Recent research demonstrates that ketamine-assisted psychotherapy offers response rates of more than 70% for treatment resistant depression. This innovative new treatment approach is a highly effective clinical tool for treatment and exploration. In this one-day workshop you will learn the research in support of this novel approach. You will also hear about the proposed mechanisms of ketamine on neuroplasticity and the default mode network. We will cover the assessment for inclusion and exclusion, risks and potential benefits, side effects, and specifically what kind of psychotherapy is most effective with ketamine. 

The presenters will discuss the importance of integration practices that demonstrate how to support long term durability. Ketamine-assisted psychotherapy also provides a readily-available training ground for future psychedelic treatments, which are already in Phase III trials for psilocybin-assisted psychotherapy for Major Depression, as well as MDMA-assisted psychotherapy for PTSD. Will Van Derveer MD from Integrative Psychiatry Institute, and Scott Shannon MD from Wholeness Center, will present specific protocols applied in their active practices and help welcome you into this new paradigm in mental health care. 

Will Van Derveer, MD

Will Van Derveer, MD


Will Van Derveer, M.D.
Medical Director, Integrative Psychiatric Healing Center
Assistant Clinical Professor, University of Colorado School of Medicine
Co-Founder, Integrative Psychiatry Institute
Diplomate, American Board of Integrative Medicine

Will Van Derveer, M.D. is co-founder of Integrative Psychiatry Institute, where he teaches mental health providers how to work safely and effectively with this potent catalyst for change. His clinic in Boulder, CO provides ketamine-assisted psychotherapy and integrative psychiatry.

In addition to his clinical practice and teaching, he has been involved with several studies sponsored by MAPS investigating MDMA-assisted psychotherapy for chronic, treatment-resistant PTSD, now in Phase III under break-through designation by FDA.

He regards unresolved emotional trauma as the most significant root cause of psychiatric symptoms in integrative psychiatry practice, along with gut issues, hormone imbalances, inflammation, mitochondrial dysfunction, and other integrative medicine challenges. He is trained in Somatic Experiencing, EMDR, Internal Family Systems, and other psychotherapy techniques. An avid meditator, he has been a meditation instructor since 2004.

Dr. Van Derveer is a diplomate of the American Board of Integrative Medicine (ABOIM). He attended medical school at Vanderbilt University.

Scott Shannon, MD

Scott Shannon, MD

Scott Shannon, MD
Assistant Clinical Professor, Department of Psychiatry, University of Colorado

Scott has been a student of consciousness since his honor’s thesis on that topic at the University of Arizona in the 1970s under the tutelage of Andrew Weil. Following medical school, Scott studied Jungian therapy and acupuncture while working as a primary care physician in a rural area for four years. MDMA assisted psychotherapy became a facet of his practice before this medicine was scheduled in 1985. He then completed a Psychiatry residency at Columbia program in New York. Scott studied cross-cultural psychiatry and completed a child/adolescent psychiatry fellowship at the University of New Mexico.

Scott has published four books on holistic mental health including the first integrative psychiatry textbook for this field in 2001. His pediatric mental health textbook was published in 2014. Scott is a past President of the American Holistic Medical Association and a past President of the American Board of Integrative Holistic Medicine.  

In 2010 he founded Wholeness Center, in Fort Collins. This innovative clinic provides cross-disciplinary evaluation and care for all mental health concerns. Scott serves as a site Principle Investigator and therapist for the Phase III trial of MDMA assisted psychotherapy for PTSD sponsored by Multidisciplinary Association for Psychedelic Studies (MAPS). He has also published numerous articles about his research on cannabidiol (CBD) in mental health. Currently, Scott works extensively with ketamine-assisted-psychotherapy.  He lectures all over the world to professional groups interested in a deeper look at mental health issues, safer tools and a paradigm shifting perspective about transformative care.


Horizons is proud to present its first series of classes for professionals seeking to learn about psychedelic therapy.

These classes offer mental health and medical professionals detailed, technical information about psychedelic therapy and direct access to experts and practitioners.

Classes will held in small groups at the historic Down Town Association in the Financial District, which also offers lodging for traveling participants.

APA CE credits for psychologists are available.


Friday, October 11th, 2019


9:00am | Convene
9:30am | Morning session
1:00pm | Break for lunch
2:00pm | Reconvene
2:15pm | Afternoon session
5:15pm | Session concludes
6:00pm | Adjourn



The Down Town Association

Since its founding in 1859, the Down Town Association remains an island of quiet civility in a bustling Lower Manhattan as a locus for nourishment, entertainment, relaxation or quiet discourse.

For DTA’s Map & Instructions on how to get there, check here.


  • These classes are designed with medical and mental health professionals and students in mind, but others are also welcome. We will contact you after you register to confirm eligibility if there are any questions.

  • The venue’s dress code is business casual attire, without t-shirts, jeans, or sneakers.

  • Participant photography, videography, and audio recording is not permitted.

  • Registrations are non-refundable but are transferable.

  • Registration for classes is separate from conference registration, which must be purchased independently.

  • Please click here to read our Safer Space and Code of Conduct Policy, which applies to all persons in attendance.


  • The venue for classes is the Down Town Association, 60 Pine Street, New York, NY 10005.

  • Convenient transit includes the 4, 5, 2, 3 at Wall Street and J/Z at Broad Street, or East River Ferry at Wall Street/Pier 11.

  • On-site lodging is available at discount rates at the Down Town Association. Inquire for more information.

  • There is no on-site parking and street parking is unlikely. Commercial garages are located nearby.

  • Light refreshments in morning, mid-afternoon and end-of-day are provided.