Cornerstone
Our Clinical Directors
Our Arizona Clinical Team
Our master-level Arizona clinical staff is committed to melding traditional and innovative therapeutic methods, ensuring every individual’s personalized and thorough recovery journey. With a variety of experiences and qualifications in addiction therapy, counseling, and mental health support, our clinical team enhances our multifaceted treatment approach, laying the groundwork for a transformative healing space.
Medical Director | Phoenix
Dr. Yar Khan earned his medical degree at the Medical University of the Americas in Nevis, West Indies. He completed his clinical training in the United States in Houma and New Orleans, Louisiana, and Chicago, Illinois. He then performed his internship and residency in internal medicine at the Mercy Hospital and Medical Center in Chicago, Illinois. Certified by the American Board of Internal Medicine, Dr. Yar Khan has special interests in outpatient primary care and hospitalist medicine including critical care. He has proficiency in endotracheal intubation, central venous catheterization, paracentesis, thoracentesis, lumbar puncture, and arthrocentesis.
Clinical Director | Scottsdale
Eboni Fields is a Licensed Professional Counselor with over a decade of experience helping people through addiction treatment. She has worked in the field since 2013 and spent more than 10 years as a Clinical Director, guiding both clients and teams with care and compassion. In July 2024, she joined Cornerstone Healing Center, drawn to its mission, culture, and dedication to helping people—no matter their circumstances.
Clinical Director | Phoenix
Nathaniel (Nate) Bush, LCSW, joined Cornerstone Healing Center in July 2021, bringing nearly a decade of experience in behavioral health treatment. His own recovery journey began in 2010 when he went through treatment and found himself deeply impacted by the experience. It was there that he realized his calling—to help others escape the hopelessness of addiction and find a path to healing.
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