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About Dr. Mung

Dr. Niiang Mung is a board-certified psychiatrist licensed in Texas and California, specializing in comprehensive and holistic mental health care. She founded Pax Mentis Psychiatry to create a calm, supportive space where patients can experience peace of mind, renewed clarity, and meaningful healing.

Dr. Mung trained at Loma Linda University School of Medicine and completed her psychiatry residency and fellowship in Child & Adolescent Psychiatry at Texas Tech University Health Sciences Center. Her clinical expertise includes perinatal mental health, PTSD and trauma-related conditions, mood and anxiety disorders, ADHD, and patient-centered medication management grounded in evidence-based and integrative approaches.

Her philosophy is simple: healing is most effective when care is thoughtful, relational, and deeply attentive to each patient’s unique story. She combines clinical expertise with a warm, holistic perspective to help patients move toward emotional stability, resilience, and renewal.

Our Services

  • Perinatal & Women’s Mental Health

    Supporting emotional wellbeing through pregnancy, postpartum, breastfeeding, fertility transitions, and PMDD.

  • Attention & Executive Functioning Care

    Clarifying attention, focus, and organizational challenges in children, teens, and adults.


  • Child & Adolescent Psychiatry

    Developmentally informed psychiatric care for children and teens, with parents as essential partners.


  • Integrative & Lifestyle-Oriented Psychiatry

    Whole-person psychiatric care that considers mind, body, spirit, and environment.