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Phil Kosanovich, MBA
President & Chief Executive Officer

Phil has a senior leadership profile that spans from entrepreneurial ventures to global corporations. His experience includes consulting, operational, and executive-level roles in the behavioral health and addiction treatment industries that include co-founding and growing two residential and outpatient treatment centers. Phil is an inclusive and transformational leader with a reputation for building strong client/patient-centered teams focused on clinical excellence. He has an extensive record of success in leading companies through transitional periods of growth and creating and maintaining strong external partner relationships.

Phil’s expanded healthcare industry experience was with Landauer, where he started two subsidiary companies and led company operations in Australia and China. Prior to his 30 years in the healthcare industries, Phil was president of human resource and financial services related subsidiaries of Travelers, Equitable, Lincoln Financial Group, and Chicago Title & Trust. He has served on the executive board and in multiple leadership roles of a global human resources trade organization and elected into that industry groups Hall of Leaders. Phil has served on the boards of several healthcare-related charities and is the Chair of the Community Relations Commission in his hometown. Phil earned an MBA from DePaul University and a Bachelor of Science in Business Administration from Valparaiso University. He is in long term recovery.

Author’s publications

What is Naltrexone? Understanding Its Role in Addiction Recovery

By Cornerstone of Southern California on August 21, 2026
Naltrexone is a prescription medication used to support recovery from alcohol and opioid use disorders. It works by reducing cravings and blocking the rewarding effects of substances, making it easier for individuals to stay committed to their recovery goals. Understanding what naltrexone is and how it fits into a broader treatment plan can help individuals […]
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The Top 10 Drugs and Their Effects: What You Need to Know

By Danielle Graniello, LVN on July 31, 2026
Understanding the top 10 drugs and how they affect the body is a critical first step toward recognizing addiction and seeking help. Drug use impacts millions of Americans each year, including those right here in Southern California. Whether someone is personally struggling or watching a loved one suffer, having clear and accurate information can make […]
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Overcoming Drug Addiction: How To Start Your Recovery Journey

By Danielle Graniello, LVN on June 30, 2026
Overcoming drug addiction is one of the most challenging and courageous steps a person can take. Addiction is a complex condition that affects the brain, body, and relationships—but recovery is absolutely possible with the right support and treatment. Millions of people across the United States are living proof that lasting change is within reach. For […]
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Dating a Recovering Alcoholic: How to Build a Healthy Relationship in Sobriety

By Danielle Graniello, LVN on November 12, 2025
Dating someone in recovery from alcohol addiction can present unique emotional and practical challenges. This guide provides medically reviewed insights to help you understand boundaries, relapse prevention, and how to support a partner in sobriety. When you're dating someone who has a history of drug or alcohol addiction, it may come as a shock. It's […]
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