Diana Mousseau, LMSW, LCSW

RosevilleOnline Therapy
Verified by GLPG


  • School:
    University of Michigan
  • Degree:
    Master of Social Work
  • Additional Certificates:

    Certified Post Partum Mood Disorder, Certified Trauma and Disaster Specialist

Diana Mousseau is a Licensed Clinical Social Worker, that aims to give each client a safe and welcoming environment for growth and healing. She provides the opportunity to achieve personal goals, manage complex life changes, establish boundaries, and have healthier relationships. While in therapy she can help you find balance, create a support system, and find inner peace.

Diana completed her Master’s degree in Social Work at the University of Michigan and has earned certifications in perinatal depression and anxiety as well as veteran and active military care. She has over 20 years of experience in social work and counseling. She uses cognitive behavioral therapy, cognitive processing therapy, psychotherapy, and solution and grief focused counseling in order to find a treatment that meets your needs. She enjoys working with adults, couples, and families from diverse backgrounds. Diana specializes in relationship issues, blended and nontraditional families, perinatal mood disorders, PTSD, life transitions, stress management, and new or ongoing mental health diagnosis.

Accepted Insurance

  • Aetna/Cofinity
  • BCBS
  • BCN
  • McLaren
  • Medicare
  • Priority Health
  • UBH
We verify your insurance benefits and will provide you with a cost estimate prior to your first session.


  • ADHD (Adults)
  • Anger Management
  • Anxiety
  • Borderline Personality
  • Codependency
  • Coping Skills
  • Depression
  • Divorce
  • Emotional Disturbance
  • Family Conflict
  • Grief
  • Impulse Control Disorders
  • Infertility
  • Infidelity
  • Life Transitions
  • Marriage
  • Mood Disorders
  • Parenting
  • Personality Disorders
  • Pregnancy / Prenatal / Postpartum / Perinatal
  • Premarital
  • Relationship Issues
  • Self Esteem
  • Social Anxiety
  • Spirituality
  • Stress
  • Trauma and PTSD
  • Women's Issues


  • Veterans


  • Relationship Issues
  • Life Transitions
  • Women's Issues

Session Types

  • Couples
  • Family Therapy with Adults
  • Individuals

Age Specialty

  • Adults
  • Elders (65+)

Types of Therapy

  • Acceptance and Commitment (ACT)
  • Clinical Supervision and Licensed Supervisors
  • Cognitive Behavioral (CBT)
  • Cognitive Processing (CPT)
  • Dialectical (DBT)
  • Eclectic
  • Emotionally Focused Couples Therapy
  • Family / Marital
  • Gottman Method
  • Interpersonal
  • Person-Centered
  • Positive Psychology
  • Psychodynamic
  • Trauma Focused

Faith-Based Therapy

  • Christian

Request an Appointment with Diana Mousseau

We will do our best to match you with the therapist you've requested. Due to limited scheduling availability, we cannot guarantee they will be available. However, we will do our best to provide alternative options if needed.

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