Dr. Nancy Scanlan has been using integrative veterinary medicine since her senior year in veterinary school, although she did not realize that is what she was doing at the time. She graduated from the University of California, Davis School of Veterinary Medicine in 1970, and has practiced in a mixed practice, small animal practice, and as a holistic-only practitioner in a 7-person practice. In addition, she has been an instructor, department head, and division head in Veterinary Technician programs. Dr. Scanlan wrote "Complementary Veterinary Medicine for Veterinary Technicians and Nurses," which reflects her experience learning and teaching a number of integrative modalities, including acupuncture, Chinese herbal medicine, Western herbal medicine,  and trigger point therapy, among others.

Dr. Scanlan is currently on the editorial committee of the Journal of the American Holistic Veterinary Medical Association (AHVMA), past board member, past president, and past Executive Director of the AHVMA as well as a past delegate from AHVMA to AVMA. She is also a past Executive Director of the American Holistic Veterinary Medical Foundation (AHVMF) and currently serves as their veterinary liaison. She is also the RACE and Special Projects Manager for CIVT, and a tutor for CIVT's First Aid for Pets and Environmental Animal Health.