Our elders are responsible to lead, provide oversight and care for the Grace Church family. While each elder is assigned a geographic care region to help spread the workload, feel free to contact any of our elders to answer your question or assist you in your spiritual journey.


Doug Chiriboga and his wife Susan have been a part of the Grace family for many years. They are both physicians and practice Family Medicine and Pediatrics respectively. Doug and Susan lead a Small Group at Grace. In addition, Doug leads a Men’s group and a Bible study at work.They have 4 grown kids who are currently in college and enjoy hiking and cycling. 

Contact: dclumbricals5@gmail.com

Region of Care: West Covina, Azusa, and points west and south, Spanish-speakers



Cliff and his wife, Diane, Have been a part of Grace Church for 17 years. Cliff is a licensed Marriage and Family Therapist in San Dimas and Diane is a Registered Nurse. Cliff is a small group leader, taught adult Sunday school and taught as an adjunct professor of psychology for 17 years before retiring from APU. Diane has served on a short-term medical mission trip to the Philippines and served in various roles in Walk through Bethlehem. Cliff and Diane have two children, Nicole and Laurie. As a family, they enjoy camping, sports activities and gardening.

Contact: cliffordstunden@earthlink.net 

Region of Care: North Glendora




Bill and Sarah, and sons Jacob and Samuel, have been attending Grace since 2015. Their family has volunteered in a number of ministries over the years, and currently serves primarily on the Grace worship team(s). Bill is a graduate of Fuller Theological Seminary and a licensed psychologist with Journeys Counseling Ministry, and Sarah works as an office assistant at Charter Oak High School.

Contact: drbillfiala@gmail.com

Region of Care: San Dimas 



Grace Church has been the home of worship, growth and learning for my wife Shehani, son Sheran and I over the last 12 years. We have been abundantly blessed by various ministries of Grace Church. Glorifying Him through praise and worship has been my humble and primary calling, which I engage with passion. I strive to be an example of the love that God bestows on us. Whether it is on the sports field refereeing soccer games or leading worship, my goal is to serve. I work as a Financial Analyst for Ernst and Young in Los Angeles.

Contact: JRLPeera@gmail.com 

Region of Care: Covina





Brian Rietze has been a faithful attender of Grace Church for 24 years. Brian met his wife, Kristine, in the Grace young adults group a number of years ago, and they have two elementary aged children, Jacob and Kendra. Their family has served in many different ministries, some of which include junior high, ushering, VBS, sports, and Common Grounds. Grace has been an important part of Brian’s faith journey, and he desires to use his God-given gifts to give back and bless the Grace family. Brian is the CFO of The Fuller Foundation in Pasadena and is a Certified Public Accountant. Brian also serves on the Board of Foothills Pregnancy Resource Center in Duarte.