La Mesa

Samantha Sanchez, AMFT, APCC


Associate Marriage and Family Therapist & Associate Professional Clinical Counselor Supervised by Matti Millman, LMFT

Samantha is an Associate Marriage and Family Therapist and an Associate Professional

Clinical Counselor in California. She earned her Bachelor’s degree in Psychology from Liberty

University and her Master’s degree in Clinical Counseling from Point Loma Nazarene University.

She has experience providing mental health services to children, adolescents, young adults,

and families in San Diego County within schools and the community. Samantha has experience

in supporting clients presenting with challenges in anxiety, depression, grief, trauma,

self-esteem, life transitions, emotional regulation, perfectionism, communication in relationships,

and school-related concerns. Her priority is providing therapy that is culturally aware,

trauma-informed, and client-centered. She works from a holistic and integrative lens that values

the unique qualities of an individual, honoring their values and aiming to customize their mental

health care in a way that creates a space that is both safe and comfortable for them to fully

express their authentic selves. Within therapy sessions, Samantha often utilizes DBT informed

treatment, CBT, mindfulness, compassion-focused, strength-based, and narrative therapy

interventions. Samantha is a warm and genuine therapist who meets her clients where they are

at and supports them in exploring their thoughts, improving their self-understanding, meeting

their personal mental health goals, and improving their relationships. Samantha looks forward to

walking by your side and collaborating with you in navigating all the paths within your own

journey of growth!

Joel Gamache, LMFT


Licensed Marriage and Family Therapist

Joel is a Licensed Marriage and Family Therapist (LMFT) licensed in the state of California. He earned his Master of Science in Marriage, Family, and Child Therapy from the University of Phoenix in 2016. He has experience providing therapy for the psychological effects of chronic pain and intense acute pain, San Diego's homeless population, pre-teens and teens in the juvenile justice system prior to providing therapy to children, teens, and families in the county clinic setting. In this setting he served those who experienced trauma, developmental trauma, child abuse, and developmental delays. He has a psychdynamic therapy style and primarily focuses on improving family communication to resolve difficulties. Joel is a veteran of the United States Navy and is thankful to have service members and their dependents within the population he serves. He has been serving the San Diego community for 13 years within the fields of nursing, hospice volunteering, and psychotherapy.

Amanda Moore, APCC


Associate Professional Clinical Counselor Supervised by Matti Millman, LMFT

Amanda Moore is an associate clinical counselor passionate about supporting children, teens, and families. She received her masters degree with a concentration in Early Childhood Mental Health from San Diego State University. Amanda is client centered, grounded in attachment theory, and has a large training in play-based modalities. Amanda is currently taking courses to be registered as a play therapist. Amanda uses play therapy to help her client’s express their needs and help resolve their challenges. Amanda’s work includes helping children and teens that need assistance with anxiety, coping skills, managing ADHD, school-based issues, special needs, challenging behaviors, self-esteem, anger management, and trauma. She has spent many years as a preschool teacher and is aware of the social expectations many children are currently facing. With a large background in creative movement, she believes in the power of a multi-sensory approach. She loves to use imagination, dance, and music as a way to engage and help enhance social/emotional development. Amanda is friendly, down-to-earth and loves to bring fun and playfulness into her sessions. Treating the therapy room as a safe space where the client can fully express themselves. Amanda looks forward to supporting your child, teen, and family. 

Callie Khoury, APCC


Associate Professional Clinical Counselor Supervised by Matti Millman, LMFT

Callie is an Associate Professional Clinical Counselor with her Master’s degree in Clinical Mental Health Counseling from the University of San Diego. She has extensive experience providing mental health support to diverse populations, including providing therapy to teens, adolescents, children and families throughout San Diego County. Callie has experience working with clients facing a variety of difficulties including anxiety, depression, trauma, psychosis, suicidality, self-harm, obsessive-compulsive disorders and adjustment issues. Callie believes that in order to change, we have to first be accepted exactly as we are. For this reason, Callie creates a nonjudgmental, safe environment in therapy where the client can explore and better understand themselves, their relationships, their goals, and how to achieve them. Callie’s orientation as a therapist is person-centered, and she also has experience and training in play therapy, CBT, DBT and mindfulness interventions. Callie additionally uses a trauma-informed lens, always considering the widespread impact of trauma on a client’s current functioning. Callie also adopts a multicultural approach with clients in order to bring the client’s unique cultural background into the therapy room. Callie is passionate about her work as a therapist and is grateful to be able to use her experience and expertise to help clients reach their goals and live the lives they seek.

Mattilyn Millman, LMFT


Licensed Marriage and Family Therapist, Clinical Supervisor and Clinical Manager

Matti is a Licensed Marriage and Family Therapist (LMFT) in the state of California. She received her Masters in Marriage and Family Therapy from National University. With a history of working as an elementary school teacher, with youth and families involved in the juvenile justice system, and with youth in PHP and IOP care Matti has experience both in short and long term care. Matti believes in a trauma informed approach and has been certified as a Brief Strategic Family Therapist, and is currently being trained in EMDR with a focus on trauma. She has a passion for working with families and improving their relationships with each other through communication. Matti specializes in family work, abuse, trauma, substance abuse, feelings of sadness, working with adolescents and children, and has personal experience with the military community. Call 619-549-0329 ext 0 to check current availability or click here to learn more about our La Mesa team!

La Mesa Leadership Team

Clinical Manager & Supervisor: Mattilyn Millman, LMFT 

La Mesa Location

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