

Headway partners with UnitedHealthcare to bring affordable mental healthcare to Slidell across diverse neighborhoods including Fremaux Town and areas near the North Shore. Patients save an average of 75% on sessions with copays starting at $0, and our network of 308 providers ensures you find someone matching your needs.
My name is Shanna McMullen, and I am a Psychiatric Mental Health Nurse Practitioner with a Master of Science in Nursing from Northwestern State University of Louisiana. I work with adults and seniors, and I bring a broad, inclusive, and genuinely creative approach to mental health care.
My clinical areas span anxiety, depression, bipolar disorder, PTSD, OCD, ADD/ADHD, panic disorders, chronic conditions, sleep disorders, stress, relationships, and family concerns. I offer dedicated support for maternal mental health — including prenatal and postpartum experiences — and I am deeply committed to affirming, knowledgeable care for LGBTQ+ individuals, including those navigating gay, lesbian, bisexual, and transgender experiences, as well as men's and women's mental health needs.
One thing that sets my practice apart: I incorporate Art Therapy as one of my therapeutic approaches — using creative expression as a powerful pathway to insight, healing, and self-discovery for clients who connect with that kind of work.
Whatever brings you here, you will be met with openness, care, and the full breadth of what I have to offer.
I am Shannon Robertson, a board-certified Psychiatric Mental Health Nurse Practitioner and the founder of Mosaic Minds Wellness & Consulting. I believe mental health care should feel human, not rushed or impersonal. I strive to create a judgment-free space where you feel safe, respected, and truly heard. I take time to understand your story, not just your symptoms, and I approach care with compassion, curiosity, and empathy. My goal is for you to feel supported, empowered, and never alone in your healing journey.
Signed consents, questionnaire and telehealth forms are collected via the Headway and Mosaic Minds EHR portal and are required before the visit.
Online Booking: https://mosaicminds.intakeq.com/booking
I believe everyone needs help from time to time.
I specialize in evening and weekend appointments. Later appointments are available, please request your needs.
I am a friendly goal-oriented therapist who believes strongly in positive self-reinforcement. I have a Master's degree from La Tech University with a background in private practice for over 20 years. I am Licensed in Louisiana and Texas as a professional counselor. I am also Licensed as a marriage and family therapist in Louisiana.
I'm Anissa, a Board Certified Psychiatric Mental Health Nurse Practitioner specializing in the evaluation and treatment of ADHD and other co-existing conditions.
When you work with me you get care that is calm, attentive, and centered on you.
Who I Work With:
I support individuals who are struggling with poor performance at work/school, anxious thoughts, panic attacks, depressed mood, occupational burnout, and other related conditions.
You're in the right place if:
✓ You're constantly overwhelmed or stressed about upcoming events or tasks needing to be completed
✓ You've been working harder to keep up but you feel like you're failing and burning out
✓ You suspect you have ADHD and need an evaluation, or you've been told you don't have ADHD and would like a second opinion
✓ You need help getting school or workplace accommodations or a leave of absence due to mental stress
✓ Past providers rushed you or didn't listen to your concerns



Headway makes it easy to get affordable in-network mental health care with United Healthcare — from finding the right therapist or psychiatrist, to understanding costs, to booking your first session.
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