Our Staff

Experience a Safe Recovery from Addiction with Highly Qualified Staff

Purpose Healing Center offers personalized, comprehensive drug rehab programs that are facilitated and overseen by accredited, experienced and highly trained staff.

Purpose Healing Staff Headshot Robin Byrne

Robin Byrne, LCSW, Clinical Director, Cofounder

Robin’s early mission statement was simple “Bring Addiction Treatment to as many people as possible and save lives.”  PHC was born with this in mind. 

Robin holds a BSW from Loyola University of Chicago and a Master of Social Work from the University of Illinois. With  38 years experience treating individuals, couples, and families her expertise guides the PHC teams and programs.  

Having completed a three-year post-graduate training program in Bowen Family Systems Theory she emphasizes the value of family support for our recovering clients. 

Her affinity for holistic treatments led her to become a certified Meditation teacher and a Kundalini Yoga Instructor.   As a devoted Meditator and Yogi she recognises the benefit of teaching our clients new methods of self care. Our programs incorporate wellness,  alternative therapies  and spirituality in the healing process. 
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JP Grako, CFO, Cofounder

JP arrived in this field through personal and family experience, and a strong desire to lead others to achieve what he has, long-lasting sobriety. JP opened Alliance Sober Living in the fall of 2016, when he saw a gap in the availability of aftercare in the Scottsdale area. After opening his third house in 2018, he partnered with Gabe and Robin to create Purpose Healing Center. Purpose was created as a family business to help others achieve their ultimate goals and dreams, and to overcome the gripping effects of addiction. JP holds a bachelors in business from Grand Canyon University.

Gabriel Tomaeno, CEO , Co Founder

Gabriel Tomaeno, CEO, Cofounder 

Gabriel’s own recovery led him to seek a career in this field. When he was battling addiction, he sought both Inpatient and Intensive Outpatient programs to guide him into recovery. With the support of the treatment programs, community support and his family he has been able to achieve sobriety. Eager to get involved in the recovery field, crediting his own treatment with saving his life, he enrolled in college with Addiction Treatment as his major.  Gabriel’s role within the company is to ensure ethical and appropriate approaches to businesses growth including referrals, client care, operations, community outreach and much more. Being the CEO of Purpose Healing Center is much more than a title for Gabriel he takes pride in the company’s mission and holds it close to his heart “Help bring Treatment to as many people as possible”.  Gabriel says the most joyous part about this field is talking to a new client and watching their hope rise when they feel the blessings of sobriety.

Brent Osnato, Program Director

Brent Osnato, Director of Operations

Brent began working in the recovery field after finding his own path of sobriety and abstinence. He has worked in Sober Living Admissions, as a BHT and IOP Director.
As Director of Operations he is an integral member of the treatment team and enjoys organizing, problem solving and assisting clients in their early recovery needs. While based in the Administrative Office he travels to all the locations meeting the various needs of our clients. 
PHC jokes that the most commonly repeated statement amongst staff is “Where’s Brent?”

Dr. Abdallah, General/Addidtion/Consultation-Liaison Psychiatrist

Dr. Abdallah obtained his medical degree from Alexandria University in Alexandria, Egypt. He completed his residency training in psychiatry at West Virginia University. He is a triple board-certified in General Psychiatry, Consultation-Liaison (Psychosomatic) Psychiatry, and Addiction Psychiatry. Dr. Abdallah is experienced in treating psychiatric illness in people with complex medical/mental conditions and is an expert in addiction medicine. He is passionate about quality care.

Dr. Roland Segal, General Adult and Foresnic Psychiatrist

Dr. Roland Segal – received his medical degree from the University of Arizona, College of Medicine before completing his psychiatry residency at Banner Good Samaritan Medical Center and his forensic psychiatry fellowship at the University of Southern California. Dr. Segal is board-certified in general adult and forensic psychiatry.

Dr. Segal has more than 10 years of clinical, administrative, executive, and forensic experience. He has served as president of the Arizona Psychiatric Society and is the chair of the legislative committee. A member of multiple state and national boards, committees, and organizations, Dr. Segal is a clinical assistant professor of psychiatry at the University of Arizona, College of Medicine, where he regularly teaches medical students and residents.

Dr. Segal serves as a psychiatry expert consultant for a number of superior and regional courts including Salt River, Maricopa and Yuma County; city governments including Phoenix, Lake Havasu, and Mesa; and organizations including the United Postal Service, Social Security Administration, Immigration Health Services, US Department of Justice and the Department of Homeland Security.

Daniel Melendez, Director of Business Development

Stephanie Melendez, Admissons Director

Elizabeth Guevara, CNA

Jana Easley, Primary Therapist

Kyle Summers,
Primary Therapist

Marilou Lorenzo, CNA

Megan Stuart, Utilization Director

Sydney King, Case Manager

Our Location

Administration Building

9332 North 95th Way, Suite B-203
Scottsdale, AZ 85258

Accreditations and Memberships

We are committed to providing exceptional service to promote long-term recovery.

Our Staff

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Purpose Healing Center - Drug and Alcohol Rehab Scottsdale

Why Purpose Healing Center?


The mission of the PHC family is to assist in any way possible our client’s desire to achieve and maintain a life of long-term sobriety. Follow us on Facebook, Instagram and Twitter for our latest news.


We are an accredited drug rehab in Scottsdale, AZ, with substance abuse and Arizona alcohol rehab programs.


The Joint Commission Accreditation



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