Rev. Tomás Guillén

Ask Fr. Tomás:

Fr. Tomás Guillén was born in Whittier, CA and was raised in Orange County and also Moreno Valley where he attended high school. After almost entering the Army he entered seminary in 2008, he started at Serra House and then finished minor seminary at Loyola University Chicago with a B.A. in Philosophy. He was ordained a diocesan priest in 2016 with a Masters of Divinity and Spiritual Theology from St. John’s Seminary in Camarillo, as well as a Masters in Church Administration from Villanova University Business School. He has previous parish experience in Hesperia, Fontana and Temecula and assists in teaching in the diocesan CMFP program. He is also currently a chaplain for the Aquinas  High School football team and for the Riverside County Sheriff’s Department. Fr. Tomás’ interests include cooking and weightlifting.

P. Tomás Guillén nació en Whittier, CA y se crió en el condado de Orange y también en Moreno Valley, donde asistió a la escuela secundaria. Después de casi ingresar al ejército, ingresó al seminario en 2008, estuvo en Serra House y luego terminó el seminario menor en la Universidad Loyola de Chicago con un B.A. en Filosofía. Fue ordenado sacerdote diocesano en 2016 con Maestrías en Divinidad y Teología Espiritual del Seminario de San Juan en Camarillo, así como una Maestría en Administración de Iglesia de la Escuela de Negocios de la Universidad de Villanova. Tiene experiencia parroquial en Hesperia, Fontana y Temecula y asiste enseñando en el programa CMFP de la diócesis. También es capellán del equipo de fútbol americano de Aquinas High School y del Departamento del Sheriff del condado de Riverside. Los intereses del P. Tomás incluyen cocinar y levantar pesas.

Deacon Mike Shaffer

Deacon Mike and Rachel Shaffer were married on Dec. 10, 1983.  They have two adult children, three grandchildren and moved to Eastvale 8 years ago.  Mike received a BA in Philosophy from St. John’s Seminary College and a MA in Pastoral Theology from Loyola Marymount University. Rachel earned a MA in Human Development from Pacific Oaks College in Pasadena and works as a Sign Language Interpreter for Riverside Unified School District. Mike was ordained to the Diaconate by Bishop Kevin Vann for the Diocese of Orange on Oct. 17, 2015 and was assigned to St. Angela Merici in Brea. Over the years, Dcn. Mike and Rachel have been involved in marriage prep, youth and adult retreats, have facilitated a bereavement support group and involved in Baptism Ministry. Dcn. Mike has also coordinated liturgical ministries, and other ministries as was needed. Deacon Mike is now retired after working over 30 years for the Archdiocese of Los Angeles and the Diocese of Orange.  Dcn. Mike and Rachel are excited by this new appointment by Bishop Rojas and looking forward to being a part of St. Oscar Romero and ministering in this growing community.


Parish Office
Monday- Thursday: 9am-3pm
Friday-Sunday: Closed

mass location
Dr. Augustine Ramirez Intermediate
6905 Harrison Ave., Eastvale 92880

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