Brenda Lehman, Ph.D.

Brenda Lehman is a Licensed Clinical Psychologist and APIT (authority to practice interjurisdictional telepsychology) provider. She earned her Ph.D. from the University of Kansas, where she completed specialized training working with individuals and couples, in group therapy, and in mindfulness. Additionally, at the University of Kansas Medical Center, Dr. Lehman further specialized in Motivational Interviewing, a technique to help clients identify their own readiness for change and best options for making changes in their lives. Dr. Lehman previously worked at the NorthShore University Health System Medical Group as a cognitive-behavioral psychologist and as a psychologist for the Department of Veterans' Affairs before co-founding Alliance Cognitive Behavioral Therapies. Dr. Lehman’s clinical work focuses on the treatment of anxiety and anxiety-related disorders, obsessive-compulsive disorder, stress, adjustment issues, couples/relationship concerns, and health-related issues, including health anxiety and coping with chronic and acute health conditions.

Dr. Lehman is licensed to practice telehealth under PSYPACT. If you will not be physically located in Illinois for your telehealth visit, please confirm with Dr. Lehman that she can practice in the state you are located.

Liza Guequierre, Ph.D.

Liza Guequierre is a Licensed Clinical Psychologist. Dr. Guequierre’s last day at Alliance CBT will be November 30, 2026.