About Our Staff

Back2Basics is run by an expert staff of licensed and credentialed professionals, the majority of whom actively participate in 12-step recovery.

Back2Basics’ staff know how to bring hope, joy and reconnection to this seemingly hopeless situation. Our team is committed to successful addiction recovery.

Back2Basics Admin Team



Roy J. DuPrez, MEd
Chief Executive Officer, Founder

Roy DuPrez founded Back2Basics Outdoor Adventure Therapy after working with at-risk youth through multiple community organizations. His personal and professional experience led him to create a  treatment program that addresses the problems of addiction and provides dynamic and engaging solutions.


Francisco Rendon
Residential Program Director

Francisco Rendon graduated from Northern Arizona University with a Bachelor’s in Psychology. In 1999, he began his professional career working in community mental health. Francisco believes that our greatest strength at B2B…

Marti Weiskopf
Business Development Director

Marti grew up in the Midwest and moved to Arizona in 1986 where she raised her family. Early on she was drawn to helping adolescents, young adults and their families. At Iowa State University, where she earned her BS in Sociology, she worked…

Kathy DuPrez
Culinary Programming Director

Kathy DuPrez has worked in the food service industry for over 35 years and has an Associates Degree in Food Service Management, Culinary Arts from Los Angeles Mission College in California. Her job at B2B consists of teaching a culinary class…

Jenny Knox
Administrative Assistant

Jenny Knox is proudly jumping on board with the Back2Basics crew. Originally from Chicago, she moved to Flagstaff to study Social Work, and Parks and Recreation at Northern Arizona University. The highlight of her college career was spending…

Julia Roberts
Finance & Personnel

Julia assists with both bookkeeping/finance functions and personnel/admissions for Back2Basics.


Mary Delduca, MD

Dr. Mary Delduca is a board-certified psychiatrist who specializes in the treatment of children, teens and young adults. Since 1995 her practice in Flagstaff, AZ has integrated medication, psychotherapy, education and compassion…

Dr. Erin Erwin-Mahlios Back2Basics, Flagstaff

Erin Erwin-Mahlios, EdD

Dr. Erwin-Mahlios has over 35 years experience and expertise in psychology and therapy. As our Psychologist on Staff, Dr. Erwin-Mahlios helps both our residents and our creates clinical processes for our team. This includes providing psychological…

Dr. Natalie Randolph, LMSW, DBH
Primary Therapist

Dr. Natalie Randolph has been working within the Social Work profession for 17 years within a variety of settings, including a private outpatient substance abuse agency. She also serves as an adjunct professor through Northern Arizona University’s…


Keelyn Riley, LMSW
Primary Therapist

Keelyn Riley has passionately bridged the worlds of traditional psychotherapy and holistic mind-body healing through the powerful and transformational art of yoga therapy. Today, she runs a very successful business in treatment and education…

Raquel Rotnes, MA, LMT, CST
Art Therapist

Raquel Rotnes, MA, LMT, CST, has been in the Healing Arts since 1986.She established a successful business, Flagstaff CranioSacral Therapy Center, where she shares Certified Advanced CranioSacral and Somato Emotional Release…

Nan Shoaff

Nan has served as a Substance Abuse Counselor in Flagstaff for 20 years and joined Back2Basics as a Therapist. Specializing in drug and alcohol abuse, Nan has counseled many individuals through the 12-step process and into long-term sobriety.

Brad Mattingly

Brad has twenty-two years, experience providing counseling services and fifteen years included management responsibility.  He has worked extensively with people arrested for misdemeanor and felony, alcohol/drug and domestic violence charges.


Kelly McGrath
Outdoor Program Coordinator

“Find love in chaos” This was a message Kelly heard from a student while rafting through the Grand Canyon. One of the beautiful aspects of working with all different populations is the opportunity to learn and grow from these experiences. While she doesn’t exactly seek chaos, Kelly has learned to find the beauty in challenging situations and turn them into a positive…


Kevin Riess
Outdoor Guide

Kevin grew up outside of Minneapolis, found refuge in the many lakes of northwestern Wisconsin, and became acclimated to the outdoors through canoe and backpacking trips in northern Minnesota. He started guiding informally whenever family…

Daniel Maestas
Auxiliary Outdoor Guide

Daniel Maestas is a Flagstaff native. He is a graduate of Northern Arizona University and holds a Masters in Business Administration. He brings with him a lifetime of knowledge of the Northern Arizona outdoors.

Back2Basics Outdoor Adventure Therapy

Benjamin Scharfenberger
Kung Fu/Health Promotions Instructor

Ben believes that his consistent training of Kung Fu has enabled him, through concentrated effort, to overcome many difficult tasks. Ben believes that Kung Fu does not necessarily mean training in martial arts, but mastering an art.


Deandre Gonzalez
Residential Support Staff

DeAndre Gonzalez completed the full Back 2 Basics program in April of 2016. While he was in the second Phase of the program he interned for 3 months as a Residential technician. He enjoyed the fact that he was able to give back and share his experience…

Justin Zola
Residential Support Staff

Justin came to B2B in April of 2014 by way of New York Hudson valley area. Justin arrived in hopes of long term recovery and sustainable sobriety after several treatment facilities and multiple failed attempts. He completed the first 6 months and then the next phase at Beyond the Basics…

Brad Jones
Transition Coordinator

After graduating the transition program Brad began working there to offer the same experience, strength and hope to others. Brad helped build an alumni following in hopes of maintaining the meaningful relationships residents both past and present have gained at B2B.

Christian Cantrell
Transition Support Staff

Christian graduated from Back2Basics in 2014. As an alumni, Christian came back to work for the program and offer his experience to the current residents. He truly respects the 12-step approach that B2B offers.

Brendon Foley
Transition Support Staff

Brendon is currently 22 years old, he came from a loving home in Reno, NV. He arrived at Back2Basics  because of his addiction to drugs and alcohol. He had exhausted all of his options and had no where else to turn for help. He completed the…


Debra Roedl
Online & Social Media Marketing

Debra has over 30 years of marketing and business development experience with a BS in International Marketing and a BS in Business. For the past 15 years Debra has specialized in internet and information marketing worldwide through speaking and consulting. Her expertise in marketing combined with her passion for helping others and a love for the outdoors…

Carly Robertson
Online Content Editor

Carly Robertson is thankful for the opportunity to be a part of the B2B staff and mission to provide support to those struggling with addiction. Her goal is to get the word out to as many people as possible about the wonderful and unique B2B and Beyond the Basics programs through the website, press releases and social networking sites.

Carly Banks
Media Coordinator

Carly Banks grew up in Phoenix and obtained an Associate’s Degree in Communication.  She moved to Flagstaff to pursue her bachelor’s degree in Public Relations and Electronic Media and Film with an emphasis on Photography at Northern Arizona University. She loves being outdoors and traveling, always with a camera in hand.

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