“The road to recovery is challenging. Period. But the comfortable setting, caring staff, and amenities allowed me to focus on myself and recovery.”Jessica, Greenhouse
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About Greenhouse Addiction Treatment Center

About Us

The Greenhouse residential treatment facility is located in a beautiful former luxury spa in Grand Prairie Texas, near Dallas. As part of the American Addiction Centers family of treatment facilities, our experienced and compassionate staff can help you or your loved one escape the chaos that substance abuse has caused in your life. In this peaceful atmosphere, we offer a comprehensive continuum of research-based individualized treatment for adult men and women struggling with addiction and co-occurring mental health disorders.

Greenhouse Clinical Team

The Greenhouse staff has years of experience in the addiction and mental health industry. Our treatment team is staffed with caring, compassionate, and qualified clinicians. We only select appropriately licensed physicians, psychiatrists, psychologists, social workers, therapists, nurses, and support staff to work with you on yout plan for long-term recovery.

AAC Leadership

The AAC leadership team brings to each treatment facility addiction industry expertise and research-based programs. Our Executive Management Team is based at our corporate office in Brentwood, Tennessee (outside of Nashville) and is represented by professionals with decades of experience in behavioral healthcare and healthcare operations.

American Addiction Centers

AAC 2015 National Commercial
Duration – 60 sec

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The Greenhouse Team

Our team is comprised of highly-qualified, passionate individuals who strive every day to provide the best care possible.

Joel Klein, Greenhouse CEO

We’re now thrilled to introduce Joel Klein, our new Greenhouse Treatment Facility CEO, and ask that you join us in welcoming him to the AAC Team! With more than 30 years of professional experience in behavioral health, Joel began his career at HCA as a psych tech before transitioning into counseling with a focus on chemical addictions.

In 1996 he became Director and later Assistant Administrator of a 30-bed psychiatric facility under the Community Health Systems umbrella, where he developed EAP programs for large area companies like Maytag, La-Z-Boy, and Charleston Hosiery. From 2002-2013, Joel successfully led teams as the CEO of UHS facilities across the country, notably spearheading the effort to obtain Joint Commission Accreditation for Dallas Behavioral Hospital–the largest freestanding hospital in Dallas.

In 2015, he took on a new challenge as COO of a large psychiatric outpatient practice, integrating primary care medicine as part of a more holistic treatment approach to behavioral healthcare, and then becoming Vice President at one of Tennessee’s largest Community Health Systems facilities. Inspired by Michael Cartwright’s vision and dedication since opening Greenhouse, Joel expressed his determination to join our efforts at AAC to save lives and provide alternatives to psychiatric hospitals and antiquated treatment philosophies.

Leslie Noble – Clinical Director

As Clinical Director, Leslie oversees the clinical programming for both the Greenhouse residential and outpatient programs. Her focus it to ensure that we provide research-based addiction and co-occurring mental health disorders care for you or your loved one according to your individual addiction severity and specific needs.

Angela Warnke – Director of Nursing

When you or your loved one arrive at Greenhouse, there may be a need for medical detox or other reasons for monitoring. Our Director of Nursing ensures that we hire the most experienced, appropriately-licensed, and qualified nursing staff to care for our clients. Individuals in substance abuse rehabilitation often have special needs that need to be met by compassionate, addiction professionals.

Lisa “Sunni” Lambeth – Transportation

James Slape – Program Director

As Greenhouse’s Program Director, Mr. Slape helps guide and develop Greenhouse program operations to ensure the effective delivery of addiction treatment services to clients. His role also includes the delivery of program operations consistent with Greenhouse philosophies.