#1 Mental Health Treatment Center Southern California
Personalized care designed for lasting healing, recovery, and real-life transformation.
- Residential & outpatient mental health programs
- Trauma-focused therapy (EMDR, CBT)
- Psychiatric care & medication management
- 24/7 compassionate support
“I owe my life to Quest Behavioral Health I was struggling with addiction for years and didn’t think there was any way out. I checked into Quest Behavioral Health and got the help I desperately needed.” – Andrew
We provide structured, evidence-based care in a safe, supportive environment for long-term healing.
Call now:
*All communications with us are HIPAA Compliant and 100% Confidential
Tour Our Beautiful High-End Facility
We help individuals overcome trauma, anxiety, depression, and complex mental health challenges through personalized care that fits real life.
Three Steps to Recovery
1
Free Assessment
Speak confidentially with our admissions team.
2
Personalized Plan
Get a tailored treatment program based on your needs.
3
Begin Treatment
Start healing in a structured, supportive environment.
We Care About The Outcomes
Our Proven Approach & Unique Therapies
Your personalized treatment program at our Lancaster Rehab Centers may include:
- Cognitive Behavioral Therapy
- Dialectical Behavioral Therapy
- Motivational Enhancement Therapy
- Integrative Family Program
- Relapse Prevention Education
- Nutritional Therapy
- Mindfulness
- Psychodrama Therapy
- Community Support Meetings
- Art Therapy
- Massage Therapy (may be offered)
- Acupuncture Therapy (may be offered)
- Chiropractic Care (may be offered)
- Individual & Group Therapy
- Holistic Therapies
- Evidence-Based Approaches
- 12-Step Facilitation
- Educational & Vocational Services
- 24/7 On-site Nursing Staff
- Addiction-Focused Physicians
- On-Staff Psychiatrist
- Gourmet Chef with Daily Prepared Meals
- Yoga and Meditation
- Gym Time and Fitness Training
Facilities Designed for Your Comfort
A Safe & Supportive Healing Environment
Private, comfortable living spaces
Designed to promote rest, privacy, and a sense of safety throughout your recovery.
Calm and structured setting
A peaceful environment with consistent routines that support focus, stability, and healing.
Group therapy & community support
Build meaningful connections and gain strength through shared experiences and guided sessions.
24/7 clinical supervision
Round-the-clock care from experienced professionals to ensure safety and continuous support.
A World-Class Clinical Team
Our licensed clinicians, medical professionals, therapists, and support staff bring extensive experience and genuine compassion to every client we serve. We take a whole-person approach to treatment—addressing substance use, mental health, and underlying challenges through individualized care plans that support physical, emotional, and psychological healing.
Marine Guloyan, LCSW
Clinical Director
Latacha Dennis
Chef
Kim Martinez
Case Manager
Alexis Garcia
Lead LVN
Excellence In Behavioral Healthcare
Full Continuum of Mental Health Care
Assessment & diagnosis
We begin with a comprehensive mental health assessment to better understand each individual’s emotional, psychological, and behavioral needs. This helps our clinical team create a personalized treatment plan tailored to long-term healing and stability.
Residential treatment
Our residential treatment program provides a structured and supportive environment where individuals can focus fully on recovery while receiving 24/7 clinical and psychiatric support.
Trauma & Dual Diagnosis Care
We help individuals address underlying trauma, co-occurring mental health conditions, anxiety, depression, and emotional challenges through evidence-based and trauma-informed therapies.
Aftercare & long-term support
Recovery continues beyond treatment. We help individuals build healthy routines, coping strategies, and ongoing support systems to encourage long-term wellness and continued personal growth.
Why Choose Quest Behavioral Health
Personalized, Whole-Person
Care
Every client receives an individualized treatment plan that addresses substance use, mental health, and underlying challenges—because recovery isn’t one-size-fits-all.
Experienced, Compassionate Clinical Team
Our licensed clinicians and support staff bring deep expertise and genuine care, creating a safe, supportive environment where healing can begin.
Proven Programs in a Luxury
Setting
From detox support to residential and aftercare, Quest Behavioral Health offers evidence-based treatment in a structured environment designed to support long-term recovery.
Real People, Real Results
Chris
Chris came to us addicted to opiates, feeling hopeless after multiple attempts to stop using. His family supported his decision to got to treatment. He has been clean for 3 years since his treatment.
Renee
Renee’s alcohol abuse spiraled out of control when she lost her son. She called us and asked if we could help her get sober. After placing her in treatment 4 years ago, she has remained sober and now has full custody of her son.
John
John was abusing meth, heroin, and alcohol and hadn’t achieved more than 24hrs clean in 9 years. Our specialists helped him get placed in a medically assisted detox with treatment. He is now 5 years clean and sober.
Client Reviews & Success Stories
We deeply appreciate the feedback from our clients and take pride in their recovery journeys. Seeing the positive impact our care has on individuals and their families is what drives our team every day.
Seeking Treatment?
Verify Your Insurance
Let us help you get started on your recovery. We make the process easy, supportive, and confidential.
- Fast approval process
- Flexible payment options
- Dedicated admissions support
We are here to help – call now to speak with our trained experts.
All of our friendly treatment specialists are trained mental health counselors and are standing by to give you compassionate support and guidance to begin your journey into treatment.
Sometimes talking over the phone is easier. We’re here to listen to your questions and help you get answers.
Call us at:
*All communications with us are HIPAA Compliant and 100% Confidential.
Verify Your Insurance to Check Coverage for Treatment
Please complete the information for the person seeking treatment. One of our dedicated team members will contact you immediately to go over your options.