Dr. Irene Cergnul completed her postgraduate training at Bronx Lebanon Hospital Center in New York and after her final year as Chief Resident was recruited as Assistant Professor/Faculty in the Depart of Family Medicine. She worked as the Medical Director in the in-patient service and taught residents in training for the next four years. She was a Research Coordinator involving multiple studies on HIV, depression, as well as neuropathy, and is a co-author on several publications.

Dr. Cergnul has been involved in the field of addiction medicine, HIV care and mental health for the last seventeen years. Her private practice focuses on novel modalities used in treating addiction and dual diagnosis patients and has successfully incorporated Nexalin as an integral part of her treatment armamentarium.