Meet Our Talented Team

During their time here, patients will be under the 24/7 supervision and care of our highly trained professional staff. Our team of physicians, psychiatrists, and addiction specialists are all master’s-level or doctoral-level practitioners and CSAT-trained with extensive experience in intimacy disorders and sexual trauma. Our psychiatric nurses, nursing staff, and recreation therapists are experienced in supporting patients through the treatment process and working as an integral part of the treatment team. All staff at Willow House at The Meadows are handpicked for their expertise and compassion then trained and supervised by Dr. Stefanie Carnes, ensuring each of our patients receive the most advanced and comprehensive treatment in love and intimacy disorders.

Stefanie Carnes, PhD, LMFT, CSAT

Dr. Stefanie Carnes is the president of the International Institute for Trauma and Addiction Professionals, a training institute and professional organization for addiction professionals. The clinical architect for Willow House at The Meadows, she works with sexually addicted clients and their families, helping those struggling with sex, love, and intimacy disorders.

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Scott E. Davis, MEd, LPC-S, CSAT-S

Executive Director

Born and raised in Pilot Point, Texas, Scott Davis holds a bachelor’s degree in sociology and a Master of Education in counseling, both from the University of North Texas. He is also a Licensed Professional Counselor Supervisor and a Certified Sex Addiction Therapist Supervisor. Davis joined the Meadows Behavioral Healthcare team in 2015 as the clinical director at our flagship program, The Meadows, before becoming Chief Clinical Officer for all of Meadows Behavioral Healthcare. He took the helm at Gentle Path and Willow House in the summer of 2022, applying his training in Internal Family Systems, Post Induction Therapy, EMDR, and trauma to his role as executive director.

Prior to joining The Meadows, Davis was director of clinical services for the Enterhealth treatment program in Van Alstyne, Texas. He was also a case manager and eating disorder program director for the Santé Center for Healing in Argyle, Texas, and regional director of outpatient services for Phoenix House of Texas in Dallas. He has experience treating patients and military personnel who have substance use disorders, sex addiction, eating disorders, and trauma. In addition, he has training in modalities that include neurofeedback, brain mapping, EMDR, CBT, motivational interviewing, challenge course, ropes facilitation, and the interplay among brain development, neurology, and trauma recovery.

Married since 1992, Davis has two adult children. In his spare time, he likes to hike, camp, weld, and blacksmith.

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Isabel Nino de Guzman, PhD, CSAT-S


Dr. Isabel Nino de Guzman works as a licensed psychologist for Willow House and Gentle Path at The Meadows, participating in direct patient care and supervising CSAT professionals within the Meadows Behavioral Healthcare family. She trained under Dr. Patrick Carnes' direct supervision and has worked with him conducting research in the field of sex addiction since 2006. Dr. Nino de Guzman has previously held jobs at two of the most reputable programs for addiction treatment in the United States. She also brings a wealth of clinical experience from her career in Peru as a professor, researcher, and author or co-author of several publications.

In her role at Willow House, Dr. Nino de Guzman conducts specialized psychosexual assessments for patients with sexually addictive behaviors, intimacy disorders, and complex trauma. She has brought to our programs her vast experience on dual disorders and utilizes evidence-based practices to treat patients, knowing the unique patterns of interaction between sexual addiction, mental health disorders, and maladaptive personality patterns.

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Rob Wallace, MSN, RN, ASAT

Director of Nursing

Rob Wallace is the director of nursing at both Willow House and Gentle Path at The Meadows. He also serves as Meadows Behavioral Healthcare’s nursing coordinator, interfacing with nursing staff throughout the MBH system. Wallace earned his master’s degree in nursing with a focus on nurse executive and completed Associate Sex Addiction Therapist (ASAT) certification in 2016. Wallace has worked in addiction recovery since 2003, and he remains active volunteering with the Wickenburg Lions Club, Wickenburg Chamber of Commerce (he was awarded the Tip of the Stethoscope Award for 2017 and named Volunteer of the Year in 2010), Wickenburg Unified School District, HOSA, and as advocate for nursing issues at the Arizona Senate and House of Representatives, engaging around behavioral health and substance use disorder iss.

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Jon G. Caldwell, MD

Chief Medical Officer

Dr. Jon Caldwell is a board-certified psychiatrist and clinical research investigator who specializes in the treatment of adults who are healing from relational trauma and addictive behaviors. He is currently the chief medical officer at Meadows Behavioral Healthcare, with oversight of Willow House. His theoretical perspectives are heavily influenced by his PhD training at the University of California at Davis, where he began researching how early childhood maltreatment and insecure attachment relationships affect cognitive, emotional, and social functioning. His clinical approach has become increasingly flavored by the timeless teachings of the contemplative traditions and by the daily practice of mindfulness. Dr. Caldwell has published a number of articles on child maltreatment, attachment theory, emotion regulation, and mindfulness, and he is a noted international speaker and trainer on these and other topics.

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