Cornerstone of Southern California, Celebrating 40 Years
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At Cornerstone of Southern California, we take a comprehensive approach to mental health and dual diagnosis treatment. As a recognized dual diagnosis facility, we address co-occurring mental health and addiction disorders together, ensuring that both conditions receive the attention they need for lasting recovery.

Our commitment goes beyond traditional mental health or addiction treatments. We know from experience that a continuous and supportive focus on the mind, body, and spirit creates a stronger foundation for lasting recovery.

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Why Choose a Dual Diagnosis Mental Health Treatment Center?

At its core, dual diagnosis refers to the co-existence of a mental health disorder alongside a substance use disorder. This condition is extremely common. Many individuals battling addiction are also facing underlying and unresolved mental health challenges.

Treating Co-Occurring Disorders For Long-Term Recovery

Addressing only one facet of this intertwined relationship can lead to an incomplete recovery process. By acknowledging and treating both mental health disorders and addiction disorders, a holistic pathway to healing emerges. This comprehensive approach ensures that underlying triggers and co-existing issues are identified and managed, paving a clear path for a more resilient long-term recovery journey.

Improving Mental Health & Addiction Treatment Outcomes

Opting for Cornerstone’s dual diagnosis treatment offers several advantages. Our experienced team is specially trained in identifying and treating co-occurring disorders, ensuring every individual receives personalized care. With safe and comfortable treatment facilities and a nurturing environment, we provide unparalleled treatment and support to all our clients. We pride ourselves in helping clients navigate the complexities of dual diagnosis while laying the groundwork for long-lasting health and sobriety.

Evidence-Based Treatment Since 1984

Our modern treatment approach is supported by over 40 years of experience. The Cornerstone approach focuses on treating mental health and addiction together, which improves post-treatment outcomes and has better long-term recovery results.

With our integrated mental health and addiction treatment strategy, clients receive comprehensive mental health and addiction recovery support.

Call Today (714) 547-5375

What Clients Say About Cornerstone

Collin GibellinoCollin Gibellino
23:05 03 Feb 25
Maria, Diane, Dr Herring, Ashley, and all the nurses are top notch. I couldn’t be happier with everyone and everything here. My experience has been absolutely life changing. Love everyone here. 10 stars if I could and if u waste your time going anywhere else you’re a fool.
David ZailerDavid Zailer
21:33 23 Nov 24
I came to Cornerstone in 1999 overwhelmed and angry. My health was fragile due to my alcohol and drug use and I had legal troubles because of drugs.I wound up in Cornerstone’s Alternative Sentencing Program. I had two Case Managers while I was there: Robert M and Crystal O. They did their job quite differently and yet both were powerfully effective.Fast forward twenty-five years: I continue the sobriety Cornerstone gave me through the strong boundaries and support of their program and staff. I also now work ‘in the field’ of addiction recovery as an author and communicator.As a professional, I enthusiastically recommend all of Cornerstone’s programs, with special mention of the integrity of their Alternative Sentencing Program headed by Dr. Stephanie Herring; a renowned leader in this life-saving work.David Zailer — Author of OUR JOURNEY HOME, WHEN LOST MEN COME HOME, and DEATH OF A FISHERMAN. Founder of Operation integrity
Kimberly LishKimberly Lish
14:59 03 Nov 24
We are so happy to hear that Doctor Herring has returned to Cornerstone. Our attorney referred us to her 13 years ago. We are eternally grateful for her and Cornerstone and their Alternative sentencing program.She was there for us in our scariest moments and stood by our family through it all! She was truly a guardian angel and has helped thousands of people and their families.Dr. Herring continues to stay in contact with us and shows us nothing but genuine love and support! We LOVE her and are so grateful for her support through all the court proceedings and her heart and compassion. She has become part of our family!❤️We’d recommend Cornerstone to anyone that needs substance abuse and mental health treatment who have legal charges.
Tim O'FLAHERTYTim O’FLAHERTY
01:50 30 Oct 24
My experience at Cornerstone was amazing. I was committed to changing myself, and they gave me all the tools I needed to do it. You will meet with the Lead Doctor and the Head Nurse, and they will help you get through those first few days of detox. I really needed them. The entire staff is very professional and kind (Maria💚). The facilities are spotless and the food is really good. You will spend time in groups getting to know people who are going through exactly what you are.They really sincerely care about you.And if you’re serious about getting your life changed, I recommend Cornerstone.Tim O’Flaherty
David NDavid N
20:26 17 Sep 24
Staff members are super nice and friendly. Dr. Stone does his best to keep you comfortable thru detox. Highly recommend this place. I called 4th of July and left a message, they text me back right away that same day.
Ed Hernandez SilvaEd Hernandez Silva
00:59 26 Jul 24
Saved me by pulling me out of the cycle. I was in a very very bad place. They Uber’d me about 60 miles and I’m now 6 days from 90. I’m so much happier now. Dr stone and his staff truly care. I thank God everyday for this organization. If you can’t stop, are alone, feel like no one loves you; call them please. After hours calls will forward to someone who will help. They answer their messages too. That’s how I did it at 0330 hrs.
Patrick FraserPatrick Fraser
10:25 09 Jul 24
1228 days clean from Painkillers thanks to cornerstone. I left another rehab facility after 28 days with little to no knowledge of PAWS. I soon relapsed. I stayed at cornerstone for a month and did 3 more months outpatient meetings. They kept me on the medication needed to stay off pills and I was able to see my therapist Dr Tanagho (which I still do to this day). When I felt strong enough to come off Suboxone I got put on Sublocade injections and have felt no withdrawals. Raul helped me get on disability the whole 4 months and i didn’t have to worry about paying bills. I was able to focus on taking back control of my life.The Food was awesome. I was able to quit my job that was driving me nuts and finally follow my dream of coaching full time in the sport I love. I have no doubt Cornerstone saved my life, I have no doubt I’d be dead if it wasn’t for them. Thanks to Titus, Maria, Diane, my counselor Raul, Jennifer at intake, all the drivers whose name I forgot. God bless you all, 1228 days straight and I’m not looking back. I can’t recommended this place anymore, if your sick of it all and ready to move on, Go to Cornerstone.
JONATHAN MACIASJONATHAN MACIAS
23:16 25 Jun 24
My experience here at Corner Stone has honestly been great. I’ve been to one other treatment center, but nothing compares to the focus and determination that these counselors and people put into us. I’m very fortunate to have come through this program and met the people that I have met.My suggestion for anybody that is planning on coming here is to do this for yourself and not no one else because when you fix whatever you have going on mentally or emotionally and get the tools that will help you succeed in turbulent times you will be successful not only one day at a time But you will also have a beautiful journey up ahead.-Difficult roads lead to beautiful beginnings-
King TaylorKing Taylor
16:08 25 Jun 24
My experience at CornerStone has been really great. Not only all the staff members like Emily, a BCH TECH, or my case manager Maria Carter who really cares, I’ve met some very Ginuwine people who are serious about helping you regain control over your life and away from drugs and alcohol.
Mike LourosMike Louros
02:43 14 May 24
Cornerstone helped me turn my life around. All the staff were amazing, always helpful and supportive of my goals. Thank you cornerstone for everything! I truly appreciate you all so much.
ChooseMelissa EvansChooseMelissa Evans
23:26 13 May 24
I received “outstanding” treatment during my time at Cornerstone Rehab. The knowledge and coping skills I have gained will definitely keep me on track throughout my sobriety. The staff from the Rehab Techs, Nurses, Case Manager(Maria Carter), Drivers and my House Manager all the way to the management team were always very professional and willing to assist with all of my needs.
Drew SutterDrew Sutter
19:15 04 Apr 24
I am extremely grateful to the entire staff at Cornerstone. Case managers are always available to listen, and help you adapt. The doctors and nurses are very precise and safe at every stage of recovery. The techs and site managers are always available to make you comfortable and to answer questions.I came in very uncomfortable, as expected. But I had all of my questions answered, given the tour, shown the schedule, and introduced to people and other elements, in line with my comfort level.Aside from the staff, they allow you to live with and establish co-dependency with other patients. Some with very similar problems, and some with a different set. Group sessions, activities, and living together all come down to one commonality though – finding the path and the strength to recovery.A very special shout to Case Manager, Maria Carter too – I have never known anyone who exudes hope and positive energy like her. She listens to you, and hears you. Truly dedicated to making us successful.
julie snyderjulie snyder
18:50 18 Mar 24
“I cannot express enough gratitude for the exceptional care and support I received at Cornerstone of Southern California. From the moment I walked through the doors, I felt welcomed and understood. The staff members were not only highly professional but also genuinely compassionate, guiding me through every step of my journey towards recovery.The program’s evidence-based therapies with personalized attention, provided me with the tools and insights necessary to confront my addiction and reclaim control of my life. The therapeutic environment fostered a sense of community and understanding, allowing me to connect with others who were on similar paths.Moreover, the facility’s amenities were top-notch, offering a comfortable and safe environment conducive to healing and self-reflection. The serene surroundings and well-appointed accommodations added to the overall positive experience.Thanks to the comprehensive support and resources available at Cornerstone of Southern California, I have emerged stronger, healthier, and more hopeful than ever before. I wholeheartedly recommend this center to anyone seeking effective and compassionate treatment for addiction. It truly changed my life for the better.”
Elly ClemensElly Clemens
17:40 06 Mar 24
I am so grateful for Cornerstone. since entering this program I have been gifted hope back into my life. I have gained the courage to enroll in school, the opportunity to rebuild family relationships, and build a sober network and life! this program supported me in a way that made restarting in a new state possible. I have been in treatment many times before here, but gained new insight and tools past my previous knowledge. I love that the transition has been smooth from PHP all the way to sober living. My therapist was absolutely amazing and my case management team was incredible as well!
Chad KlaichChad Klaich
01:32 06 Mar 24
Cornerstone has been such a blessing in my life. Out of all the treatment centers I could’ve gone to, I’m so fortunate I landed here. The staff was helpful, and friendly. It felt as if they knew from experience what I was going through. My case manager Diane, was instrumental in helping rebuild my life and getting me out onto the road of recovery. I absolutely love my sober life today and I can’t imagine I would be here without Cornerstone!
Shan MirShan Mir
22:58 31 Jan 24
It was literally the turning point in my life. Staff were incredible and the curriculum was just what the doctor ordered. I’m so grateful for Cornerstone. Just celebrated my 1st year of sobriety last December and I would definitely recommend Cornerstone to anyone who truly has a desire to solve the drink or drug problem.Shan Mir
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The Interconnection of Mental Health and Substance Abuse

It’s important to note that mental health disorders and substance abuse can often be deeply interconnected. Individuals may turn to drugs or alcohol as a means to self-medicate or cope with their mental health symptoms. Substance abuse can also exacerbate or even trigger the onset of certain mental health conditions. Our dual diagnosis treatment approach ensures both the substance abuse and the mental health disorder are thoroughly examined. Both problems need to be addressed to provide holistic care for optimal recovery.

Recognizing Drug Addiction

If you are experiencing increased drug tolerance, obsession with drugs, deception, financial problems, cravings, self-medicating behaviors, awareness of negative impacts, or withdrawal symptoms, it is time to seek help. You can recover from drug or alcohol addiction and we will help to support you. 

Beginning Your Recovery Program

Acceptance is the first step. Be open and honest about your drug use, avoid negative influences, and be prepared to make significant changes in your life. Cornerstone of Southern California is here to support you every step of the way. Our community is here to support your recovery.

Take the First Step – Speak with a Specialist

Steps to Dual Diagnosis Treatment at Cornerstone of Southern California

The journey to recovery at Cornerstone begins with a comprehensive initial assessment, laying the foundation for a personalized rehab plan.

This comprehensive mental health and addiction treatment assessment helps our rehabilitation specialists understand each client’s unique needs, providing a safe and judgment-free space to discuss concerns and lay the groundwork for long-term recovery.

We understand that no two individuals are the same. At Cornerstone, our experts craft a holistic treatment plan tailored to each individual’s needs. This approach ensures that both mental health disorders and addictions are addressed simultaneously, maximizing the chances of a sustainable recovery.

Based on the addiction and mental health treatment assessment results, the treatment setting is determined:

  1. Medically Assisted Treatment for Detox: If the client requires significant help managing withdrawals, our professionals will guide them through a medically supervised detox program, potentially using anti-craving medications to ease the process.
  2. Inpatient Dual Diagnosis Program: If more addiction support is needed, our inpatient rehab offers a comprehensive 28-day rehab program tailored to the client’s needs with added mental health counseling.
  3. Intensive Outpatient Rehabilitation Program (IOP): For those who may not require inpatient treatment, but still need more addiction treatment support, our Intensive Outpatient Program provides recovery support and therapy in a more flexible setting.
  4. Mental Health Therapy Without Inpatient Rehab: For those clients who are already sober and in recovery but need more mental health counseling from a counselor or psychiatrist who is experienced in addiction recovery and support.

Regardless of the treatment setting, all clients will have access to psychiatric support and a variety of mental health therapy options, including:

Post-Treatment Ongoing Care at Cornerstone of Southern California is designed to provide continued support and resources to ensure lasting recovery and manage the challenges of everyday life after treatment.

  • Extended Care Program (ECP): Our Extended Care Program (ECP) is designed to provide additional support and guidance over a longer period, helping to prevent relapse after the initial treatment phase.
  • Recovery Support Groups: Guided by peers in recovery, recovery support groups provide ongoing support, inspiration, understanding, and camaraderie in a caring community environment.
  • Relapse Prevention Therapy (RPT): Relapse Prevention Therapy (RPT) is a form of cognitive-behavioral therapy aimed at identifying potential triggers and providing coping mechanisms to deal with high-risk situations.
  • Alumni Program: Our alumni program connects former clients with a fellowship of like-minded individuals via our own Alumni Mobile App, fostering a supportive community with events and outings tailored to show how a sober life can be fulfilling and exciting.

Addiction Treatment Center Locations

Below are the two primary locations, the medical center and intake facilities for Cornerstone of Southern California.

Dual Diagnosis Treatment Center

Cornerstone of Southern California Dual Diagnosis Rehab Center in Tustin, CA.

Evidence-Based Mental Health Therapy Methods

We believe in the power of evidence-based mental health therapy to bring about transformative change. Our team utilizes a range of mental health treatment methods, including:

A focused approach to recognize and reframe negative thought patterns, improving the management of triggers and development of effective coping mechanisms.

This method emphasizes mindfulness, emotional balance, stress tolerance, and improving interpersonal relationships.

Individual mental health therapy sessions offer a dedicated space for exploration, understanding, and personal growth tailored to each individual’s recovery journey.

Recognizing the shared impact of addiction and mental health on our loved ones and relationships, these specialized family therapy sessions aim to mend, strengthen, and nurture family bonds and relationships.

Group Therapy Sessions: In this group mental health therapy environment, patients share, learn, and grow together, drawing strength from shared experiences, mutual understanding, and community support.

Recovery Support Groups: Guided by peers in recovery, these support groups provide the ongoing support that is crucial for long-term recovery, providing inspiration, understanding, and camaraderie in a caring community environment.

With a deep understanding of trauma’s impact on both addiction and mental health, we integrate trauma-sensitive practices throughout our treatment programs. This approach ensures that each individual’s care is attuned to their unique experiences and promotes healing in a respectful, effective manner.

Mindfulness and Meditation Practices: Techniques that bolster self-awareness, manage stress, and promote awareness in the present moment.

Holistic Therapies: Beyond conventional treatments, we incorporate art, music, and movement, offering varied treatment methods that include self-expression, creativity, healing, and rejuvenation of the spirit.

By demystifying the complexities of addiction and mental health, we empower our clients with the knowledge to understand the steps and methods used on their recovery journey.

Addiction Treatment Programs for Drugs and Alcohol

Explore the comprehensive addiction treatment programs available at our Orange County, California, treatment centers. We provide specialized care for drug and alcohol addiction, offering a range of evidence-based therapies and personalized treatment plans to support lasting recovery.

Types of Drug Addiction Treatment Services

We provide specialized treatment for a wide range of drug addictions, including:
Learn about our Addiction Treatment Programs for Lasting Recovery

Mental Health Treatment Center FAQs

For many patients, family support is a critical part of recovery for transitioning from rehab back to everyday life outside of the treatment setting. Cornerstone of Southern California treatment centers encourage family therapy sessions and provide education to family members about mental health and addiction treatment.

Cornerstone of Southern California accepts a wide range of health insurance plans to make recovery accessible for as many individuals as possible. We have in-network status with numerous insurers, meaning that we have agreed upon rates with these companies to make treatment costs more affordable for you. Verify your insurance benefits here.

Yes, Cornerstone of Southern California is nationally accredited by the Joint Commission, licensed and certified by the State of California Department of Health Care Services (DHCS), and recognized by local courts and Orange County Probation.

We believe in a family-run, community-focused approach. Treatment plans are personalized and designed to maintain support throughout recovery. They focus on comprehensive healing, addressing the mind, body, and spirit for long-term recovery.

Cornerstone of Southern California facilitates long-term recovery and aftercare through the following programs:

  • Extended Care Program (ECP): The fact is recovery is more successful when we bridge the gap between treatment and a return to normal life. For many clients, there is a need for an extended care program to complete more treatment to avoid relapse. ECP at Cornerstone simply recognizes the fact that positive recovery outcomes are supported by long-term care.
  • Support Groups: Access to peer support groups and 12-step programs for continuous communal support.
  • Alumni Program: Planned events and gatherings through our Alumni Mobile App to maintain a community connection and reinforce sobriety.
  • Family Counseling Services: Counseling and support to rebuild family relationships and educating family and partners to support long-term recovery.

The terms “mental health treatment center” and “behavioral health treatment center” are often used interchangeably, but there can be subtle differences. A mental health treatment center typically focuses on diagnosing and treating mental health disorders such as depression, anxiety, bipolar disorder, and schizophrenia. On the other hand, a behavioral health treatment center may address a broader spectrum of issues, including mental health disorders as well as behavioral problems that could involve lifestyle choices, stress, or habits that negatively impact physical and mental well-being. Cornerstone of Southern California encompasses both aspects, offering services for a wide range of mental health disorders and behaviors. We provide comprehensive care for individuals seeking help for all types of conditions. 

Dual diagnosis treatment addresses the co-occurrence of addiction (such as alcohol or drug dependency) and a mental health disorder, providing integrated care to manage both conditions effectively. At Cornerstone of Southern California, we take a holistic approach to care, treating the individual as a whole. By addressing both addiction and underlying mental health disorders simultaneously, we not only support lasting recovery but also significantly reduce the risk of relapse, empowering individuals to rebuild their lives.

Dual Diagnosis Centers in Orange County

At Cornerstone of Southern California, we provide effective drug rehab and alcohol services across key locations in Orange County, California. Our evidence-based approach includes specialized care for dual diagnosis, ensuring individuals receive the support they need for both addiction and co-occurring mental health conditions. With a commitment to compassionate and effective treatment, we serve the following areas:
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We are here for you

Don’t wait another day to take the first step towards recovery. Contact us today.