Dr. Holly Castle received her doctorate in naturopathic medicine from National College of Naturopathic Medicine (now National University of Natural Medicine) in 1997 and is licensed in both OR and AZ. She has been studying classical homeopathy since 1987 and biotherapeutic drainage since 2001.
Dr. Castle is a certified practitioner of biotherapeutic drainage. She is also a senior vitalist member of the Naturopathic Medicine Institute. Her practice emphasizes women’s health, family medicine, and the natural treatment of migraine headaches.