Mark Landreneau
Clinician
About Me
In Man’s Search for Meaning, Holocaust survivor and neuropsychiatrist Victor Frankl
offered a thought experiment: live your life as though it were the second time around.
Imagine on your death bed the universe offered you a do over, and you start over today.
Now you are free. You already suffered and made your mistakes. Live in the present
and make choices with your authentic self. Imagine becoming the best version of you.
What might be possible?
I work to provide my patients the safety, skills, and care to live the second time around.
Psychedelic medications like ketamine can serve as a tool to access and heal core
wounds, a form of reparenting oneself. Within this relational and developmental
framework, my practice focuses on mood disorders such as depression, anxiety, and
trauma.
What is an unusual historical artifact is that the nervous system is the only organ system
claimed by two specialties—neurology and psychiatry. I trained as a general neurologist
and neurocritical care physician at Yale, learning to care for some of the sickest patients
in the hospital. As I grew deeper into my work and witnessed the emotional toll of
“neurological” disease, I became more and more interested in problems and solutions at
the frontier of neuropsychiatry. I started working at the collaborative, community based
psychiatry clinic here at Centered. I work with my patients in a holistic, humanistic
way—life stories and lived experiences over labels. My general approach is to use the
fewest, lowest dose medications as necessary and pair them with therapeutic, growth-
oriented work.
In addition to neuroscience, I lean on wisdom and techniques from a variety of schools
of therapy including but not limited to Acceptance and Commitment Therapy, Internal
Family Systems, Emotion Focused Therapy, and Trauma Incident Reduction. I also
value a variety of traditional and non-traditional wisdom traditions. I want to empower
my patients in their own healing journeys. I have particular interests in mood disorders,
traumatic brain injury, the autistic spectrum, attention problems, grief, identity issues,
end of life, and neuropsychiatric problems amenable to psychedelic approaches. I also
emphasize general health and wellness along with motivation, goal setting, and life
restructuring.
In my spare time, I enjoy adventures in nature with my wife and kids, playing pickup
soccer with the local crowd, reading and writing non-fiction and fiction, exploring the
arts, cooking for others, and pondering the night sky.
Education, Training, and Certification
BA, Philosophy, University of Dallas, 2007
MD, Columbia University Vagelos College of Physicians and Surgeons, 2012
Neurology Residency, Yale-New Haven Hospital, 2016
Neurocritical Care and Emergency Neurology, Yale New-Haven Hospital, 2018
American Board of Psychiatry and Neurology, Neurology Certification, 2016
Brain Stimulation Intensive Training, TMS Track, Medical University of South Carolina,
2023
Ketamine Training Center, Fundamentals of Ketamine Assisted Psychotherapy, 2024
Colorado Clinical Facilitator of Natural Medicine, InnerTrek Training Program, 2026