Colleen Ehrnstom, Ph.D., ABPP


Louisville, COLORADO

Colorado Psychology License # 2785

Phone or text: (720) 446-8035



I am a licensed clinical psychologist with a specialty practice in Acceptance and Commitment Therapy (ACT). Areas of expertise include insomnia and other sleep disorders, anxiety, and depression.

I received my undergraduate degree from the University of Michigan, a master’s degree from Boston University, and my doctorate in clinical psychology from the University of Colorado at Boulder. I have obtained additional post-license certification in Behavioral and Cognitive Therapy (BCT) from the American Board of Professional Psychology (ABPP).

BCT (used interchangeably with CBT) is an effective intervention for a wide range of disorders; I specialize in CBT for insomnia (CBT-I). I have presented on CBT-I at national organizations including the Association of Contextual Behavioral Science (ACBS) and the Association of Behavioral and Contextual Therapy (ABCT). I am the co-author of the book  End the Insomnia Struggle: A Step by Step Guide to Help you Get to Sleep and Stay Asleep which offers a comprehensive, personalized sleep program that integrates the physiology of sleep, cognitive behavioral therapy for insomnia (CBT-I) and acceptance and commitment therapy (ACT). End the Insomnia Struggle has been reviewed and approved to be listed in the designated ABCT Self-Help Book Recommendations directory.

I am currently working full-time at the University of Colorado at Boulder in the Counseling and Psychiatrist Services (CAPS) with a small private practice in the evenings. I am proud to say I have been practicing ACT since 2000 and enjoy sharing the benefits of this intervention with clients, clinicians-in-training, and other like-minded colleagues. I have presented at numerous conferences for ACBS (Association of Contextual Behavioral Science) and the Boulder County community on the topics of ACT Skills, using metaphors in the therapy room, using ACT to enhance CBT-I, and the role of emotions in supervision.