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Meet Our Team

Compassion. Collaboration. Care.

Our team brings together diverse specialties in mental health, neuropsychology, assessment, and wellness coaching to support the whole person. We combine evidence‑based care with a warm, culturally sensitive approach, empowering individuals and families to heal, grow, and strengthen their mental, physical, and emotional wellbeing. Through partnership, compassion, and expertise, we help each person move toward meaningful and lasting wellness.

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Clinical Health & Neuropsychologist

Tammy A. Ouellette, PsyD

Areas Of Focus: Clinical Health & Neuropsychologist with 20+ years of experience providing neuropsychological and bariatric evaluations, medical‑integrated psychotherapy, and mind‑body health education for adults

Serves: In Person (Placentia Location), Video Health

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Licensed Clinical Social Worker

Andrea Heitz, LCSW

Areas Of Focus: 

Over 25 years of experience specializing in trauma, addiction, and codependency, using CBT, mindfulness, and EMDR to support lasting change

Serves: Video Health

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Licensed Marriage & Family Therapist

Darlene Valdez-Olguin, LMFT, PhD

Areas Of Focus: Experienced therapist specializing in grief, eating disorders, mood disorders, and dementia care, offering warm, evidence‑based support grounded in CBT and humanistic therapy 

Serves: In Person (Fullerton Location)

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Associate Clinical Social Worker

Elsa Torres, MSW, PsyD

Areas Of Focus:  Specialist in psychological and neuropsychological evaluations for autism, ADHD, and learning disorders, providing trauma‑informed holistic care, bilingual in English and Spanish

Serves: In Person (Placentia Location), Video Health

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Licensed Clinical Social Worker

Denise Yoshihara, LCSW

Areas Of Focus: ​​

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Serves: In Person (Placentia Location)

                                                                                                                                                         

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Licensed Marriage & Family Therapist

Kayla Lim, LMFT

Areas Of Focus: Supports children, teens, adults, and families with depression, anxiety, trauma, ADHD, and life stressors, using DBT, ACT, CBT, and person‑centered therapy in a culturally sensitive, empowering environment 

Serves: In Person (Placentia Location), Video Health

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Associate Clinical Social Worker

Mayra Alvarado, MSW

Areas Of Focus: Supports clients from all walks of life with anxiety, depression, trauma, and life transitions in a holistic, culturally sensitive, judgment‑free environment; bilingual in English and Spanish

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Serves: Video Health

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Associate Marriage & Family Therapist

Anissa Ayala, MA

Areas Of Focus: Creates safety and trust for clients who may feel unsure about starting therapy. Care is trauma‑informed and culturally responsive, with a passion for supporting clients exploring identity and change.

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Serves: In Person (Placentia Location), Video Health

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Health & Wellness Coach

Kaylea Philobos, MS, NBC-HWC

Areas Of Focus: Supports individuals through coaching in improving mental and physical wellbeing through initiation and follow-through of behavior change, mindfulness, stress management, sustainable lifestyle practices, and performance enhancement for youth athletes.​

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Serves: Video Health

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Associate Marriage & Family Therapist

Beverly Osaah, MA

Areas Of Focus: Creates a supportive, no‑judgment space for individuals and families working through depression, anxiety, anger, parenting challenges, and personal growth, helping clients become the best versions of themselves.

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Serves: Video Health

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Licensed Clinical Social Worker

Sofia Martinez, LCSW

​Areas Of Focus: Provides a supportive, non-judgmental approach to help individuals navigate difficult challenges, build on their strengths, and find greater balance and peace of mind.

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Serves: Video Health

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Associate Marriage & Family Therapist

Sarah Lower, AMFT

Areas Of Focus: Utilizes a collaborative, strengths-based approach that incorporates creativity and mindfulness to help clients better understand themselves, navigate challenges, and create meaningful change.

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Serves: In Person (Placentia Location), Video Health

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Licensed Marriage & Family Therapist

Kimson Johnston, LMFT

Areas of Focus:

Serves: In Person (Fullerton Location)

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Associate Marriage & Family Therapist

Laurel Speer, MA

Areas of Focus: Supports navigating trauma, grief, relational challenges, and life transitions. Her work is relational, somatic, and trauma‑informed, with an emphasis on presence, pacing, and the therapeutic relationship.

Serves: In Person (Placentia Location), Video Health

SUPPORT STAFF

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Office Manager

Brandi Galland

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Business Consultant

Alyssa Harman, MBA

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Healthcare Virtual Assistant

Karleen Reyes

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Patient Coordinator

Jada Compton

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