Ketamine Therapy Tulsa

For When You’ve Done the Work…and Still Don’t Feel Free

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 Marca Cassity, LMFT, RN - Licensed Marriage and Family Therapist and Registered Nurse for 30+ years

  • Licensed in Oklahoma (LMFT #11529), California (LMFT #92335), Oregon (LMFT #T1416). License numbers can be verified through each state’s licensing board.

  • Ketamine-Assisted Psychotherapy (KAP): Completed foundational training in KAP rooted in science and somatics (2024) and an advanced training on dosing and integration strategies (2025).

  • MDMA-Assisted Therapy: Completed the 100-hour MDMA Therapy Training Program (MAPS, 2022); therapist on a VA Medical Center study with combat veterans (2024–25).

  • Trauma training: EMDR (Native American Health Center of San Francisco), TF-CBT (Indian Country Child Trauma Center, University of Oklahoma).

Ketamine Therapy- is that really helpful?

You’ve read the self-help books, and worked hard in the therapy rooms. You’ve untangled family patterns, named your traumas, made profound changes, and built a life you can be proud of. Maybe even led others through their own healing. And yet—there’s still something beneath the surface. Dread. Numbness. The sensation of holding your breath without knowing why.

Sometimes, the tools you’ve collected aren’t enough to reach the parts that still feel frozen.

You’re not broken.

It’s a sign your healing is ready to deepen. Ketamine therapy can help support your nervous system in ways traditional therapy sometimes can’t.

What’s Possible with Ketamine-Assisted Psychotherapy

You may have seen the headlines: veterans reclaiming peace, researchers calling it a breakthrough, therapists integrating it into their practices. Even lawmakers are shifting. Psychedelic-assisted therapy isn’t fringe anymore—it’s an evolving, evidence-based option.

You may have also seen the concerning headlines, the misuse of this powerful medicine;  you’re not here to be risky. And you’re definitely not interested in unsupported at-home, mail-order ketamine, or sitting alone in an IV infusion clinic. 

You’re looking for: 

• A safe space with both medical and therapeutic emotional support 

• A practice rooted in trauma-informed care 

• A provider who welcomes your complexity and can handle the hard stuff

 • A setting that holds you gently but powerfully, with real skill

You deserve this kind of care and reassurance!

Hi, I’m Marca, and I’m Not Your Typical Ketamine Therapist in Tulsa.

I'm an LMFT and registered nurse with over 30 years of experience in trauma, crisis, and integrative healing.

I'm also a psychedelic-assisted therapy provider with deep personal and professional roots in this work.

As a Native American practitioner, I’ve participated in Native-led and legal Ayahuasca and Peyote ceremonies for nearly two decades.

I came to ketamine-assisted psychotherapy through the people I was already serving. As a trauma therapist, I kept meeting people who had done years of therapy, had real insight, and in some cases real improvement, but who still felt stuck. They needed a different door in. Ketamine therapy, held inside a real therapeutic relationship, is one of the most effective approaches I’ve found.

I am also not your average psychedelic-assisted therapist with a quick weekend training

I’ve worked as an EMT and RN for over 30 years, including in emergency rooms and ICUs. I’ve led people in their deepest trauma healing as a licensed therapist for over 7 years and have held space for first responders, therapists, artists, and seekers.

I completed the 100-hour MDMA-Assisted Therapy Training Program through MAPS (the Multidisciplinary Association for Psychedelic Studies) in 2022, as well as two-part training in ketamine-assisted psychotherapy: a foundational program rooted in science and somatics, and an advanced program in dosing and integration strategies. I’ve also worked as a researcher in MDMA-assisted therapy with veterans at a VA medical center and served on the MAPS Diversity Advisory Council. I’ve published and spoken extensively on psychedelic-assisted therapy.

This Isn’t About Fixing You. It’s About Freeing What’s Been Held Back.

Clients I work with have described:

• Releasing trauma without retraumatizing their nervous system 

 • Opening to joy and intimacy without guilt or self-sabotage 

• Needing less, or no, medication to manage daily anxiety 

• Feeling tenderness toward younger parts of themselves 

• Reconnecting with their own sense of purpose or spirituality (without the “hell” trip)

This work isn’t a magic pill– but in the right hands and with the right container, it’s profoundly transformative.

What Ketamine Therapy in Tulsa Looks Like

This isn’t a cold, clinical protocol or an uncontained “trip.” It’s a deeply intentional process, one rooted in therapeutic alliance, somatic awareness, and real-world integration.

With me, ketamine-assisted psychotherapy includes:

1. Intake and Consultation (60 min, $225) — We talk about your history, goals, and whether KAP is a good fit. If it seems right, you’re referred for medical screening.

2. Medical screening — A prescribing psychiatrist reviews your health history, current medications, and any risk factors. If you are cleared for ketamine therapy, the psychiatrist prescribes the appropriate dosage of medicine.

3. Preparation sessions (60 min, $225) — We build trust, clarify your intentions, and practice the grounding skills you’ll use during the medicine session.

4. Medicine session (3-4 hours, $750) — In my private Tulsa office, you take the prescribed ketamine (typically as a lozenge) in a comfortable, quiet setting. I’m with you the entire time, monitoring both your emotional experience and your physical safety. You’ll need a ride home afterward from a trusted person.

5. Integration sessions (60 min, $225) — In the days after, we make meaning of what came up and translate it into lasting change in your daily life.

Throughout, you are supported in emotional containment and nervous system care. You are never alone. You are never pushed. This is not a psychedelic “trip”—it’s a healing experience, witnessed, guided, and supported from start to finish.

Let’s get started

You don’t have to keep managing, coping, or spiraling alone. You’ve survived so much. Maybe now it’s time to feel something more: calm, joy, connection, freedom.

If you’re curious about ketamine therapy in Tulsa and looking for someone who honors your complexity while keeping you safe—let’s talk.

 
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 Recognition and Features

FAQs about Ketamine Therapy in Tulsa, OK

  • Yes. Ketamine is legally prescribed by licensed providers. It is considered “off-label” use, which is green lit by the FDA and DEA. I work closely with trusted medical collaborators to ensure safety and compliance.

  • This therapy isn’t for everyone, which is why every client is screened first. A prescribing psychiatrist reviews your health history, current medications, and risk factors before anything is prescribed, and dosing is tailored to you. During medicine sessions, I’m with you the entire time, and as a Registered Nurse with ER and ICU experience, I monitor your physical safety as well as your emotional experience. If ketamine isn’t the right fit, we’ll talk about other options, like EMDR.

  • We’ll approach this carefully. Dosing is conservative and tailored to you. This isn’t escapism—it’s a contained therapeutic process, grounded in consent and care. 

  • Never. I’m present throughout the medicine session, monitoring your experience and ensuring emotional, physical, and spiritual safety.

  • Nope. This work meets you where you are—whether you’re atheist, agnostic, mystical, or somewhere in between. All belief systems (or lack thereof) are welcome.

  • Not usually. We will discuss this together and I work closely with a prescribing psychiatrist who will assess any possible medicine interaction.

  • It varies. Some clients feel a shift after just a few sessions; others dive into longer-term work. We’ll tailor it to your needs.

  • I’m a Licensed Marriage and Family Therapist (OK #11529, CA #92335, OR #T1416) and a Registered Nurse with over 30 years of ICU and emergency room experience. That dual background matters with ketamine: I’m trained both to hold deep emotional work and to recognize what’s happening in your body. I’ve completed advanced Ketamine-Assisted Psychotherapy training, was trained by MAPS in MDMA-assisted psychotherapy for PTSD, and served as a therapist on an MDMA-assisted therapy study with combat veterans at the VA Medical Center in Vancouver, WA. My approach is holistic and trauma-informed.

  • Hour-long preparation and integration sessions are $225. Medicine sessions are $750.
    We’ll discuss fees and treatment protocol more fully during our consultation.

    Many clients find the investment deeply worthwhile.

    Please note that insurance doesn’t usually cover medicine sessions. Preparation and integration sessions may be covered, but that depends on your insurance and there is no guarantee.

It is time to FEEL the change

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