John Cline, Ph.D., D. ABSM, FAASM, is a licensed clinical psychologist and a diplomate of the American Board of Sleep Medicine. His primary professional interests include cognitive behavioral therapy, acceptance and commitment therapy (ACT), behavioral medicine, health psychology, behavioral sleep medicine, application of psychological approaches to the management of illness and optimization of health, and integration of powerful altered states of consciousness such as those occasioned by the use of psychedelic substances. His clinical interests include helping people cope with anxiety, depression, sleep difficulties, chronic health issues, work-related stress, and substance use problems as well as supporting individuals in the integration of altered states of consciousness.

Dr. Cline is a member of the American Association for the Advancement of Science, the New York Academy of Sciences, and the American Psychological Association, and he is a fellow of the American Academy of Sleep Medicine and the Connecticut Psychological Association. He is a past president of the Connecticut Psychological Association, and he served as a member of the Council of Representatives of the American Psychological Association. In 1996, he was awarded the American Psychological Association’s Karl F. Heiser Presidential Award for Advocacy in Psychology. He served as a consulting clinical supervisor in the Psychology Department at Yale University (New Haven, Connecticut) for 32 years and as an Assistant Professor of Clinical Psychiatry at Yale University School of Medicine (New Haven, Connecticut) for 20 years. While actively working in sleep medicine, health psychology, and general clinical psychology, he also writes the “Sleepless in America” blog for Psychology Today Magazine. He has been involved in research on the treatment of insomnia with cognitive behavioral therapy in patients with heart failure at Yale University School of Nursing (Orange, Connecticut), and he served as a therapist in an investigation of psilocybin for treatment of depression at Yale University School of Medicine.

Dr. Cline graduated from the University of Virginia (Charlottesville, Virginia) with a B.A. in Psychology in 1977, and he completed his Ph.D. in Clinical Psychology at the University of Toledo (Toledo, Ohio) in 1984. In 1981, he came to Connecticut for his predoctoral internship in Clinical Psychology at the West Haven Veterans Administration Medical Center (West Haven, Connecticut); while there, he received specialized training in Health Psychology. In 1985, after completing supervised postdoctoral work at the Alcohol Services Organization, West Haven Veterans Administration Medical Center, and Elmcrest Psychiatric Hospital (Portland, Connecticut), he became licensed as a psychologist. He continued to work in Connecticut in a number of positions at Elmcrest Psychiatric Hospital (Assistant Unit Chief, Inpatient Psychiatry; Developer and Director, Behavioral Medicine Program), Institute of Living (Director of Outpatient Services; Hartford, Connecticut), Grove Hill Medical Center (Clinical Director, Department of Psychiatry; New Britain, Connecticut), and Gaylord Hospital (Sleep Psychologist; Wallingford, Connecticut). He is currently working on several online projects, and he is a Sleep Psychologist at the Sleep Disorders Centers of Connecticut (Hamden, Milford, Branford, and Norwalk, Connecticut).

Dr. Cline is licensed in Connecticut. He joined Comprehensive Neuropsychological Services in 2022.



Comprehensive Neuropsychological Services, P.C.
1095 South Main St.
Cheshire, CT 06410

Telephone: Local  203-271-3809, Toll-Free  877-788-7822
Fax: 203-272-6968