Short-Term Residential Mental Health Facilities

Short-term residential mental health facilities provide structured, compassionate support for adults navigating complex psychiatric, trauma, substance use, or co-occurring disorders. Alter Behavioral Health offers personalized residential care within a broader continuum of treatment, using evidence-based therapies, whole-person support, family participation, and individualized planning to help clients stabilize, build skills, and move toward lasting recovery.

Comfortable residential mental health treatment setting with clinician and adult client speaking

Our Residential Mental Health Services

Comprehensive residential and step-down care for adults with mental health, trauma, addiction, and co-occurring treatment needs.

Residential Treatment

Residential Mental Health Treatment provides structured inpatient care for adults experiencing psychiatric, trauma, substance use, or co-occurring disorders, with personalized plans, evidence-based therapies, family participation, and supportive living environments.

Crisis Stabilization

Crisis Stabilization and Intervention offers acute support for adults experiencing mental health crises, including clinical assessment, risk assessment, safety planning, psychiatric stabilization, and coordinated next-step care.

Partial Hospitalization

Partial Hospitalization Program services support adults who need intensive treatment while transitioning from residential or crisis care, using therapies such as CBT, DBT, EMDR, and family sessions.

Intensive Outpatient

Intensive Outpatient Program care provides structured mental health and substance use treatment at a lower level of care, helping clients continue therapeutic progress alongside daily responsibilities.

Dual Diagnosis Treatment

Dual-diagnosis treatment addresses substance use alongside mental health conditions, integrating clinical therapies, family participation, mindfulness-based approaches, and care across multiple treatment levels.

Aftercare Support

Aftercare planning, local support groups, and recovery resources help clients practice life skills, transition toward everyday routines, and pursue sustained stability beyond discharge.

Whole-Person Treatment

Personalized Care for Lasting Recovery

Alter Behavioral Health provides short-term residential mental health care for adults who need structured support, clinical expertise, and a compassionate environment. Treatment may address depression, anxiety, bipolar disorder, schizophrenia, borderline personality disorder, ADHD, trauma, PTSD, addiction, and co-occurring concerns. Individualized plans combine evidence-based therapies, holistic supports, family participation, and transition planning within a full continuum of care.

Clinician providing compassionate residential mental health support to an adult client
Compassionate Clinical Care

Recovery Starts Here

Discover a personalized path from stabilization and treatment toward improved functioning, recovery, and sustained stability.

"Alter has been the BEST experience in our son's 7-year battle against Bipolar 1! The staff actually cares about their patients and family members. They truly understand the difference between stable, safe, and baseline. The staff was a lifesaver and also kept us informed, being extremely timely in responding to..."

Paul B.
The Alter Difference

Why Choose Alter Behavioral Health?

A comprehensive care model designed around clinical needs, personal dignity, and meaningful recovery.

Full Continuum

Residential, crisis, PHP, IOP, outpatient, transitional, and therapeutic support services connect care across changing needs.

Personalized Plans

Individualized, evidence-based treatment is overseen by psychiatrists and doctorate- or master’s-level clinicians.

24/7 Support

Around-the-clock clinical and admissions support helps clients and families navigate urgent behavioral health needs.

Whole-Person Care

Trauma-informed therapies and holistic supports address mental health, addiction, relationships, and everyday functioning.

Meet The Care Team

Experienced leaders guide compassionate, evidence-based 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 are short-term residential mental health facilities?

Short-term residential mental health facilities provide structured, live-in behavioral health treatment for adults who need more support than outpatient care can provide. Services may include clinical assessment, psychiatric care, individual and group therapy, family participation, safety planning, life-skills support, and discharge planning. Treatment can address mental health disorders, trauma, substance use, and co-occurring conditions within a supportive residential setting.

Who can benefit from residential mental health treatment?

What conditions does Alter Behavioral Health treat?

How is residential treatment different from PHP or IOP?

Does residential treatment include family participation?

Does Alter Behavioral Health offer dual-diagnosis treatment?

How can I begin the admissions process?

Does Alter Behavioral Health verify insurance?

Have More Treatment Questions?

Speak with the admissions team about care options for yourself or a loved one.

Our Service Areas

Alter Behavioral Health supports clients across Southern California and accepts individuals from across the nation.

Need Help Finding The Right Facility?

Contact admissions to discuss available programs, locations, and care pathways.

Recognized & Accredited

Awards and Recognition

The Joint Commission Gold Seal of Approval accreditation

Gold Seal of Approval Accreditation

Accreditation from The Joint Commission.

Care Predictor Certified Treatment Facility recognition

Care Predictor Certified Treatment Facility

Recognition as a Care Predictor Certified Treatment Facility.

The Joint Commission National Quality Approval recognition

The Joint Commission National Quality Approval

National quality approval from The Joint Commission.

DHCS recognition and certification

DHCS Recognition and Certification

Recognition and certification from DHCS.

Best Residential Mental Health Treatment Center nomination

Best Residential Mental Health Treatment Center Nomination

Nominated in California in 2024.

Start A Conversation About Care

Share your questions with the admissions team and learn about appropriate treatment options, locations, and next steps.

Contact Us Today

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