Obsessive-compulsive disorder therapists & psychiatrists in San Mateo, CA

Hello, my name is Sherri Crespin, a board-certified Psychiatric Mental Health Nurse Practitioner passionate about providing integrated care for complex mental health challenges, including personality disorders, PTSD and trauma, substance use disorders, ADHD, depression, anxiety, panic disorders, mood disorders, and bipolar conditions. My practice recognizes these conditions are interconnected in ways requiring specialized understanding.

I chose these specializations because I understand how trauma influences personality development, how ADHD complicates substance use recovery, how symptoms emerge during extreme stress, and how these complex interactions require providers who see the complete picture. Whether you're in recovery while managing other conditions, dealing with personality patterns that developed as survival mechanisms, or navigating multiple diagnoses, I bring the expertise needed for comprehensive care.

My approach emphasizes evidence-based treatments and the healing power of being truly understood. I recognize that seeking help for stigmatized conditions like personality disorders takes tremendous courage, especially after negative experiences with providers. I create a therapeutic space where you can explore your experiences without judgment or shame.

You can expect a thorough assessment, personalized treatment planning, and consistent support throughout our work together. My goal is to help you build resilience, develop effective coping strategies, and thrive in your daily life.

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. You can text us your info or email us at [email protected]. Please send us a picture of your insurance information and photo ID!

Welcome, I'm glad you're here.

I’m Bechael S. Harris, MSN, APRN, PMHNP-BC, a board-certified psychiatric mental health nurse practitioner with over 27 years of nursing experience. I provide care for adults and older adults navigating challenges such as depression, anxiety, dementia, Alzheimer’s disease, and other mental health concerns. My practice blends compassion, evidence-based treatment, and a commitment to helping each person feel heard, valued, and supported.

Shara Ally, DNP, PMHNP-BC, is a board-certified Psychiatric Mental Health Nurse Practitioner providing evidence-based medication management for adults (18+) via telehealth. As an author and TEDx speaker, she translates complex research into clear, practical care plans that help patients feel informed and supported.

Shara specializes in mood and anxiety disorders, trauma-related conditions (PTSD), adult ADHD, OCD, bipolar spectrum disorders, and women's mental health across the reproductive lifespan—including perinatal and postpartum mood disorders, PMDD, and menopausal transitions. Her practice is medication-focused and highly collaborative, with education, skills coaching, and supportive check-ins integrated into visits. She coordinates closely with therapists, primary care providers, OB-GYNs, and other clinicians to ensure cohesive treatment.

Patients can expect a comprehensive evaluation reviewing history, symptoms, prior treatments, and goals. Shara practices thoughtful prescribing with transparent discussion of options, benefits, and side effects so decisions are truly shared. She uses measurement-based care—structured symptom tracking—to guide adjustments and reduce trial-and-error. Her whole-person approach integrates sleep, nutrition, movement, and stress management when relevant, with streamlined access through secure telehealth and clear after-visit summaries.

Shara's style is warm, direct, and person-centered, grounded in shared decision-making. Her care is trauma-informed, culturally responsive, and rooted in current clinical evidence. Beyond clinical practice, she serves as a nurse educator and academic mentor, shaping future psychiatric clinicians through evidence-based teaching. An international fellowship in India enriched her global perspective through research and teaching in hospital and university settings.

For up-to-date availability, please visit us or call/text us at 415-968-6515.

I have been a mental health professional since 2006 and I strive to help people realize that “the grass is always greenest where you water it’-Unknown. My areas of special focus include grief, parent/adult child conflict, depression; anxiety, bi-polar, marital, self-esteem, academic, occupational, empty nest, personal coaching, and stress management. I obtained a Bachelor’s degree in Psychology from Southern New Hampshire University, a Master’s degree in Marriage and Family Therapy from California Baptist University and a Doctorate of Education in Psychology from Argosy University.

IMPORTANT: All clients must complete our intake form and sign our policies before their appointment. Please complete these documents at https://intakeq.com/new/6oakjo/lusjbb or contact us at 602-800-4699 (call or text). Please also email or text us a copy of your photo ID/driver's license at [email protected]

For the most current schedule and openings, please book directly on our website at https://mentalhealthpractitioners.com/book-appointment/ or call us at 415-968-6515.

As a PMHNP-BC who specializes in autism, complex cases, OCD, personality disorders, PTSD/trauma, schizophrenia/psychosis disorders, and substance use, I've built my practice around understanding that every person's mental health journey is unique—especially when multiple conditions interact or when traditional approaches haven't worked.

I also provide comprehensive treatment for depression, anxiety, panic disorders, mood disorders, and bipolar disorder, always with an understanding that these conditions often overlap and influence each other in complex ways. What I want you to know is this: your experiences are valid, your struggles make sense in the context of your life, and there's no such thing as being "too much" for treatment.

Whether you're masking autistic traits, battling compulsive behaviors, managing intense emotions, processing trauma, questioning reality, or struggling with substances, I meet you exactly where you are without trying to force you into a predetermined mold. My approach combines evidence-based treatments with deep respect for your individual needs and experiences.

You deserve a provider who doesn't see complexity as a problem to solve, but as a roadmap to understanding how to best support your unique path to wellness.

I’m Antionette Sob, a Board-Certified Psychiatric Mental Health Nurse Practitioner dedicated to empowering individuals to live fuller, more balanced lives. With over a decade of nursing experience and advanced training in mental health, I aim to provide safe, supportive, and compassionate care. I believe that everyone can heal and grow — sometimes we need the right tools and guidance.