

I am a psychiatric nurse practitioner with a deep passion for the intersection of community and well-being. My work in psychedelic medicine, harm reduction, and mental health advocacy reflects my commitment to accessible and inclusive care.
I am experienced, PMHNP compassionate, non-judgmental person, provide the full range of psychiatric-mental health care across the lifespan and can prescribe and administer psychotherapy.
Welcome! I’m Sarah Stewart, and I specialize in medication management for adults dealing with depression, anxiety, ADHD, bipolar disorder, and other mental health conditions. Together, we’ll explore your goals, strengths, and patterns to create a treatment plan that feels personal and empowering. My approach blends evidence-based care with compassion and collaboration—helping you find both immediate relief and lasting stability. You deserve care that meets you where you are and helps you move toward a more grounded, confident version of yourself.
I provide a safe, supportive, and nonjudgmental space where we work together to understand your unique needs and goals.
I believe healing happens when patients feel seen, heard, and empowered. My role is to walk alongside you, offering tools, education, and medication management tailored to your individual journey.
I completed my training as a PMHNP in California and have experience in both emergency and outpatient mental health settings.
If you’re ready to take the next step in your mental health journey, I look forward to working together to build a plan that supports your well-being.
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.
I realize that most of us could use support, especially during times of overwhelming challenges in our personal and professional lives. Life can be complex, with significant obligations and expectations from family, friends, and ourselves. When these challenges become too much, it’s normal to start doubting our ability to manage our affairs and interactions. If stress, doubt, and dissatisfaction go unaddressed, these feelings can develop into an unhealthy view of ourselves and our environment—and it’s at this point that many recognize a need for help.


Headway makes it easy to find support for your mental health — from finding the right provider, to understanding costs, to scheduling with ease.