Dr. Whelan is board certified as a Gastroenterologist by the American Board of Internal Medicine. He has been practicing in the Danbury area for more than 30 years. His approach to patient care is such that he treats not only the disease, but the patient as well by providing insight for the patient into their illness. Appropriate communication is of the utmost importance to him. Dr. Whelan was named a 2023 Top Doc by Castle Connolly.