Dr. Harold E. Doweiko is a licensed psychologist who has been on staff at the Gundersen-Lutheran medical Center in La Crosse, Wisconsin, for 19 years, working with the substance abuse rehabilitation program, the chronic pain management program, and the traditional adult mental health patients, including "dual diagnosis" patients. He has served with the La Crosse (Wisconsin) County Drug Court for several years, and as a professional witness on the topic of substance use disorders for federal and state courts in Kansas, Wisconsin, and Minnesota. Dr. Doweiko has served as an adjunct faculty member for colleges in both Wisconsin and Minnesota, most recently with the Viterbo University counselor education program in La Crosse, Wisconsin.