Dr. Gelven Dr. Gelven is the Department Chairman and Laboratory Director for Ponca City Hospital in Ponca City, Oklahoma. He served as the Chief of Medical Staff for Ponca City Hospital in 2007 and 2013. Dr. Gelven graduated from the University of Missouri-Columbia with a B.A. in chemistry in 1988. He graduated from their medical school in 1992. Dr. Gelven performed his residency in Anatomic and Clinical Pathology at the Medical University of South Carolina-Charleston from 1992-1996, and did a flexible fifth year fellowship at St. Louis University in St. Louis, Missouri in 1996-1997 in Anatomic Pathology. He has practiced pathology since July 1997, in Ponca City, Oklahoma and joined Pathology Laboratory Associates, Inc. in 2004.