Olivia Matthes Theriault, MHC-LP

Olivia helps new and expecting parents, families and adults feel safe and supported through big changes. She focuses on perinatal mental health, family conflict, and divorce and separation, with an approach that is attachment-oriented, trauma-informed and person-centered.

She has spent her career supporting children and families, from advocacy and care management to clinical work in a children's day treatment program. Today she also works as an early childhood mental health clinician and is trained in perinatal and postpartum interventions, so she understands how pregnancy, new parenthood and family changes ripple through a whole household.

Olivia helps parents work through conflict at home, co-parenting after divorce or separation, and the everyday stress of raising young children. She is trained in SPACE, a parent-focused treatment for children's anxiety and OCD, and holds a certificate in Circle of Security Parenting.

Olivia practices as a Mental Health Counselor–Limited Permit in New York, with weekly clinical supervision from Stephanie Fierro, LMHC.

Focus

Perinatal mental health (pregnancy and postpartum) · Family conflict · Divorce and separation · Parenting and co-parenting · Anxiety · Depression · Relationships · Life transitions · Trauma and PTSD · Women's issues · LGBTQ+

Approach

Attachment-based · CBT · ACT · DBT · Psychodynamic · Person-centered · Relational · Trauma-informed · Multicultural · Strength-based

Certifications

Circle of Security Parenting (2025) · Trained in SPACE (Supportive Parenting for Anxious Childhood Emotions) · Perinatal and postpartum interventions · Child-Parent Psychotherapy (in training)

License

MHC-LP, New York

Education

M.A., Counseling for Mental Health and Wellness, New York University, 2025 · B.S., Applied Psychology, New York University, 2020

Insurance

Aetna · Cigna (Evernorth) · Superbills for out-of-network

Self-pay

$95 individual · $150 couples · Sliding scale available

Availability

Accepting new clients, including evenings