Find a psychiatrist in Newhall, CA — covered by insurance

My name is Dianne Fontaine, MSN, APRN, and I'm a Licensed Psychiatric Mental Health Nurse Practitioner, Board Certified (PMHNP-BC) by the American Nurses Credentialing Center (ANCC). I obtained my Master’s Degree from Walden University and has undergone advanced clinical training, equipping me to assess, diagnose, and treat a spectrum of psychiatric illnesses, as well as provide psychotherapy.

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.

Hi, I’m a psychiatric nurse practitioner who believes everyone deserves to feel heard, supported, and treated with kindness. I create a warm, welcoming, and judgment-free space where you can feel comfortable being yourself. I work with clients experiencing anxiety, depression, stress, mood changes, and other mental health concerns. Along with medication management, I also use supportive therapy techniques, including CBT and motivational interviewing, to help clients build healthy coping skills and feel more confident in their daily lives.

Hello, my name is Alexander Valenzuela PMHNP. I specialize in psychiatric medication management and cognitive behavioral talk therapy. If you're struggling with your mental health and realize you want help, you don't have to do it alone. I am looking forward to starting the journey with you to help achieve your best self.

Hello! I provide psychiatric evaluations and medication management for children (6+), teens, adults, and seniors. Life can feel overwhelming when anxiety, depression, ADHD, or bipolar mood swings affect your energy, focus, relationships, and daily life. I believe mental health care should feel supportive, comfortable, and personalized. As a board-certified PMHNP with over five years of experience, I help individuals struggling with anxiety, depression, ADHD, autism, bipolar disorder, OCD, PTSD, eating disorders, schizophrenia, and other mental health concerns.

My path into psychiatry is both professional and personal. I moved to the U.S. alone at 17 while navigating complex PTSD and periods of misdiagnosis, which shaped how I understand mental health today. I began with a bachelor’s degree in psychology at Nankai University, then trained as a nurse and nurse practitioner at Charles R. Drew University and Purdue University.

Over the past 7 years, I’ve worked across medical and mental health settings, developing an approach that balances clinical precision with individualized care. I specialize in anxiety, depression, bipolar disorder, and complex PTSD, particularly for individuals who feel stuck or haven’t found relief in traditional treatment.

I’m licensed in California, Virginia, New York, Washington, and Oregon, and provide care via telehealth.

I am a double board-certified family and psychiatric/mental health nurse practitioner. As a Family and Psychiatric Nurse Practitioner, I believe that healing begins with understanding. My goal is to create a safe, supportive space where you can share your story without judgment and work toward meaningful, lasting change. I provide individualized, evidence-based care for adults facing depression, anxiety, PTSD, bipolar disorders, ADHD/ADD, and sleep disorders.

As a Nurse Practitioner, I believe healthcare should be a partnership, not a prescription. My approach combines advanced clinical skills with a deep commitment to patient advocacy, ensuring every individual has the tools and confidence to take charge of their health. I specialize in creating personalized treatment plans that honor the whole person — mind, body, and spirit. Whether I’m diagnosing, prescribing, or simply listening, my mission is to make every patient feel seen, heard, and cared for. I strive to turn sessions into moments of trust, learning, and hope."

I am board certified in Family Practice as well as Psychiatry and have been in practice for 25 year. I work with mental health issues such as depression, anxiety, sleep disorders, bipolar disorder, as well as address physical symptoms or issues that may affect mental health. I hold a Doctorate degree in education and Master Degrees in Advance Practice Nursing and education.

I know how heavy life can feel when you’re carrying pain, uncertainty, or self-doubt. But I believe, as a wise old wizard once said, “Happiness can be found even in the darkest of places, if one only remembers to turn on the light.” My role is to help you find that light again. I work with Gen Z and Millennial adults facing anxiety, depression, trauma, bipolar disorder, ADHD, and more. Through integrative, culturally responsive care, I combine evidence-based psychiatry with holistic strategies to help you feel heard, supported, and empowered to create a life that aligns with your true self.

I’m here to make this journey feel gentle, welcoming, and human. I keep things clear and simple so you can focus on what matters, not the overwhelm. My style is warm, encouraging, and a little poetic—because softness helps us breathe. Let’s take this step together, one calm moment at a time.

I am a dedicated and compassionate Board-Certified Psychiatric Mental Health Nurse Practitioner (PMHNP) and Women’s Health Nurse Practitioner (WHNP). With an unwavering passion for guiding individuals toward mental well-being, I leverage my extensive experience in advanced nursing practice to identify and address the root causes of mental health disorders.