Isaac C.
The spark that ignited Cornerstone’s creation came from a deeply personal place. In my previous role at an addiction treatment hospital unit, I often had to discharge patients before I believed they were truly ready. I knew that they needed more time. This realization led me to the understanding that addiction affects not just the body, but also the mind and spirit. While physical healing may occur relatively quickly, the mind and spirit require more time and care to fully recover.
Cornerstone was built on a simple yet powerful premise: provide addicts and alcoholics, especially those with dual diagnoses, a safe, non-judgmental space where they can take the time they need to heal. What began as a single sober living home has blossomed into a comprehensive system of care that supports individuals through every stage of their recovery journey.
This holistic approach allows us to care for our clients until they feel they have built the necessary foundation to fully heal and reclaim their lives.
Cornerstone is more than just a treatment center; it’s an extension of my own family. My family has grown alongside the organization, with each member contributing to ensure we maintain ethical treatment practices and effective programs. Our focus remains steadfast on fostering a sense of community and mutual respect.
In my near 60 years in this industry, I’ve witnessed countless developments and advancements in the field of addiction and behavioral disorders. I am committed to ensuring that both I and the staff at Cornerstone remain at the forefront of these changes, implementing the most innovative and effective practices available. We believe in constant personal and professional growth, which is reflected in Cornerstone’s own evolution and expansion over the years.
It is an honor and a privilege to do this work. I am profoundly grateful to have been part of the recovery journey of over 50,000 people. As I look to the future, I am filled with hope and determination to help many, many more individuals reclaim their lives from addiction.
With heartfelt dedication,
Dr. Michael Stone
The Heart & Soul of Cornerstone of Southern California
It’s Beginning, Development, and Growth over 35 plus Years
Dr. Michael Stone’s journey in addiction medicine began in 1969 when, at 26, he became the medical director of Canada’s first alcohol and drug treatment center in a med-surg hospital. This experience set the foundation for his life’s work.
In 1975, Dr. Stone moved to Southern California, joining the University of California, Irvine as an Assistant Professor in Family Medicine. During this time, he began working at The Care Unit Hospital of Orange, eventually becoming its Medical Director. There, he collaborated with renowned addiction specialist Dr. Joseph Pursch and helped train the initial staff of the Betty Ford Center.
Recognizing the need for post-acute care, Dr. Stone founded Cornerstone of Southern California in 1984. Initially a residential treatment program, Cornerstone quickly obtained state licensure and Joint Commission accreditation. Over the years, Dr. Stone has treated an estimated 50,000 patients, with more than half receiving care at Cornerstone.
As a family-run business, Cornerstone operates under Dr. Stone’s continued leadership as Founder, Chairman, and Chief Medical Officer. His children – Samantha, Simon, and Tim Stone – have each worked for the company for over 20 years and serve on the executive committee. The leadership team is further strengthened by CEO Phil Kosanovich, MBA, and Executive Director Tami Campbell, both of whom are in long-term recovery themselves.
Cornerstone takes pride in its independence from outside investors and its commitment to delivering compassionate care and clinical excellence. The heart and soul of Cornerstone lie in the dedication and hard work of its staff, who strive daily to provide the highest quality care to patients and their loved ones.
As a family-run business, Cornerstone operates under Dr. Stone’s continued leadership as Founder, Chairman, and Chief Medical Officer. His children – Samantha, Simon, and Tim Stone – have each worked for the company for over 20 years and serve on the executive committee. The leadership team is further strengthened by CEO Phil Kosanovich, MBA, and Executive Director Tami Campbell, both of whom are in long-term recovery themselves.
Cornerstone takes pride in its independence from outside investors and its commitment to delivering compassionate care and clinical excellence. The heart and soul of Cornerstone lie in the dedication and hard work of its staff, who strive daily to provide the highest quality care to patients and their loved ones.
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