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Rev. Blaise Berg

Adjunct Professor of Dogmatics


[email protected]


B.A., Philosophy and Theology, University of San Francisco, St. Ignatius Institute, 1983

M.B.A, California Polytechnic University, San Luis Obispo, 1991 

S.T.B, Pontifical Gregorian University, Rome, 1994, cum laude 

S.T.L., Pontifical Lateran University, John Paul II Institute for Studies on Marriage and the Family, 1997, magna cum laude (tesina: Marriage and Family Life According to A. von Speyr: A Study of Christiane in the Light of the Magisterium)  

S.T.D., Pontifical Lateran University, John Paul II Institute for Studies on Marriage and the Family, 2003, summa cum laude (dissertation: Marriage According to Adrienne von Speyr)  


Fr. Blaise Berg was born the ninth of twelve children in Yuba City, California. During the summer vacations from high school, he worked part-time in the fields of Sierra Gold Nurseries, a wholesale fruit and nut tree nursery which his father founded in 1951. After high school, Blaise attended the University of San Francisco, where in 1983, he completed a Bachelor of Arts degree in philosophy and theology and received a certificate of completion from the St. Ignatius Institute, a great books program. Two years later, he attended Cal Poly, San Luis Obispo to obtain an M.B.A. with a specialization in agribusiness. After completing his M.B.A. studies in 1987 and working as a cross country truck driver for almost a year, he joined his father on the management staff of the tree nursery. It was during that period of his life when he more seriously discerned a vocation to the consecrated state and the priesthood.   

In early1991, Blaise was accepted to the Casa Balthasar, a house of formation and discernment in Rome, Italy.   In the summer of 1994, nearing completion of his time of formation at the Casa Balthasar, Blaise was accepted in the priestly formation program for the Diocese of Sacramento. After a pastoral year, Blaise returned to Rome for more formation at the Pontifical North American College and further studies. He was ordained to the transitional diaconate in St. Peter’s Basilica with his classmates in October 1997 and was ordained to the priesthood in June 1998 at the Cathedral of the Blessed Sacrament in Sacramento.   

Upon completion of his studies in 2000, Father Berg returned from Rome and was assigned as Parochial Vicar at St. Rose Parish, Roseville.  In February 2002, Bishop William K. Weigand appointed Fr. Berg Secretary to the Bishop and Vice-Chancellor. In July 2006, Fr. Berg began a six-year assignment as the Director of the Newman Center at Chico State University.  In January 2008, in addition to his duties at the Newman Center, Bishop Weigand appointed Fr. Berg to pastor St. John the Baptist Parish in Chico. In 2012, Bishop Jaime Soto appointed Fr. Berg as Episcopal Vicar for Clergy. Having completed his term in June 2016, Fr. Berg was named Pastor of St. Mary’s Parish in Vacaville, California where he presently serves.  

In addition to his various assignments, Fr. Berg has served as chaplain for Rachel’s Vineyard retreats since 2004 and has served on a number of diocesan boards, committees, and councils. Since 2003, he has been a board member of the California Association of Natural Family Planning and presently serves as President.   

Conference/Workshop Presentations

God’s Design for Married Love, The Pastoral Applications of NFP: Creating a Parish Culture that is Life Giving and Love Giving, Presentation to Permanent Deacons, Diocese of Sacramento, May 30, 2020 

Cinema and Catechesis, Presentation, Ministry Days, Diocese of Sacramento, Sep 12, 2014 

Liturgical Directives for Deacons, Presentation, Diocese of Sacramento, March 13, 2014 

Navigating the Sexual Wilderness, Presentation, Diocese of Sacramento, March 4, 2013 

Fatherhood: The Vocation of All Men, Presentation, Men’s Conference, Diocese of Oakland, November 15, 2008 

Selected Publications

“NFP in the Trenches:  Missionaries of Charity Teach the Billings Method in Calcutta, India”, President’s Article, CANFP News, June 2019 

“Balthasar sulla sessualitá”, Dizionario su sesso, amore y feconditá, Catagalli, Siena, 2019 

“We teach and preach NFP because it’s true!” Clergy Corner, CANFP News, Dec 2015 

“How does a priest treat the sin of voluntary sterilization within the celebration of the Sacrament of Penance?”  Clergy Corner, CANFP News, Mar 2013 

“Spiritual Fatherhood of the Priest and of the Husband/Father”, Clergy Corner, CANFP News, Nov 2007