Your Mental Health
is My Priority
Providing personalized, evidence-based psychiatric care to help you achieve balance, healing, and lasting well-being.
Compassionate Care
Empathetic, personalized support every step of the way.
Evidence-Based
Treatment plans grounded in the latest research.
Holistic Approach
Mind, body, and spirit working together.
Empowering You
Helping you build a healthier, stronger, more resilient you.
Welcome
I’m Diane Rene-Oster, PMHNP-BC
As a board-certified Psychiatric Mental Health Nurse Practitioner, I am dedicated to providing compassionate, comprehensive, and individualized mental health care.
My goal is to create a safe, supportive space where you feel heard, understood, and empowered on your journey to wellness.
Education, Experience & Credentials
EDUCATION
Walden University
MSN, Master of Science in Nursing
EXPERIENCE
More than a decade of nursing experience in psychiatry and palliative care.
CREDENTIALS
Board-Certified
Psychiatric Mental Health Nurse Practitioner (PMHNP-BC)
COMMITMENT
Dedicated to providing compassionate, personalized care for every individual.
How I Can Help
Psychiatric Evaluation & Diagnosis
Comprehensive psychiatric evaluations to understand your concerns, identify an accurate diagnosis, and create a personalized treatment plan.
Medication Management
Personalized medication management with ongoing monitoring to help improve symptoms, effectiveness, and overall well-being.
Psychotherapy
Compassionate, evidence-based therapy to help you navigate emotional challenges, develop coping skills, and support lasting wellness.
Substance Use Support
Supportive, nonjudgmental care to address substance use concerns and help you move toward healthier, sustainable change.
Specialties & Expertise
Anxiety
Depression
Bipolar Disorder
ADHD
Trauma & PTSD
Grief & Loss
Life Transitions
Mood Disorders
Sleep / Insomnia
Eating Disorders
OCD
Coping Skills
Whole-Person Care for Lasting Change
I believe in treating the whole person, not just the symptoms. By combining evidence-based treatments with a holistic, compassionate approach, we work together to address the root causes and create lasting change.
Your story matters, and I’m here to walk alongside you every step of the way.
LEARN MORE ABOUT MY APPROACH →Healing is not just about feeling better — it’s about becoming your best self.
We’re Here to
Support You
Have a question or ready to take the next step? Fill out the form and our team will get back to you as soon as possible.
Freehold, NJ 07728 | Middlesex, NJ 08846
In-Person & OnlineBook your appointment today and take the first step toward lasting change.
Send a Message
We typically respond within 1 business day.
What My Clients Say
Diane is compassionate, attentive, and truly cares about her patients. She takes the time to listen and creates a plan that works. I feel more like myself again.
I felt heard and supported from my very first appointment. The care I received was thoughtful, professional, and personalized to my needs.
Having a provider who listens without judgment has made such a difference. I feel more confident and supported in my journey toward wellness.
Take the First Step Toward
Better Mental Health
You don't have to go through it alone. I'm here to help.