Board & Officers

GastroANP Officers

Josh Goldenberg, ND (registered)

GastroANP President

Dr. Goldenberg is a researcher, teacher, registered naturopathic doctor and founder of Dr. Journal Club, LLC. He is most passionate about the interplay of evidence and clinical practice.

Dr. Goldenberg is an active researcher with numerous publications in high impact scientific journals such as JAMA, Annals of Internal Medicine and The Cochrane Library. His research focus includes irritable bowel syndrome, probiotics, evidence-informed practice, and research methodology. He is currently Research Investigator at the Bastyr University Research Institute and Visiting Research Scholar at the University of Technology Sydney. He has presented nationally and internationally on evidence-based medicine as well as probiotics and research methodology. His probiotics work has been highlighted by the BBC, The New York Times, The Seattle Times, Prevention Magazine, and Fox News.

Dr. Goldenberg is a passionate educator and currently is faculty for the Academy of Integrative Health and Medicine’s Interprofessional Fellowship in Integrative Health and Medicine, where he teaches critical evaluation of the literature and evidence-informed practice. He is past adjunct faculty at Bastyr University, his alma mater, in which he enrolled after receiving honors and distinction in molecular biology from the University of Pennsylvania. He also guest lectures widely.

As a registered naturopathic doctor, Dr. Goldenberg focuses on integrative approaches to irritable bowel syndrome working in concert with patients’ conventional gastroenterologists.


Megan Taylor, ND

GastroANP Vice President

Dr. Megan Taylor is a licensed naturopathic physician practicing in Seattle, WA. She earned her doctorate in naturopathic medicine from NUNM in 2015, graduating with honors. In addition to providing naturopathic primary care, Dr. Taylor has particular interest in working with children and adults on digestive health, allergies, and autoimmune disease. Her schooling and post-graduate mentorship focused in the field of naturopathic gastroenterology, and she continues to be mentored by leaders in the field, Steven Sandberg-Lewis, ND  and Allison Siebecker, ND, LAc on the diagnosis and treatment of specific conditions such as Inflammatory Bowel Disease (IBD), Irritable Bowel Syndrome (IBS), and Small Intestinal Bacterial Overgrowth (SIBO), among others.

Prior to attending NCNM, Dr. Taylor received her bachelor’s degree in 2007 from Lewis and Clark College in Portland, Oregon and worked for several years in environmental and urban planning. When not working hard as a physician, Dr. Taylor spends as much time as possible in her garden, on the yoga mat, cooking delicious meals, and enjoying her family and friends.

Mark Davis, ND

GastroANP Secretary

Dr. Davis practices at the IBD Specialty Center in Silver Spring, Maryland. He’s also licensed to practice in California, Oregon, and the District of Columbia, where he sees patients by appointment. He’s a graduate of National University of Natural Medicine and a full-time instructor at Maryland University of Integrative Health. Dr. Davis is internationally respected as an expert on fecal microbiota transplantation (FMT) and helminthic therapy, and is a frequent author and lecturer. He’s on the editorial board of the Natural Medicine Journal, and the board of directors of the Fecal Transplant Foundation. Learn more at and

Adam Sandford, ND

GastroANP Treasurer

Dr. Adam Sandford practices primary care with an emphasis on hormonal and gut health in El Segundo, California.  His approach towards medicine is that all medical tools are valid and have their place, whether diet or drugs, exercise or surgery – the art of medicine for the Naturopathic Medical Doctor is working with each patient to help select the approach that is most right for them, for who they are today and who they want to be tomorrow.  His emphasis with the GastroANP is to help drive creation of best in class common practices for the most prevalent, and challenging, GI concerns.

GastroANP Board Members

Andrew Day

Dr. Day practices primary care medicine at Bastyr Center For Natural Health in the Seattle, WA. He trained for two years as a resident at the Bastyr Center for Natural Health and served as adjunct faculty at Bastyr University.  He is a regular contributor to Dr. Journal Club, an online site which provides education to medical providers interested in complementary and alternative medicine. He is on the board of directors of the Naturopathic Academy of Primary Clinicians as well as the board of directors of the GastroANP.  He is currently involved in multiple research endeavors which seek to better characterize the practices naturopaths use in the treatment of IBS.