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Ms. Lillie Avetisyan-Harvey, Therapist
Therapist in Costa Mesa, California

Ms. Lillie Avetisyan-Harvey, Therapist

Specialties:
First responder stress Grief & loss Military & veteran +32
Provider Gender: Female (She/Her)
Ages Served: 22-75+
Appointments: In-office and Telehealth
Manages Medications: No, provides therapy only
Accepts Insurance: Yes - View accepted plans

Lillie Avetisyan Harvey, LCSW, provides compassionate and effective mental health care to individuals and families across California. She supports children, adolescents, and adults in navigating life’s challenges through personalized therapy tailored to each individual’s needs. Lillie offers individual therapy, couples therapy, family therapy, and group therapy, creating a safe and collaborative space where clients can explore their emotions, develop coping strategies, and build resilience.

Lillie is particularly passionate about treating PTSD, trauma, substance use disorders, anxiety, and depression. She understands how these challenges can impact daily life and works closely with clients to uncover underlying causes while developing personalized treatment plans. Using evidence-based approaches like Cognitive Behavioral Therapy (CBT), Dialectical Behavior Therapy (DBT), and Eye Movement Desensitization and Reprocessing (EMDR), Lillie helps clients build healthy coping skills and regain a sense of control.

In addition to her work with individuals, Lillie has specialized experience supporting first responders, military personnel, and veterans, understanding the unique stressors they face. She also serves children and adolescents, offering age-appropriate therapy to address emotional and behavioral challenges. Lillie is fluent in Armenian and Spanish, ensuring culturally sensitive care for diverse communities.

Outside of her professional life, Lillie is an avid runner, having participated in the Los Angeles and Malibu marathons, numerous half-marathons, 10Ks, and 5Ks. She also loves reading both fiction and nonfiction, often finishing one to two books each month, which broadens her perspective and enriches her work as a therapist.

Provider Introduction

Types of Care & Ages Served

Areas of Focus

Individual Therapy

Get help addressing challenges and improve well-being with a clinician's guidance.

  • First responder stress
  • Grief & loss
  • Military & veteran
  • Alcohol use
  • Anger issues
  • Anxiety
  • Bipolar Disorder
  • Career & relationships (mid-life)
  • Career & work issues
  • Chronic pain-related issues
  • Depression/feeling down
  • Detachment/disconnection
  • Dissociative disorders
  • Domestic violence & abuse
  • Drug/substance use
  • Emotional abuse
  • Empty nesters
  • Gambling
  • Gender identity
  • General relationship issues
  • Hoarding
  • Intense mood changes
  • LGBTQ+
  • Marital stress or divorce
  • Other addictive behaviors
  • Panic attacks
  • Parenthood
  • Pornography/sexual behaviors
  • Premarital counseling
  • Self-esteem
  • Sexual trauma
  • Social injustice
  • Stress management
  • Trauma & PTSD
  • Video game/internet

Languages

  • Armenian
  • English

Education

  • University of Southern California

  • California State University - Northridge

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Frequently Asked
Questions

Please use our online form to schedule an appointment with Ms. Lillie Avetisyan-Harvey. You can also call 925-282-1778 to have someone assist you.

See what our patients are saying about Lillie Avetisyan-Harvey

Therapists and psychiatrists are attentive and kind. They care about you and are responsive to your needs. They are caring and they are helpful. I highly recommend.
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Michele Kalis (Muneera K.

Michele Kalis (Muneera K.

Sep 26, 2025
Google Google
Very pleased with Dr Ines attention to root cause and long term planning.
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Stephen S.

Stephen S.

Oct 07, 2025
Google Google
Great! Very knowledgeable and patient and answered all my questions
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Anonymous

Anonymous

Aug 04, 2025
WebMD WebMD
Excellent experience
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Andi C.

Andi C.

Jan 27, 2026
Google Google
Excellent experience
Read Full Review
Kevin M.

Kevin M.

Jan 21, 2026
Google Google
Excellent experience
Read Full Review
Kasi S.

Kasi S.

Apr 13, 2025
Google Google
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Patient Review Disclaimer

The testimonials and reviews shared on our platforms reflect the personal experiences and opinions of individuals voluntarily shared on third-party sites (e.g., Google). These reviews are voluntarily provided and are not compensated, solicited, or endorsed by LifeStance Health.

Important Notes:

  • Reviews do not represent the views of LifeStance Health, Inc., its clinicians, or affiliates
  • Individual results may vary – testimonials are not guarantees of similar outcomes
  • We do not independently verify the clinical accuracy or authenticity of statements
  • Clinician qualifications, expertise, and fit for your specific needs should be assessed through direct consultation
Ms. Lillie Avetisyan-Harvey, Therapist

Ms. Lillie Avetisyan-Harvey

Therapist in Costa Mesa, California

New patient?

View Availability

Already have an appointment?

Video visit waiting room Join Now
Existing patient portal Sign in