Dimitris Kiosses, Ph.D.

Matthew R. Ebben, PhD obtained his Ph.D. in Psychology at the City University of New York in 2004. While at the City University, Dr. Ebben completed an internship in sleep medicine at the New York Methodist Hospital. He subsequently came to Weill Medical College of Cornell University to complete a post-doctoral fellowship in sleep medicine in the Department of Neurology and Neuroscience. He is now an Associate Professor in the Department of Neurology and is a licensed Psychologist, Diplomate of the American Board of Sleep Medicine, and holds a certification in Behavioral Sleep Medicine. Research interests include insomnia, sleep apnea, and medical device development.

JoAnn Difede, Ph.D., is a Professor of Psychology in Psychiatry at Weill Medicine, an Attending Psychologist at the New York Presbyterian Hospital, and Director of the Program for Anxiety and Traumatic Stress Studies (PATSS). She is internationally recognized for her pioneering work using virtual reality technology in the treatment of PTSD consequent to the WTC attack of September 11, 2001, and more recently in the treatment of combat-related PTSD. Dr. JoAnn Difede is currently serving as the lead PI of a large multi-site Department of Defense funded clinical trial contract entitled, "Enhancing Exposure Therapy for PTSD: Virtual Reality and Imaginal Exposure with a Cognitive Enhancer," which is investigating how the use of virtual reality and the pharmacologic agent, D-Cycloserine, may help accelerate recovery from combat-related PTSD among U.S. service members deployed to Iraq and Afghanistan. Dr. Difede has served as the PI of several NIH-funded treatment studies concerning the development of innovative treatments for PTSD. She is also the recipient of many grants and corporate medical contracts for projects concerning the delivery of optimal care for trauma survivors and their families, both from private foundations and publicly held Fortune 500 corporations. Her treatment research spans survivors of burn injuries, terrorism, and occupations at-risk for PTSD, including U.S. soldiers deployed to OIF/OEF/OND, firefighters, police officers, and disaster rescue and recovery workers.Dr. Difede has advised many corporations, non-profit organizations, and governmental agencies in the U.S. and internationally regarding the implementation of best practices for the screening, evaluation, and treatment of trauma and PTSD. Dr. Difede has served on NIH special emphasis review panels on occupations at-risk for trauma and PTSD and CDMRP review panels, among others. She currently serves on the scientific advisory board of the Anxiety Disorders Association of America (ADAA) and the advisory board of the Jericho Project, a non-profit foundation serving homeless veterans. She recently completed a four-year term on the editorial advisory board of the Journal of Traumatic Stress.Dr. Difede received the 2010 Award for Outstanding Contributions to the Practice of Trauma Psychology from the American Psychological Association’s Division of Trauma. In addition to her scholarly endeavors, her work has been featured in many popular media venues including the New Yorker, the NY Times, Newsweek, the Washington Post, Scientific American, and many television programs, including a recent appearance on Charlie Rose: The Brain Series’ episode on PTSD, CNN, NBC, and ABC’s World News Tonight with Peter Jennings. Notably, she was featured in New York magazine’s Best Doctors issue in 2005 for her work developing a virtual reality-based treatment for WTC related-PTSD, and was profiled in The Lancet in September 2011, for the tenth anniversary of the WTC attacks, for her work developing innovative treatments for PTSD.To schedule appointments:Call (212) 821-0783

Marina is a licensed clinical social worker who specializes in treatment of individuals, couples and families. Marina is experienced in utilizing eclectic therapeutic modalities to help meet each client’s specific needs. Some of Marina's specialties include depression, anxiety, PTSD, anger, life transitions, family conflict, relationship issues and stress management. Marina specializes in using cognitive behavioral therapy in treatment to help clients successfully overcome challenges and achieve their goals. Marina's therapeutic approach is compassionate, supportive and empathetic. Prior to joining the Collaborative Care Center, Marina worked as a Senior Clinician (2013-2018) at an OMH Outpatient Mental Health Clinic, where she provided psychotherapy, facilitated groups and supervised clinicians. She is passionate about the therapeutic process and helping clients develop emotional self-awareness and strategies towards positive change.