PHP in Los Angeles

Alter Behavioral Health offers a structured Partial Hospitalization Program for adults managing mental health, trauma, and substance use disorders. PHP provides intensive outpatient support while allowing participants to maintain greater connection with daily life than residential care. With evidence-based therapies, individualized planning, and access to Southern California treatment locations, the program supports meaningful progress and continued recovery.

Therapist meeting with an adult client in a calm behavioral health treatment setting

Our PHP Partial Hospitalization Services

Structured behavioral health support using individualized, evidence-based therapies for adults with complex mental health and co-occurring needs.

Mental Health PHP

Intensive outpatient treatment for adults experiencing conditions such as depression, anxiety, bipolar disorder, schizophrenia, or borderline personality disorder, with care tailored to individual clinical needs.

Trauma-Focused Care

Individualized treatment for trauma and PTSD using evidence-based approaches that may include EMDR, CBT, DBT, and other therapeutic modalities selected with the care team.

Dual Diagnosis Support

Integrated PHP care for adults navigating substance use alongside mental health conditions, addressing co-occurring needs through therapy, clinical planning, and family participation.

Personalized Clinical Care

Intensive Support With Everyday Flexibility

Alter Behavioral Health’s PHP offers intensive outpatient care for adults who need substantial therapeutic support without necessarily entering residential treatment. Care may address depression, anxiety, bipolar disorder, trauma, PTSD, schizophrenia, borderline personality disorder, and substance abuse. Evidence-based modalities such as CBT, DBT, EMDR, and family therapy are tailored to each person’s goals within Alter’s Southern California continuum of care.

Adult behavioral health client participating in a supportive therapy session
Support For Recovery

Stories Of Transformation

Discover how compassionate, evidence-based behavioral health care can support lasting change for clients and families.

"My experience was an amazing one. The staff were absolutely amazing. I couldn't give enough stars."

Maria D.

"Alter helped me get through one of the toughest times of my life. I want to say thank you to the treatment team for going above and beyond every day!"

Burgess W.
The Alter Difference

Why Choose Alter Behavioral Health?

A client-centered approach combining clinical expertise, compassionate support, and a full continuum of care.

Evidence-Based

Treatment incorporates CBT, DBT, EMDR, family therapy, and other individualized clinical approaches.

Whole-Person Care

Care addresses mental health, substance use, trauma, and personal recovery goals together.

Full Continuum

Multiple care levels support transitions from residential treatment through PHP, IOP, outpatient, and aftercare.

Clinical Support

Psychiatrists and doctorate- or master’s-level clinicians provide personalized care across Southern California.

Meet The Alter Team

Compassionate clinicians support personalized behavioral health treatment and recovery.

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 does PHP stand for in mental health services?

PHP stands for Partial Hospitalization Program. In mental health services, PHP is an intensive outpatient level of care for people who need substantial therapeutic and clinical support but may not require residential treatment. Alter Behavioral Health’s PHP serves adults with mental health, trauma, and substance use disorders through individualized treatment using modalities such as CBT, DBT, EMDR, and family therapy.

How long do people usually stay in PHP?

Who can benefit from a Partial Hospitalization Program?

What therapies are used in Alter Behavioral Health’s PHP?

Is PHP different from residential mental health treatment?

Does PHP treat co-occurring substance use and mental health concerns?

Can insurance help cover PHP treatment?

How do I begin PHP enrollment with Alter Behavioral Health?

Have More Questions About PHP?

Speak with Alter Behavioral Health about treatment options and enrollment.

Recognized & Accredited

Awards and Recognition

The Joint Commission Gold Seal of Approval accreditation

Gold Seal of Approval accreditation from The Joint Commission

Accreditation listed by Alter Behavioral Health.

Care Predictor Certified Treatment Facility recognition

Care Predictor Certified Treatment Facility

Certification listed among Alter Behavioral Health recognitions.

The Joint Commission National Quality Approval recognition

The Joint Commission National Quality Approval

Recognition listed by Alter Behavioral Health.

DHCS recognition and certification

DHCS recognition and certification

Recognition and certification listed by Alter Behavioral Health.

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

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

Nomination listed by Alter Behavioral Health.

Take The Next Step Toward Support

Contact Alter Behavioral Health to discuss PHP, insurance verification, and personalized treatment options.

Contact Us Today

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