The addiction professionals at Calvary Healing Center are dedicated to providing effective treatment for recovery from substance use disorders. The Calvary Healing Center staff is made up of certified addiction therapists, medical staff, and a consulting psychiatrist.
The skilled clinical staff combines evidence-based addiction therapy techniques, the 12-step program, and medical care to create the greatest potential for long-term recovery. We are committed to being compassionate and understanding of each patient’s needs, working together to provide healing and hope for those whose life has been torn apart by addiction.
The staff at Calvary Healing Center have the dedication needed to help patients combat addiction. When someone recognizes that they have a problem and need help in fighting their addiction, the decision to enter a treatment program is a profound and frightening turning point. Calvary’s staff members are right there to help every step of the way. We understand how important it is to provide a secure environment for our patients to begin healing from their addiction and all the pain it has caused in their lives.
Meet the Calvary Healing Center Staff
Ashley Shuster, MBA
Chief Executive Officer
Ashley Shuster joins Calvary as Chief Executive Officer, bringing more than a decade of experience in the substance use treatment field and a deep passion for helping individuals access quality care.
Throughout her career with UHS, Ashley has served in key leadership roles at Skywood Recovery, Keystone, and most recently as CEO of Sea Grove Recovery. She holds a Master of Business Administration (MBA), complementing her extensive industry experience with a strong foundation in organizational leadership and business strategy.
One of Ashley’s distinguishing qualities is her hands-on approach to leadership. She believes effective leadership means being present, accessible, and actively engaged with both her team and the day-to-day work of the organization. Rather than leading solely from an executive level, Ashley makes it a priority to understand the needs of her staff, programs, and the individuals they serve. This level of involvement sets her leadership style apart and allows her to build strong teams, identify opportunities for improvement, and lead meaningful growth.
Ashley is grateful for the opportunities she has had throughout her career to develop teams, grow programs, and strengthen access to treatment. Her leadership style is rooted in collaboration, accountability, and a commitment to creating environments where both employees and those they serve can thrive.
As CEO of Calvary, Ashley is thrilled to bring a fresh perspective, strong leadership, and genuine commitment to the organization’s continued growth and success. She looks forward to building upon Calvary’s foundation while supporting its team and expanding opportunities for individuals and families to access meaningful, high-quality treatment.
Outside of work, Ashley enjoys spending time outdoors, discovering new coffee shops, and spending time with her dog, Kiah.
Bryan Evenson
Director of Business Development
Bryan Evenson joined UHS in December 2015. Born in San Francisco and raised in Everett, Washington and Scottsdale, Arizona, Bryan pursued studies in art, business and architecture in Arizona. In September 2022, Bryan was appointed Director of Business Development at Calvary after holding various roles across multiple departments, including at a Level I psychiatric facility.
His experience spans a wide range of positions: BHT, Lead BHT, Intake Specialist, Utilization Review, Lead Intake Coordinator, Community Liaison, and Director of Business Development. Bryan leverages his expertise to support potential patients and their families, utilizing his deep understanding of substance use disorders and psychiatric care. His ability to build strong connections with providers, facilities, and organizations fosters collaboration at all levels of care, ensuring seamless coordination with referral sources and community partners.
A deep sense of purpose drives Bryan’s commitment to substance use disorder and behavioral healthcare. He is passionate about supporting his staff, empowering them to deliver high-quality patient care. Bryan leads with integrity, compassion and determination, striving to be the kind of leader he would want to follow.
Bryan and his wife have three grown children and currently live in Scottsdale. In his free time, he values time with family, working as a freelance artist, indulging his enthusiasm for sports, the outdoors and world travel with his wife.
Robert Halligan
Medical Director
Dr. Robert Halligan, Medical Director at Calvary Healing Center, brings over 25 years of dedicated experience in addiction medicine, complementing his extensive background in internal medicine and cardiology. Board-certified in Addiction Medicine since 2014 and Preventive Medicine since 2022, Dr. Halligan has been actively practicing addiction medicine since 1995. His clinical expertise uniquely positions him to understand the complexities of addiction and the critical need for timely, appropriate treatment. With a long-standing commitment to comprehensive patient care, he advocates evidence-based interventions that significantly improve health outcomes. Given his authoritative knowledge and clinical experience, Dr. Halligan strongly supports the necessity and medical appropriateness of the treatment provided, underscoring the importance of ensuring continuity of care and optimal recovery.
Nathan Mageo
Intake Director
