Ms. Catherine Hartnett, MSW, LCSW

(she/her)
Preferred Name: Cate

Online Therapy

About Me

Cate Hartnett, MSW, LCSW is a Social Work Fellow at the Complex Trauma Treatment Center Boston. She earned her MSW from Boston College with a specialization in trauma and is currently completing training in EMDR. Cate works with individuals healing from complex trauma, including developmental trauma, attachment trauma, and complex PTSD.

Cate approaches therapy with warmth, curiosity, and deep respect for each client’s resilience. She strives to create a therapeutic environment that feels safe, collaborative, and attuned, allowing clients to explore difficult experiences at a manageable pace while reconnecting with their strengths and capacity for meaningful change.

Cate has a particular interest in working with the effects of chronic and interpersonal trauma across development. Her work often includes helping clients understand and navigate trauma-related dissociation, emotional dysregulation, and difficulties with trust and connection.

Education & Experience

Complex Trauma Treatment Center
Social Work Fellow
June 2026–Present

Provide individual psychotherapy to adults presenting with complex posttraumatic stress, developmental trauma, attachment injuries, dissociation, anxiety, depression, emotional dysregulation, and relational concerns.

Conduct comprehensive biopsychosocial assessments, risk assessments, individualized treatment planning, and ongoing clinical documentation.

Utilize trauma-informed and evidence-based interventions, including EMDR-informed treatment and attachment-focused approaches.

Collaborate with clinical supervisors and multidisciplinary team members to coordinate care and support clients’ treatment goals.

Participate in advanced clinical training focused on complex trauma, dissociation, EMDR, attachment, and affect regulation.


Stonehill College Counseling Services
College Counseling Intern, Final-Year Field Placement
August 2025–April 2026

Provided mental health services to college students through intake evaluations, psychosocial assessments, individual psychotherapy, and crisis intervention.

Managed a caseload of approximately 25 clients using a primarily biweekly psychotherapy model.

Provided both short-term and longer-term counseling addressing anxiety, depression, trauma, identity development, interpersonal relationships, academic stress, and life transitions.

Conducted Brief Alcohol Screening and Intervention for College Students sessions and administered the Strong Interest Inventory to support student wellness and career development.

Participated in campus outreach and prevention initiatives alongside direct clinical responsibilities.

Specialty Area

  • Alcohol/Substance Abuse
  • Anxiety/Panic Attacks
  • Attachment Disorders
  • Depression
  • Dissociative Disorders
  • Domestic Violence
  • Gender Identity
  • Grief/Loss/Mourning
  • Posttraumatic Stress Disorder (PTSD)
  • Self-Harm
  • Sexual Abuse
  • Somatic Issues
  • Sports Injuries
  • Survivor's Guilt
  • Traumatic Incident

Population Served

  • Adults
  • First Responders
  • LGBTQ+
  • Veterans/Military

Language

  • English

Insurance

  • Sliding Scale