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Heather Carlisle PMHNP Psychedelic Ketamine Cathexis.jpg

Heather Carlisle, PhD, DNP, PMHNP, FNP

Medical Director

Heather is a board-certified psychiatric mental health nurse practitioner with a passion for helping others live a meaningful and joyful life. She focuses on establishing a strong therapeutic alliance with her clients and understands the importance of trust in the patient provider relationship.


Heather has been a nurse practitioner for eleven years. After graduating from the University of Arizona's nurse practitioner program in 2010, she began her first NP role in pain management, where she administered ketamine for treatment of severe chronic pain. Her NP experience runs the full spectrum from working in rural critical access hospitals to working in hospice and palliative care. It was her work with veterans at the end of life, helping patients and families through some of the toughest times of their lives, that inspired her to focus on mental health. Her healing nature and understanding of the importance of mental health in overall well-being is one of the many reasons she decided to pursue her career as a PMHNP.  


Heather is committed to giving care that is not only personalized, but also comprehensive. Her practice is grounded in scientific evidence blended with clinical expertise, incorporating the unique individual needs of the client. Working collaboratively with Cathexis therapists, she provides thorough evaluations and individualized care plans. She believes that a holistic and innovative approach is ideal to alleviate suffering and enhance well-being.  

Tim Mills, LPC Cathexis Psychedelics Ketamine Therapy Tucson Arizona

Tim Mills, LPC

Clinical Director & Psychedelic Integration Therapist

I first became interested in Ketamine-Assisted Psychotherapy and other Altered State therapies after seeing research and FDA trial results over the past several years.  Upon further direct training, including the MAPS (Multidisciplinary Association for Psychedelic Studies) MDMA-Assisted Therapy training, and exploration of the potential use of psychedelic medicines, I understand the potential of altered states when enveloped in a therapeutic mindset and environmental setting.

My work with new clients begins with ensuring they understand and feel comfortable with the treatment, and are able to set realistic intentions and expectations. I will also provide them with the guidance they need to help increase the chance for best outcomes. I understand the critical importance of set and setting, and am committed to ensuring each client is supported in their own unique needs.

I believe psychedelics can help people restructure their symbolic representations of fight/flight/support stimulus and encourage a healthy re-building of past negative experiences into a healthy sense of connection to others and to the desire to live a more fully-explored life.

 In addition to being the Clinical Director and a Psychedelic Integration Therapist at Cathexis Psychedelics, I am also the CEO/Clinical Director of Cathexis Tucson. Prior to establishing Cathexis, I worked 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 my work in the field, I took part in several different careers which utilized my education in business and finance, and I proudly served time in the US Marine Corps.


Jamie Furr, RN Cathexis Psychedelics Ketamine Therapy Tucson Arizona

Jamie Furr, RN

Registered Nurse

 Jamie was born & raised in Tucson where she worked as a medical assistant in an orthopedic surgeons office. With the motivation to switch gears she spent 5 years working in the medical cannabis industry while becoming a Registered Nurse. She received her degree in nursing from Pima Community College in December of 2019.  


In addition to being part of the Cathexis Psychedelics team, Jamie is currently studying to become a Psychiatric Mental Health Nurse Practitioner. Jamie specializes in loss & trauma recovery, with clinical experience in ketamine administration & monitoring. Jamie has always found herself in careers that involve working with the public.


With her passion for the medical field, as an RN she is able to work in environments that keep her compassionately surrounded by the community, driven, and continuously intrigued. She says, “To be a part of someone’s day at their most vulnerable is a privilege. To be a part of their feat, is a gift”.  

Dan Krepps LPC Cathexis Psychedelics Ketamine Therapy Tucson Arizona

Dan Krepps, LPC

Psychedelic Integration Therapist

Dan holds a Masters in Community Counseling and is a Licensed Professional Counselor as well as a Licensed Independent Substance Abuse Counselor.


Rooted in compassion, individualized treatment, and spiritual growth, Dan has focused on supporting people as they journey through substance abuse recovery; coping with mental illness and reintegration; trauma healing; crisis resolution; couples therapy; explorations of spirituality, self-esteem, and sexuality; fatherhood and parenting; process addiction; anger management, and more.  


Over the past two decades, Dan has offered clients the best service possible tailored to their individual needs. Dan has a depth of experience that he will utilize to assist you on your healing journey. Along with providing individual counseling and utilizing EMDR, he is on the cutting edge of Ketamine-Assisted Psychotherapy (KAP) which is shown to help clients gain relief from treatment-resistant depression and PTSD symptoms.


Your path is unique, and Dan will help you build on your strengths as you grow into your best self. 

David Ochoa LPC Cathexis Psychedelics Ketamine Therapy Tucson Arizona

David Ochoa, LPC

Psychedelic Integration Therapist

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, and offers support in whatever way they require while on their path to healing.  


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

Traci Grabb LPC Cathexis Psychedelics Ketamine Therapy Tucson Arizona

Traci Grabb, LPC

Psychedelic Integration Therapist

As a Licensed Professional Counselor, Traci provides therapy to adults, adolescents, and children. She sees her role as helping clients feel better in the areas of their 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).

Stephan Ackermann LPC Cathexis Psychedelics Ketamine Therapy Tucson Arizona

Stephan Ackermann, LPC

Psychedelic Integration Therapist

Stephan uses a person-centered approach to create a safe therapeutic process most relevant to the client. Stephan integrates evidence-based treatments (CBT, EMDR, Mindfulness) and a depth-psychology approach in working with adults on issues related to life transitions, trauma, PTSD, anxiety, depression, grief, and loss, as well as individuals seeking personal growth.  


Stephan also works with couples in need of resolving conflicts and improving their relationship.  Stephan is also trained in Ketamine Assisted Psychotherapy (KAP) and can provide the therapeutic space to integrate the experiential part of the therapy. The experience will be processed through a psychological framework to make meaning out of the experience and offer the potential to provide insights and incite active life changes where other treatment modalities have not worked.  


Stephan is a former vice president of the Southern Arizona Friends of Jung organization. In his work, Stephan promotes individuation, a process of transformation whereby the unconscious is brought into consciousness (dream analysis, sand-play, artistic expressions, active imagination) for an eventual integration of the psyche resulting in psychological health and somatic well-being.    


Stephan is originally from France and had a distinguished business career prior to becoming a psychotherapist. Stephan cultivates many interests including transpersonal psychology, philosophy, comparative religion, psychedelic therapy, and personal development. Stephan began his career as a therapist at Tucson Medical Center (Peppi’s House – TMC Hospice)

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