As an affiliate of the American Public Health Association, the Oklahoma Public Health Association (OPHA) provides a forum for the professional enrichment of over 1000 dedicated public health practitioners. We hope you will find this site a useful professional tool as well as a great networking opportunity. Originally found in 1939, OPHA is a 501 (c)(3) non-profit organization dedicated to the the advancement of good public health in Oklahoma through education, practice and advocacy.