we feel, think, and respond to life the way we do. I take a holistic and at times existential approach, exploring not just immediate challenges, but the deeper patterns, life transitions, and questions of meaning that shape your experience.

I draw from a wide range of personal and professional experiences, including working directly with and overseeing a large and diverse group of clients. This allows me to adapt different techniques and perspectives to support growth, insight, and lasting change. Throughout the process, I remain thoughtful, engaged, and focused on what will be most helpful for you.

I am a therapist with a Masters in Social Work from California State University, Sacramento.

I have worked with children, teens, families and adults for over 10 years. I specialize in trauma-focused care, while I have also helped with many life challenges and mental health needs.

I help people deal with life when it feels like a roller coaster, where there are ups & downs, sudden twists & turns and constant turbulence. I can help you cope with the ride, give you reassurance and help build a bridge to help you access what you need. I will eventually challenge you to steer the ride without me to ensure you can live your life independently.