Summary: Dr Sandberg-Lewis is a highly regarded and well-known naturopathic physician. He has been a professor at the National University of Naturopathic Medicine (NUNM) since 1985, in Portland, Oregon. Dr Sandberg-Lewis has a part-time clinical practice and is the author of several Townsend Letter award-winning articles, and of the medical textbook ‘Functional Gastroenterology, Assessing and Addressing the Causes of Functional Digestive Disorders’. He has also been named one of the Top Docs in Portland in 201
