OUR THERAPISTS - ILLINOIS

stephanie Horgan

Stephanie has a passion for working with those who are seeking help for various gastrointestinal conditions and symptom relief. Stephanie is open about her own GI condition of Crohn's disease, which is what inspired her to go into this specialty. She has spoken at numerous conferences and groups for both patients and practitioners.


Laurie Keefer, PhD

I am a clinical health psychologist with over 15 years of experience in the development, testing and application of behavioral treatments for the full range of digestive disorders. I have expertise in gut-directed hypnotherapy and won an early career achievement award in 2014 from the American Society of Clinical Hypnosis for my commitment to the scientific study and application of hypnotherapy to chronic gastrointestinal conditions. I particularly enjoy working with patients suffering from IBS because I not only get to see improvements in quality of life with hypnosis, but also clear reductions in IBS symptoms such as abdominal pain, bloating, diarrhea and constipation.


Dr. marc Oster

Dr. Oster is a Professor of Clinical Psychology at Argosy University Schaumburg Campus. Before joining Argosy University, Dr. Oster was a Professor and Core Faculty member at Adler School of Professional Psychology. He has taught in the areas of clinical hypnosis, forensic psychology, and behavioral medicine. In addition to teaching, Dr. Oster maintains a private practice in Algonquin and St. Charles, IL. His practice interests include serving patients with medical problems, anxiety, depression, psychological testing and evaluation of police officer candidates.


Dr. Tiffany Taft

I am a clinical psychologist with more than 10 years of experience working with patients living with chronic digestive illness. After training at the Center for Psychosocial Research in GI at Northwestern University, I started a private group practice in 2012 which has grown to meet the needs of patients living with IBS and other chronic conditions. My approach to treatment is to teach clients skills that will last a lifetime so they can better self-manage issues that come with having a chronic illness; as such, I find hypnotherapy to be an excellent tool to reduce IBS symptoms and improve quality of life.