Our team
At Forrest Behavioral Health, our team is the cornerstone of the comprehensive care we provide. Each member brings a wealth of expertise and compassion, ensuring that every aspect of our clients’ recovery is addressed with the utmost care and professionalism.
Recognizing the unique nature of addiction in each individual, our team employs a tailored, multidisciplinary approach. Our clinicians and doctors deliver the best medical care, complemented by our therapists and counselors, who provide a range of innovative therapeutic modalities. Together, we ensure a holistic treatment experience, fostering physical, mental, and emotional healing in a supportive environment.
Meet our Leadership
The people responsible for the care you receive at our Hoffman Estates location.
Billy Lewis
Billy Lewis is a dedicated behavioral health leader with more than 15 years of experience in program operations, regulatory compliance, and team leadership.
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As Program Director, he oversees outpatient services and has extensive experience leading teams across psychiatric, residential, detoxification, PHP, and IOP settings.
Billy holds a Master of Public Administration from National University and degrees in Human Services from Columbia College and Elgin Community College. He is passionate about promoting accountable care and expanding access to quality behavioral health services.
Annmarie Gacek
Annmarie earned both her bachelor’s and master’s degrees in Social Work from Loyola University Chicago and has devoted her career to supporting people facing both addiction and mental health challenges.
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She is a Licensed Clinical Social Worker (LCSW) and Certified Alcohol and Drug Counselor (CADC). To better serve her clients, Annmarie earned an additional certification in Dialectical Behavior Therapy (C-DBT).
Annmarie has experience working with clients in a variety of settings, including residential, PHP, IOP, and community behavioral health and substance abuse programs. She is passionate about providing evidence-based care and supporting individuals throughout their journey toward recovery and improved mental health.
In her role as Clinical Director, Annmarie is committed to fostering a collaborative, client-centered environment where both clients and staff can thrive.