Professional Staff

Photo of Prescott House Executive Director, Dayton Turberville.

Dayton Turberville


Dayton Turberville is a Licensed Independent Substance Abuse Counselor in the state of Arizona, Certified Sex Addiction Therapist (CSAT), and a Certified Multiple Addiction Therapist. He received his Master of Education with an emphasis in Counseling & Human Relations from Northern Arizona University. Dayton has worked in the fields of addiction and behavioral health since 1999, including clinical and administrative roles in public and private agencies. Prior to becoming Executive Director of Prescott House, Dayton served as our Clinical Director, as well as primary and adjunct therapist. His dedication to the mission of Prescott House and a strong commitment to the clients’ success are indispensable to the overall effectiveness of the program. Dayton’s door is always open to both staff and clients.

Clinical Team

Medical Director

Photo of Prescott House Medical Director, Dr. Terry A. Vaughan

Dr. Terry A. Vaughan


Dr. Vaughan is a Psychiatrist with the philosophy of treating each patient as an individual according to the patient’s individual needs. A graduate of the Indiana University School of Medicine, she is a respected and experienced in the mental health community with over 25 years of experience through West Yavapai Guidance Clinic and Psychiatric Services of Prescott.

Clinical Director

Photo of Prescott House Clinical Director, Lincoln Sperry

Lincoln Sperry


Lincoln earned his BA in English at University of Pennsylvania, graduating magna cum laude with Phi Beta Kappa honors. He later earned his Master of Social Work at Arizona State University, with a clinical concentration and internships at Sonora Behavioral Health hospital and Arizona Children Association’s Tucson outpatient clinic. Lincoln completed his intensive Certified Sex Addiction Training with Dr. Patrick Carnes in 2010. He worked for several years as a residential supervisor for an outpatient program in Tucson serving severely mentally ill clients. His areas of special expertise include sexual compulsivity and addictions – particularly with co-morbid psychiatric disorders, and men with eating disorders.

Learn about our Sex Addiction Treatment program

Behavioral Health Professional

Photo of Prescott House Behavioral Health Professional, Jeff Martin

Jeff Martin


Jeff Martin leads our clinical group with his experience, training, and wisdom gleaned from his 20 years in the field of addiction. He closely oversees the daily operations of the clinical staff and works to ensure that the individual treatment needs of each client are realized throughout the client’s progression in the Prescott House program. Prior to becoming Clinical Director at Prescott House in 2010, Jeff held the position of primary therapist in the residential phase of our program for several years. The therapeutic insight, professionalism, and objectivity that Jeff demonstrates help guide the clinicians and clients alike. Jeff received his Master of Education from Northern Arizona University.

Clinical Supervisor & Family Therapist

Photo of Prescott House Clinical Supervisor & Family Therapist, Barbara Rye

Barbara Rye


Barbara has worked in the field of addictions and mental health for 30 years. As a Licensed Professional Counselor and Licensed Independent Substance Abuse Counselor, she has experience in inpatient, residential, intensive outpatient and private practice settings. She has provided clinical consultation, training and direct services for various entities including schools and universities, emergency responders, treatment centers and tribal agencies. Though her philosophy of care is eclectic, it is rooted in the genuine belief that all individuals have dignity and an inner wisdom which facilitates healing and growth.

Primary Therapist

Photo of Prescott House Primary Therapist Doug Winter

Doug Winter


Doug holds a Masters Degree in Addiction Counseling from Grand Canyon University and has been a member of the Prescott House team since 2010. He specializes in treating sexual addiction, eating disorders and co-occurring disorders. Doug has served in a variety of roles at Prescott House including Aftercare Therapist and Eating Disorders Program Coordinator. Doug enjoys spending time with his wife and children.

Primary Therapist

Paul Swart is a Primary Therapist at Prescott House

Paul Swart


Paul has been part of the Prescott House team since 2013. After an extensive career in engineering, Paul found a new passion in life helping others recover from addiction. Paul’s life experiences help in assisting clients transition from a treatment environment to living on their own and moving forward with their life. Outside of work, Paul enjoys hiking, camping, visiting national parks, and reading.

Primary Therapist

Staff Bio of Prescott House Primary Therapist, Chris Sobel.

Chris Sobel

MS, Substance Abuse Counselor

Chris earned his Master’s Degree in Substance Abuse Counseling from Grand Canyon University. He holds a bachelor’s degree from Arizona State University (Summa Cum Laude) and has worked at Prescott House since 2005. He has been an active member in the recovery community in Prescott since 2002. In his work with each client, he brings forthrightness, inspiring life experience, and a commitment to helping men recover from addiction and addiction related issues. Chris has many passions including golf, softball, NY Mets baseball, Sun Devil Football and – most importantly – spending time with his wife and two daughters.

Primary Therapist

Photo of Prescott House Primary Therapist Colten Curtis

Colten Curtis


Colten has been with the Prescott House since 2010. Both insightful and compassionate, Colten enjoys being part of the recovery process for many men struggling with addiction. “Watching people heal and get better is a joy that I am truly grateful for. I get to see the miracle of recovery happen every day and there just isn’t anything better than that.”


Photo of Prescott House Neuropsychologist Virginia Conner

Virginia Conner


Virginia Conner received her doctorate at Northern Arizona University and went on to do a postdoctoral fellowship in neuropsychology at Braintree Hospital in affiliation with Boston University Medical School and Tufts New England Medical Center. She taught numerous graduate courses in neuropsychology subsequently at Northern Arizona University, and was an associate professor part-time. She has worked in hospitals and neurological clinics, and currently has a private practice in Prescott. She is on staff at Yavapai Regional Medical Center and Mountain Valley Regional Rehabilitation Hospital, is a fellow in the American College of Forensic Examiners, and is on contract as a mental health expert for the Yavapai County Superior Court.

Facilitator of Spiritual Companionship

Photo of Prescott House Facilitator of Spiritual Companionship Nancy Van der Voort

Nancy Van der Voort


Nancy is a graduate of Arizona State University with a Bachelor’s degree in Social Work. Retired from a long and satisfying career in Human Resources Management, she has since focused on a variety of volunteer activities: Prescott Family Hospice, Yavapai Regional Medical Center, Court Appointed Special Advocate for Children (CASA). She currently is a facilitator of Osher Lifelong Learning Institute programs including Death Cafés, Beyond Right and Wrong: Stories of Justice, and A Different Prime of Life: The Spirituality of Aging. Her spiritual path has given her exposure to many helpful experiences. Through the years, she has found meaningful participation in Ala-Non and has completed the Personal Coaching Certificate program at the Southwest Institute of Healing Arts, the Nine Gates Mystery School, the Ministry of Spiritual Peacemaking program directed by James Twyman, and she is a graduate of the Hesychia Spiritual Director training program, a multi-faith approach to spiritual guidance. While not a member of a religious tradition, she was raised Roman Catholic and has particularly appreciated the freedom to explore a variety of world religious practices (Christianity, Islam, Judaism, Bahá’í Faith, Rastafarianism, Samaritanism, Mormonism, Hinduism, Buddhism, Jainism, Sikhism). She considers herself to be on a life-long path of spiritual discovery and welcomes engaging with individuals and groups who are also seekers of the God of their understanding and of Truth within their own hearts and souls.

Medical Team

Nurse Practitioner

Photo of Prescott House Nurse Practitioner Michael Frost

Michael Frost


Michael Frost graduated from the University of Arizona with a Master of Science in Nursing Family Nurse Practitioner. A member the American Academy of Pain Management and the American Nurse Association, he is a specialist in pain medicine and nursing he has been serving the Prescott area for over 10 years.

Medical Services Supervisor

Photo of Prescott House Medical Services Supervisor Luke Mikulich

Luke Mikulich

Registered Nurse

Behavioral Health Residential Supervisor

Photo of Prescott House Behavioral Health Residential Supervisor David Glasser

David Glasser


Case Managers

Case Manager

Photo of Prescott House Case Manager, Robert Pierret

Robert Pierret


Originally from Palo Alto, California, Robert discovered a passion for helping fellow addicts while in treatment at The Prescott House. This passion has now translated into a clear career path for him. Robert is our Case Manager, as well as a facilitator of process therapy groups here at the Prescott House. Robert is pursuing a Bachelor’s Degree in Psychology (BA/BS) at Prescott College and plans to pursue his masters in Clinical Psychology. Robert is happily married and has set down roots in Prescott. He and his wife Kylee have a 2 year old daughter named Ellie and another baby on the way.

Case Manager

Photo of Prescott House Case Manager, Steve Pope

Steve Pope


Steve, a US Navy Submarine Service Veteran, served in Vietnam. He is from Stockton, California and has been employed by the Prescott House as a Behavioral Health Technician since November of 2018. Steve was so compelled by the recovery community, support, and treatment from Prescott House, that he eventually relocated to Prescott, Arizona. This decision was to follow his newfound passion, choosing a career of helping others with their addiction. Utilizing his vast knowledge of multiple addictions and emotional issues, he helps others by sharing his experience of addressing these problems himself. His understanding of PTSD and military-related mental health disorders gives him a great perspective in helping others with significant trauma. Steve loves his position at the Prescott House using this opportunity to help others through the recovery process, while on the journey of his own. He also loves giving back to the community by performing musically in and around Prescott the area.

Business & Administrative Staff

Chief Executive Officer

Photo of Prescott House Chief Executive Officer John Montgomery

John Montgomery

John’s positivity and passion for recovery is what helps Prescott House thrive. His involvement and goals to constantly improve the quality of service both clinically and individually is what sets the treatment at Prescott House above other programs.

Chief Operating Officer

Photo of Chief Operating Officer Mike McInnes

Michael McInnes


Michael is an intricate member of our team with versatile skills in many facets of the treatment process. Michael is a former Marine as well as Thunderbird, International School of Business MBA graduate.

Director of Admissions & Marketing

Photo of Director of Admissions & Marketing Tim Scanlan

Tim Scanlan


Tim grew up in Tucson, AZ and struggled with addiction from an early age. He came to the Prescott House in June of 2014 and has been sober since. He has found his passion in helping people recover from addiction and is an active member of the AA community in Prescott. Recently Tim completed his BS in Applied Human Behavior at Northern Arizona University and plans on entering a Master’s Program to further his education. Tim has worked at the Prescott House since 2015 and is an avid U of A basketball fan.

Tim is available throughout the week at Prescott House’s direct line: 1-866-425-4673

Facilities Manager

Photo of Facilities Manager Coby Gravel

Coby Gravel

Business Administrator

Photo of Business Administrator Mike Murphy

Mike Murphy


Mike was born in Vermont and grew up in Silver Spring, Maryland. Following graduation from York in 2009, he found himself struggling with substances while searching for direction. Mike attended Prescott House in 2014 and embraced the program, becoming an active member in Prescott’s 12-step community. Finding a passion in helping others through their struggles with addiction, Mike began working at the Prescott House in 2016.

Business Office Staff

Photo of Business Office Staff Brian Carlisle

Brian Carlisle


After being raised in northern farm country, Brian received a BS in agricultural business and pursued a career in agriculture and finance before coming to the Prescott House as a client. Brian’s experience in business allows him to assist the clients with financial education as a part of their preparation to live a solid, sober life. Brian enjoys being outdoors and performing in the local music community

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