Dual Diagnosis PHP Treatment Program

Alter Behavioral Health provides structured Partial Hospitalization Program care for adults managing co-occurring mental health and substance use disorders. Through evidence-based therapies such as CBT, DBT, EMDR, and family therapy, clients receive individualized support while practicing recovery skills and building stability. Programs are available throughout Southern California, with consultation and enrollment support for clients and families nationwide.

Therapist speaking with an adult client during a dual diagnosis treatment session

Our Dual Diagnosis PHP Services

Structured behavioral health services supporting adults with co-occurring mental health and substance use disorders.

PHP Treatment

Partial Hospitalization Program care provides intensive outpatient support for adults managing mental health, trauma, and substance use disorders through individualized, evidence-based treatment.

IOP Treatment

Intensive Outpatient Program care offers structured treatment at a lower level of care than PHP or residential services, supporting continued progress through therapy and family sessions.

Dual Diagnosis Care

Specialized treatment addresses addiction alongside conditions such as depression, anxiety, bipolar disorder, trauma, PTSD, and other psychiatric concerns within a coordinated care model.

Whole-Person Treatment

Integrated Care For Co-Occurring Disorders

Dual diagnosis PHP care connects mental health and substance use treatment instead of addressing either concern in isolation. Alter Behavioral Health develops individualized plans using CBT, DBT, EMDR, family therapy, mindfulness-based approaches, and other evidence-based modalities. Clients can receive structured support while working toward improved functioning, sustained stability, and a gradual transition back to everyday life.

Adult client participating in a therapy group for co-occurring disorders
Support For Lasting Change

Recovery In Progress

Personalized treatment helps clients and families pursue stability, recovery, and healthier everyday functioning.

"Alter is an amazing place with amazing clinical staff and treatment professionals! You guys are a lifesaver!"

Ron S.
The Alter Difference

Why Choose Alter Behavioral Health?

Compassionate, evidence-based care supports both mental health and substance use recovery.

Integrated Care

Mental health, addiction, trauma, and co-occurring disorders are addressed within one coordinated treatment model.

Evidence-Based

CBT, DBT, EMDR, family therapy, and holistic supports inform individualized treatment plans.

Full Continuum

Multiple levels of care help Southern California clients move through treatment as their needs evolve.

24/7 Support

Clinical and admissions support is available around the clock for clients, families, and referring providers.

Meet The Alter Team

Experienced leadership guides compassionate, individualized behavioral health treatment.

Portrait of Michael Castanon, Founder and CEO of Alter Behavioral Health

Michael Castanon

Founder and CEO

Michael Castanon is the Founder and CEO of Alter Behavioral Health, a Southern California-based organization dedicated to advancing the future of mental health care. With a vision rooted in combining scientific rigor, genuine compassion, and lasting transformation, Michael has built Alter Behavioral Health into a comprehensive provider offering a full continuum of care, including residential treatment, partial hospitalization, intensive outpatient, and outpatient services. He is committed to ensuring that every client receives individualized, evidence-based treatment delivered by skilled psychiatrists and clinicians. Under his leadership, the organization has earned The Joint Commission's Gold Seal of Approval and recognition as a Care Predictor Certified Treatment Facility. Michael's mission is to empower individuals and families across Southern California and nationwide to heal, thrive, and achieve sustained recovery through innovative, whole-person care.

Frequently Asked Questions

What is PHP in mental healthcare?

A Partial Hospitalization Program is an intensive outpatient level of behavioral health care for people who need structured treatment but may not require residential services. PHP can include individual and group therapy, psychiatric support, family sessions, risk assessment, and evidence-based modalities such as CBT, DBT, and EMDR. Alter Behavioral Health’s PHP supports adults with mental health, trauma, substance use, and co-occurring concerns.

How long do people stay in PHP?

Who is a candidate for dual diagnosis PHP treatment?

What therapies are used in dual diagnosis PHP?

Can PHP help with substance use and mental health together?

Is PHP residential treatment?

Does Alter Behavioral Health accept insurance for PHP?

Where is dual diagnosis PHP treatment available?

Have More Treatment Questions?

Speak with the admissions team about PHP options and next steps.

Southern California Service Areas

Alter Behavioral Health provides behavioral health treatment across Southern California and supports clients nationwide.

Southern California

Service Area

24/7 Available

Admissions Support

Nationwide Support

Care Coverage

Is Your Area Served?

Contact admissions to discuss locations, availability, and PHP enrollment.

Recognized Credentials

Awards and Recognition

Nominated for Best Residential Mental Health Treatment Center in California, 2024

Nominated for Best Residential Mental Health Treatment Center in California, 2024

Recognition nomination stated by Alter Behavioral Health.

Care Predictor Certified Treatment Facility recognition

Care Predictor Certified Treatment Facility

Certification associated with Alter Behavioral Health’s Care Predictor approach.

The Joint Commission National Quality Approval

The Joint Commission National Quality Approval

Named quality approval listed by Alter Behavioral Health.

DHCS recognition and certification

DHCS recognition and certification

Recognition and certification listed by Alter Behavioral Health.

Start Your Dual Diagnosis Care Consultation

Contact Alter Behavioral Health to discuss PHP availability, insurance verification, private pay options, and enrollment.

Contact Us Today

For immediate assistance, feel free to give us a direct call at (866) 248-9285.