Dr. Glen Nagel

School of Naturopathic Medicine



Assistant Professor



Botanical Medicine



ND, National College of Naturopathic Medicine, 1993

 Office Phone






CLE709  Clinic Secondary Rotation
CLE811  Clinic Primary Rotation
BOT520  Botanical Medicine I
BOT700E/701E  Botanical Medicine Intensives I, II


Dr. Glen Nagel is one of the most notable experts in botanical therapies in the field of naturopathic medicine. “My personal goal has always been to be the most versatile and well rounded, botanically focused naturopathic doctor that I can be. I strive to develop an understanding of herbs from the seed to the clinical prescribing of botanical medicines. I have a deep love and respect for the healing herbs and strive to teach others about them.”  Dr. Nagel has extensive experience treating:

●  Allergies
●  Sinus conditions
●  Fatigue
●  Digestive problems
●  Men’s health

In addition to using botanical medicines, Dr. Nagel focuses on nutrition, homeopathy, and detoxification. 

Dr. Nagel has been studying botanical medicine for nearly three decades. He apprenticed with Ed Smith, the founder of Herb Pharm, and subsequently worked for Eclectic Institute, setting up their herb extraction lab and production facilities.  

Dr. Nagel earned his B.S. in outdoor education from Northland College in Ashland, Wisconsin. It was during this time, that he read Euell Gibbon’s book, Stalking the Healthful Herbs, which officially launched his interest in pursuing a career in botanical medicine. His work at Eclectic Institute turned his attention to naturopathic medicine, and he earned his doctorate in naturopathic medicine degree from National College of Naturopathic Medicine in 1993.

He has been an assistant professor and supervising clinical faculty member at Bastyr University and joins the NCNM Clinic with over 15 years of clinical experience. He successfully practiced naturopathic medicine in Montana and Colorado before returning to Portland in 2005.

Dr. Nagel is a registered herbalist by the American Herbalists Guild. His current focus is to continue to educate naturopathic students in the area of botanical medicine, and to keep the nature in naturopathy through field study and clinical supervision. In his spare time, Dr. Nagel enjoys singing, playing the mandolin, and camping and hiking with his family. 

View Dr. Nagel's Curriculum Vitae.