Nancy L. Johnston is a Licensed Professional Counselor and Licensed Substance Abuse Treatment Practitioner in private practice in Virginia. She has a BS in Psychology from the College of William and Mary and a MS in Counseling Psychology from Virginia Commonwealth University.

With thirty two years of clinical experience, she has developed the approach presented in her book, Disentangle, from both her professional and personal experiences. Johnston specializes in treating adolescents and adults. She works with a wide range of emotional and behavioral issues, and has always had a special interest in addiction and its effects on both individuals and family systems.

Johnston lives with her husband and daughter in an old house on a river in the Valley of Virginia.