The Riordan Clinic is a nutrition based medical clinic and a 501 (c) 3 not-for-profit organization established in 1975 in Wichita, KS. By treating the "whole" patient, not just the symptoms, the Riordan Clinic integrates lifestyle and nutrition to help them find the underlying causes of their illness. The Riordan Clinic is comprised of a CLIA certified laboratory, Bio-Center Laboratory; an orthomolecular clinic specializing in the treatment of chronic disease; a library registered with the National Libraries of Medicine; and a research division specializing in the study of nutritional remedies, degenerative and chronic disease, and analytical method development