Autism Spectrum Disorders

Lee S. Cohen, MD, is an associate professor of clinical psychiatry at Columbia University Irving Medical Center, maintains a clinical practice focused on expert and complex diagnostics, and is considered an international expert in clinical psychopharmacology. He is also the director of the Clinical Neuroscience Center, involved in innovative development and discovery of new compounds for neuropsychiatric conditions and directly consults with multiple pharmaceutical companies worldwide.

Dr. Cohen graduated from the Sophie Davis Biomedical Education Program at the CUNY School of Medicine at The City College of New York, an accelerated six-year BS/MD program. He then completed his MD at SUNY Stony Brook School of Medicine.

He trained in pediatrics and adult psychiatry at Mount Sinai Hospital in New York City, followed by a fellowship in child and adolescent psychiatry at New York Presbyterian Columbia University Irving Medical Center. He served for 20 years as the director of psychiatry at the Clinical Neuroscience Center at Mount Sinai West Hospital.

He is a senior reviewer for multiple journals, including the Journal of Child and Adolescent Psychopharmacology, the Journal of Developmental and Physical Disabilities, and the International Journal of Autism and Related Disabilities.

Cohen teaches and presents research domestically and internationally at meetings such as those of the American Psychiatric Association and at major universities around the country.

Samuel Mackenzie, MD, PhD, is an Assistant Professor of Child Neurology, Neuromuscular Disease, and Neuroscience at University of Rochester Medical Center. He completed his undergraduate studies at Cornell University before earning a master's degree in exercise science at the University of Delaware and his MD and PhD degrees at SUNY Upstate Medical University. He completed residency in child neurology at the University of Michigan and fellowship in neuromuscular medicine at The Ohio State University and Nationwide Children's Hospital.

Dr. Mackenzie's research interests broadly involve developing new ways to restore motor function in patients with neurological disease and developing gene-based treatments for patients with neuromuscular conditions. He also has an interest in health policy and advocacy, specifically as these relate to how scientific discoveries can best be leveraged for societal good in an equitable and cost-effective manner.

John Paul McHugh, MD, is an obstetrician-gynecologist and lifestyle medicine specialist in southern California. He has always placed wellness at the center of his work, in both delivering babies and improving practice standards. Dr. McHugh believes that bringing lifestyle medicine to the center of health and wellness empowers patients to make the change they seek and enjoy the benefits of true wellness.

He is a graduate of Harvard Medical School and the Massachusetts Institute of Technology and a fellow of the American College of Lifestyle Medicine. He served as a department chair at Scripps Mercy Hospital in San Diego and is now the chair-elect for the American College of Obstetricians and Gynecologists for California.

He has published several articles in the American Journal of Lifestyle Medicine and served as a peer reviewer for many articles. He contributed to the first textbook of lifestyle medicine in women's health: Improving Women's Health Across the Lifespan.

Allison Young, MD, is a board-certified psychiatrist providing services via telehealth throughout New York and Florida.

In addition to her private practice, Dr. Young serves as an affiliate professor of psychiatry at Florida Atlantic University Charles E. Schmidt College of Medicine. She previously taught and mentored medical trainees at the NYU Grossman School of Medicine. She speaks at national conferences and has published scientific articles on a variety of mental health topics, most notably on the use of evidence-based lifestyle interventions in mental health care.

Young graduated magna cum laude from Georgetown University with a bachelor of science degree in neurobiology and theology. She obtained her doctor of medicine degree with honors in neuroscience and physiology from the NYU Grossman School of Medicine. She continued her training at NYU during her psychiatry residency, when she was among a small group selected to be part of the residency researcher program and studied novel ways to assess and treat mental distress, with a focus on anxiety, trauma, and grief.

During her psychiatry training, Young sought additional training in women’s mental health and cognitive behavioral therapy. She has also studied and completed further training in evidence-based lifestyle interventions in mental health care, including stress management, exercise, and nutrition. She is an active member of the American College of Lifestyle Medicine, through which she helps create resources as well as educate physicians and patients on the intersection of lifestyle medicine and mental health.

Angela D. Harper, MD, is in private practice at Columbia Psychiatric Associates in South Carolina, where she provides evaluations, medication management, and psychotherapy for adults.  

A distinguished fellow of the American Psychiatric Association, Dr. Harper has worked as a psychiatrist throughout her career, serving a large number of patients in various settings, including a psychiatric hospital on the inpatient psychiatric and addiction units, a community mental health center, and a 350-bed nursing home and rehab facility. She has provided legal case consultation for a number of attorneys.

Harper graduated magna cum laude from Furman University with a bachelor's degree and cum laude from the University of South Carolina School of Medicine, where she also completed her residency in adult psychiatry. During residency, she won numerous awards, including the Laughlin Fellowship from the American College of Psychiatrists, the Ginsberg Fellowship from the American Association of Directors of Psychiatric Residency Training, and resident of the year and resident medical student teacher of the year. She was also the member-in-training trustee to the American Psychiatric Association board of trustees during her last two years of residency training.

Harper volunteered for a five-year term on her medical school's admission committee, has given numerous presentations, and has taught medical students and residents. She currently supervises a nurse practitioner. She is passionate about volunteering for the state medical board's medical disciplinary commission, on which she has served since 2015.

She and her husband are avid travelers and have been to over 55 countries and territories.