Steven Sandberg-Lewis, ND, DHANP


Steven Sandberg-Lewis, ND, DHANP has been a practicing naturopathic physician for over four decades and a professor of gastroenterology at the National University of Natural Medicine (NUNM) since 1996. He maintains a part-time practice at Hive Mind Medicine in Portland, Oregon (info@hivemindmedicine.org).

He is a popular lecturer at functional medicine seminars, presents webinars and is frequently interviewed on issues of digestive health and disease. He is the author of the medical textbook Functional Gastroenterology: Assessing and Addressing the Causes of Functional Digestive Disorders, 2017. In 2010 he co-founded the SIBO Center at NUNM which is one of only four centers in the USA for Small Intestine Bacterial Overgrowth diagnosis, treatment, education and research.

Within gastroenterology, he has special interest and expertise in inflammatory bowel disease (including microscopic colitis), irritable bowel syndrome (including post-infectious IBS), Small Intestine Bacterial Overgrowth (SIBO), hiatal hernia, gastroesophageal and bile reflux (GERD), biliary dyskinesia, and chronic states of nausea and vomiting.