Dr. David A. Tamisiea

Current Position
Dean of the School of Arts and Sciences
University of Mary, Bismarck, ND


University of Notre Dame – B.A.
University of Texas School of Law – J.D.
Ave Maria University – M.A. and Ph.D. in Theology

Research and Teaching Interests

Dr. Tamisiea’s chief areas of expertise in theology are in ecclesiology and moral theology, but he has a wide spectrum of other teaching and research interests, including the theology of revelation and development of doctrine; the relationship between faith and reason; Catholic social teaching; Catholic bioethics; and sacramental and liturgical theology.


Dr. David Tamisiea is currently the Dean of the School of Arts and Sciences at the University of Mary in Bismarck, North Dakota. Prior to becoming Dean, Dr. Tamisiea served as the Administrative Chair of University-Wide Programs and an Associate Professor of Theology at the University of Mary. Before his employ at the University of Mary, Dr. Tamisiea was the founding Executive Director of the St. Philip Institute of Catechesis and Evangelization in the Diocese of Tyler, Texas. Previous to this role, Dr. Tamisiea was an Assistant Professor of Theology and the Director of the Undergraduate Theology Program at Ave Maria University in Florida. Dr. Tamisiea’s doctoral work focused on the baptismal priesthood of the Christian lay faithful and its relation to the Eucharist, and his master’s thesis examined the Catholic idea of a living tradition. Prior to his graduate studies in theology, Dr. Tamisiea was a practicing attorney specializing in civil litigation for over ten years in the Dallas-Fort Worth area. Dr. Tamisiea has been married to his wife Seana for over 14 years, and together they have six wonderful children ranging in age from four to fourteen. Dr. Tamisiea loves spending time with his family, is a voracious reader, and enjoys exercising in his spare time. Dr. Tamisiea and his family enjoy watch sporting events together, and are devoted Notre Dame football fans.