A Board Certified physician practicing podiatric medicine and surgery since 1970, John A. Mattiacci, D.P.M. is the President of the OPEIU National Guild of Medical Professionals, chartered in 1996.

A Doctor of Podiatric Medicine since 1970, Dr. Mattiacci is currently Dean and CEO of the Temple School of Podiatric Medicine in Philadelphia. He has been a Vice President of OPEIU Region II since 1998. He serves on the Pennsylvania AFLCIO Executive Council. He is Chairman of the Pennsylvania AFLCIO Executive Council. He is Chairman of the Pennsylvania Podiatric Medical Association’s Labor Committee and cochair of that group’s Ethics Committee. He also serves as a Consultant to the PPMA’s Board. Dr. Mattiacci is board certified in podiatric surgery and is a fellow of the American College of Foot Surgeons.