Dr. Kristen Mulcahy is an expert in the use of Exposure and Response Prevention (ERP) therapy to treat children and adults suffering from obsessive compulsive disorder. She is the founder of Pocket Therapist LLC and the creator of the Live OCD Free, a mobile therapy application available in the iTunes store. She is the director of the Cognitive Behavioral Institute in Cape Cod, Massachusetts. Dr. Mulcahy received her Ph.D. in clinical/school psychology from Hofstra University. She developed a specialty in OCD spectrum disorders through research and clinical work at the Bio-Behavioral Institute, an internationally renowned treatment and research center in New York. In addition to treating patients, Dr. Mulcahy runs support groups for OCD suffers.

Dr. Mulcahy lives in Falmouth, Mass. with her husband and three children.