About Marca Cassity Therapy and Counseling

With over thirty years of experience in the healing arts, working with renowned therapists, spiritual teachers, artists, academics, and medicine people from around the world, I help clients heal and find their authenticity and empowerment.

I believe your thoughts and feelings are connected to your physical health, your relationships, and even your spiritual life. I’ll guide you in taking into consideration all five areas (mental, emotional, physical, relational, and spiritual) to actualize your authentic, creative, effective, and loving self.  

I work across several therapeutic modalities, including:

  • Eye Movement Desensitization and Reprocessing (EMDR)

  • Attachment-based Therapy for Relationships

  • Trauma-Focused Cognitive Behavioral Therapy (TF-CBT)

  • Nonviolent Communication (NVC)

  • Ketamine-Assisted Psychotherapy (KAP)

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My journey as a therapist began by overcoming my own trauma and developing resilience and empowerment as a Two-Spirit, queer, mixed-race Native American who grew up on the Osage reservation of Oklahoma. I am an active and enrolled citizen of the Osage Nation with lineage from the Kaw, Susquehannock, and Saponi tribes as well.

I hold a Master of Arts in Counseling Psychology from John F. Kennedy University in Berkeley, California, and am a Licensed Marriage and Family Therapist in the states of California (LMFT #92335), Oregon (LMFT #T1416), and Oklahoma (LMFT #11529).

I completed my training in Eye Movement Desensitization and Reprocessing (EMDR) at the Native American Health Center of San Francisco, and my training in Trauma-Focused Cognitive Behavioral Therapy (TF-CBT) at the Indian Country Child Trauma Center at the University of Oklahoma.

My foundational training was in the study and teaching of Nonviolent Communication (NVC) for over 20 years, and I am a graduate of the North American Nonviolent Communication Leadership Program. Another major life enhancement that helps me attune to clients is the formal study of meditation, and multiple cross-cultural spiritual modalities living for 4 years in Boulder, Colorado and another 15 years in Berkeley, California, which led to a period of residential study of Advaita Vedanta at Arsha Vidya Pitham in Rishikesh, India.

Before becoming a psychotherapist, I was an accomplished music major and performing songwriter with a deep interest in modalities for understanding stage fright/performance anxiety. I also completed a Bachelor of Science in Nursing at the University of Oklahoma, and have been a Registered Nurse for 33 years, with specializations in ICU and emergency room nursing. I was a first responder at the Oklahoma City bombing in 1995. This work and life experience deepened my understanding of trauma and the treatment of PTSD for first responders. My artistic creativity along with my medical knowledge informs my approach to the physical and nervous system components of holistic well-being.

In addition to a depth of personal work in my own therapy, I have found healing in legal, therapeutic use of plant-spirit medicine and integration work. I have been on the advisory council on diversity for the Multidisciplinary Association of Psychedelic Studies (MAPS), and am trained in MDMA-assisted psychotherapy for PTSD, for FDA/DEA-approved research studies. I was a therapist on an intensive five-month study at a VA Medical Center with combat veterans with PTSD, utilizing MDMA-assisted psychotherapy in 2024-25. I have completed advanced training in Ketamine-Assisted Psychotherapy (KAP).

I am also a speaker and critically acclaimed songwriter, who writes about overcoming hardship through compassion, empathy, community, heritage, humor, and connection to nature. You can find more information about my most recent music project that was nominated for a Native American Music Award here.