Stephan Ackermann, M.A, LAC, MBA


Stephan uses a person-centered approach to create a safe, therapeutic space for all of his clients. Stephan integrates evidence-based treatments and a depth psychology approach to working with adults and adolescents on issues related to life transitions, family conflict, self-esteem, loss & grief, anger, anxiety, and depression. Stephan is originally from France and had a distinguished business career prior to becoming a therapist. Stephan joins Cathexis from the Tucson Medical Center Hospice (TMC) where he completed his internship as a Grief Counselor.

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Amanda Bergstrom, LCSW


In Amanda’s experience, she feels moments of great suffering also provide unique opportunities for growth. Her aim is to provide a safe and nurturing place for you to heal. Amanda believes the path to healing is unique to each person, and offers a range of interventions that are designed to help you tap into your strengths and create resilience; such as mindfulness, meditation, cognitive therapies, expressive art therapy and strengths based interventions. Amanda specializes in working with youth and LGBTQ identified individuals, and looks forward to walking alongside you on your path to healing.

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Jessica De La Ossa, LAC, MSC, PhD


Jessica is a Licensed Associate Counselor specializing in helping clients improve their relationships with themselves and others — which ultimately enhances their overall quality of life. She uses an array of therapy methods to help clients discover something they never knew was there, in themselves and in their relationships.


She also works with clients experiencing grief, loss, anxiety, depression and big life changes. Drawing from her mixed educational background, she utilizes a tailored approach to help her clients feel empowered and excited about life again. She holds a Master of Science in Counseling from Prescott College and a Doctor of Philosophy in Human Geography from the University of Arizona.


In addition to her clinical work, Jessica has published works in the edited volume Psychoanalytic Geographies and the journal Emotion, Space and Society. She has presented research findings at national conferences and remains dedicated to bridging psychotherapy with insights emerging from psychoanalytic geography.

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Priscila Matei, MA, LAC, CRC, CCTP


Priscila is a Licensed Associate Counselor, Certified Rehabilitation Counselor and Certified Clinical Trauma Professional. She holds a Master’s degree in Rehabilitation and Mental Health Counseling from the University of Arizona. She has worked with patients in assisting with disability rights advocacy, adjustment to disability, vocational rehabilitation and therapeutic counseling support to address the psychological, behavioral, cognitive and social factors affecting the patient’s well-being.


Priscila integrates evidence-based treatments and a person-centered approach to working with adults and children on issues relating to psychosocial aspects of disability, adjustment, depression, anxiety and trauma.

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Traci Grabb, LPC


As a licensed professional counselor, Traci provides therapy to adults, adolescents, and children. She sees her role as helping you feel better in the areas of your life that bring you anxiety and emotional pain. Whether that is from relationship difficulties, trauma, loss or stressful situations, Traci’s great passion is to work with each individual to uncover the deeper issues, to build on strengths and to provide new tools and the skills needed to improve their relationships and quality of life.


Her style is interactive, inspiring, supportive and solution-focused while providing compassion, understanding, empathy, and practical feedback in a relaxed environment. Having years of experience counseling clients from diverse backgrounds with a wide range of challenges, she uses a variety of modalities in a highly personalized approach tailored to each client.


Traci holds a Master of Mental Health Counseling and graduated from Argosy University. In 2016 she became a published editor of the book Identifying, Treating, and Preventing Childhood Trauma in Rural Communities (Advances in Psychology, Mental Health, and Behavioral Studies). Traci is a member of the American Counseling Association and its local branch, Arizona Counselors Association.


Making the decision to contact a therapist can be difficult and her goal is to make the process as welcoming as possible in a comfortable and calm office setting.

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Bernadette Roumbos, MAPC, LAC, RD, CDE, PYT-C


Bernadette is a Licensed Associate Counselor, Registered Dietitian, Certified Diabetes Educator, Registered Yoga Teacher, and Professional Yoga Therapist–Candidate. She earned her Master’s of Arts in Professional Counseling from Liberty University integrating Christ centered counseling with Biblical principles for mental and spiritual health. She has worked in the health care industry for over 20 years; both inpatient and outpatient in a variety of roles. Her passion is to provide hope and healing from life’s challenges in a safe place. She provides a Christian based perspective for those seeking to integrate their Christian faith into the counseling process and general therapies and welcomes clients from all backgrounds.


Bernadette integrates therapies and counseling to best meet the needs of the client. She has experience working with children, teens, adults, couples, and families.


Treatment areas include: *Addictions: Substance and Process addictions * Anxiety * Depression * Eating Disorders, body image, and weight management * Health Issues: cancer recovery, diabetes control * Premarital/ Marriage counseling and is Certified to administer Prepare & Enrich Assessment/Relationship issues * Obsessive Compulsive Disorders * Self harm * Spiritual growth * Stress management * Trauma & PTSD.


Bernadette’s treatment approaches include: Acceptance and Commitment Therapy (ACT), Dialectal Behavior Therapy (DBT), Interpersonal Therapy (IPT), Mindful based-Cognitive Behavioral Therapy, Motivational Interviewing (MI), Certified Clinical Hypnotherapy (CCH), and Trauma- Sensitive Yoga. ​

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Gina Siler, MA, MSC, LPC​


Gina works with clients from diverse backgrounds with many different concerns, creating a new therapy experience most relevant to the client. Much of her work has been with clients experiencing depression, anxiety, trauma as well as grief and loss; with a focus on complex personalities. Her therapy environment is both safe and relaxed. Therapy is a tremendously individual experience and lends itself well to being organic and in the moment. Gina views her role as asking thought provoking questions and making observations based on listening in a way that, over time, paints a picture of the client’s inner and outer life, known and unknown.


Gina has a Master’s Degree in Somatic Psychology and a Master’s Degree in Community Counseling. She possess over nine years of training in depth psychology, specifically relational, psychodynamic and psychoanalytic psychologies. She incorporates various theories and interventions into the therapeutic process. Her background is in Eastern philosophies, transpersonal psychology as well as neuroscience, and has presented at various professional seminars.

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Jennifer Youngblood, CRC, LAC


Jennifer takes an individualized approach to counseling and incorporates a variety of therapies such as Acceptance and Commitment Therapy, Cognitive Behavioral Therapy, Solution-Focused Brief Therapy, and mindfulness. Jennifer believes that vulnerability, authenticity, and compassion allow for the development of deep connections and self-assurance. Jennifer will provide a safe and supportive environment for you to find strength and growth through hardship, acquire the tools for self-healing, and become your most authentic self.


As a Certified Rehabilitation Counselor, Jennifer understands the psychological and social aspects of disability and adjustment. She holds a Bachelor of Science in Psychology from Georgia College & State University and a Master of Arts in Rehabilitation and Mental Health Counseling from the University of Arizona. Jennifer joins Cathexis after working several years in the Behavioral Health field as a Residential Behavior Coach, Outpatient Behavior Coach, and Recovery Coach.


Emily Viola, LMSW


Emily provides strengths based, person-centered, and trauma informed therapy. She primarily works with children, adolescents, young adults, and families. She focuses on addressing experiences of anxiety, depression and stress, particularly those that arise from concerns regarding life and family transitions, chronic illness, traumatic events, body image, and issues unique to LGBTQIA individuals. With a background in social work, Emily considers the environment and systems that may be contributing to a problem, including social justice issues such as racism, sexism, and ableism (among others) that intersect with mental health concerns.


Emily utilizes a combination of Cognitive Behavioral Therapy (CBT), Dialectical Behavior Therapy (DBT), Acceptance and Commitment Therapy (ACT), mindfulness, play therapy, art, and writing to meet individual needs. Emily strongly believes that being able to tell your own story and have it heard is an important part of healing. She sees you as the expert on your own experiences, desires, and needs and views her role as providing support and guidance through the healing process.


David Ochoa, MC, NCC, LPC


As a Tucson native, David has the privilege to have worked in direct support services in our community for over 23 years.  As a graduate from the University of Phoenix, he holds a Masters degree in Counseling, and is a Licensed Professional Counselor and National Certified Counselor.


David has had the opportunity to work with many children, adolescents, adults and families to find healing in their lives.  Because we are all unique, he works to tailor his approaches towards the needs of the individual or family, and offers support in whatever way they require while on the path to healing.


He looks forward to meeting and working with you on your journey towards change and healing.

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Jessica Flayer, MA, NCC, LAC

In a world that is constantly moving, I believe it is helpful to have a safe place where you feel heard and supported. My aim is to assist you in identifying your strengths to improve your relationship with yourself and others. I believe your needs are unique which is why I use an integrative approach when working with children, teens, and adults. I provide strength-based interventions to assist you in uncovering your own resilience to manage challenges as well as to grow and improve your overall quality of life.

I specialize in working with those experiencing anxiety, depression, trauma, and adjusting to life changes. I draw from modalities such as cognitive behavioral, reality therapy, psychodynamic, and behavioral activation while also utilizing the lens of performance/sports psychology.

If you are seeking meaningful support or you are curious about how counseling may help you, I encourage you to call today as immediate appointments are available. Your path to healing and success can begin today!


Veronica Machado, MA

Veronica is a Tucson native, and prides herself in knowing the culture, people, and issues relative to her hometown. She completed her Master’s Degree at Northern Arizona University in Clinical Mental Health, received her undergraduate degree from Prescott College in Human Development & Psychology, and holds a post-Master’s certificate from the University of Denver in Equine Assisted Mental Health. She is a firm believer that the relationship between client and therapist is key to successful mental health services, and feels that finding the right professional to work with is as important as the techniques utilized in counseling. Veronica is passionate about social justice issues, equality, family systems, cultural issues, and psycho-education, and utilizes a mix of evidence-based and alternative modes of therapy tailored to each client’s needs. Veronica believes that we all experience human suffering at some of points of our lives, and it is important to understand the client’s experience and create a safe environment in which they feel unconditionally accepted. As a counselor, Veronica feels it is her duty to help clients realize their own answers and dreams on their journey.


Tim Mills, Chief Executive Officer and Clinical Director


Tim founded Cathexis in 2015 out of a desire to bring the highest quality of therapy services to the Tucson community and gold-standard training and supervision to therapists.  At the heart of this drive, Tim wanted to ensure that all members of the Tucson community would have the opportunity to receive services, and in that aim, he began forming partnerships with Cenpatico (AHCCCS) and the Tohono O’odham Nation.  Additionally, he structured the business model to be able to keep private-pay rates below the community average.


Prior to Cathexis, Tim worked in the field at Intermountain Centers for Human Development as a Clinical Supervisor, Pantano Behavioral Health Services as Deputy Clinical Director, and at Presidio Counseling and Center for Life Skills Development as a Therapist.  Prior to his work in the field, Tim has worked in several different careers, including Community Relations for a local university, Technical Support for Microsoft, Branch Manager for a bank, and he served time in the United States Marine Corps.


Tim enjoys many hobbies, and in true ADHD fashion, constantly seeks new experiences and challenges in both his work and play.  He is blessed to be married to his wife, Susie, for over 20 years and together they have raised two wonderful children, Tia and Ethan (and now they HAVE to behave, or they make the website incorrect!).


Susie Mills, Chief Administrative Officer