Mark Sisti

Mark Sisti, PhD is the founder and director of Manhattan, Brooklyn & Suffolk Cognitive-Behavioral, PLLC. He is a graduate of Hofstra University, a licensed psychologist and a adjunct professor at Yeshiva– Ferkauf University, Department of Clinical Psychology. Dr. Sisti is a Diplomat, Certified Cognitive Therapist & Trainer within The Academy of Cognitive Therapy. He is also a peer-reviewed trainer in a more contemporary experiential CBT called Acceptance and Commitment Therapy (ACT). His advanced training in cognitive therapy was under the tutelage of CBT master clinician, Robert Leahy, Ph.D., at The American Institute for Cognitive Therapy, where Dr. Sisti was formerly the Associate Director.

Dr. Sisti has extensive experience with anxiety disorders through his work at Freedom From Fear, a nationally recognized anxiety and mood disorder advocacy organization, where he was formerly the Director of Cognitive Therapy and where he also participated as a Certified Cognitive Therapist in research trials for N.Y.S. Psychiatric Institute & Columbia Presbyterian. He has also supervised doctoral interns from both Yeshiva-Ferkauf and Hofstra Universities and is a volunteer adjunct clinical supervisor for Yeshiva University Graduate School of Psychology. He trains various mental health experts and professionals in CBT, mindfulness based CBTs, such as ACT, and has presented trainings and symposia for the American Psychiatric Association, the American Psychological Association, Association for Contextual Behavior Therapy and Suffolk County Psych Assoc. He has also given numerous seminars and trainings on ACT and other mindfulness based CBTs. Dr. Sisti is also a published author on cognitive therapy, mindfulness, ACT, and Compassion Based Therapy, and Functional Analytic Therapy (FAP).

As a committed life long learner, and in an ongoing effort to keep up with state of the art CBT and its newest developments, he has committed himself and his staff to ongoing supervision and training in, “third generation” CBTs and mindfulness informed CBT, e.g., DBT, FAP, Compassion Informed Therapy and ACT. He has extensive training and experience with ACT through its founders and leaders, Dr. Steven Hayes & Kelly Wilson. Additional ACT experience comes through being a past president of the NYC chapter of ACBS (Association of Contextual Behavioral Science) ACBS-NYC, and founder of Long Island ACBS, a local ACT affiliate, ACT training and peer study group. He has also trained repeatedly with master third generation clinicians such as; (DBT)Dr. Marsha Linehan & Compassion Focused Therapists (Dennis Tirch, Tara Brach & Christine Neff/Chris Germer). He has also trained and given trainings in “interpersonal” CBTs such as FAP with Drs. Mavis Tsai & Bob Kohlenberg, along with completing a one year relational psychoanalytic training at the Mitchell Institute for Relational Psychoanalysis. He is also founder & president of The “Long Island-CBT Network (www.LICBT.org)”, a LI based professional CBT/EBP networking & dissemination organization as well as being on the board of Suffolk County Psych Association. Dr Sisti, also incorporates the mindfulness insights he has garnered as a life long practitioner of TM (Transcendental Meditation), Ashtanga Yoga, and Aikido 1st Dan into his life and work.