Walnut Creek

Campus Leadership

Adrian Tsingaris

Adrian Tsingaris - Campus Pastor

Adrian is the Walnut Creek Campus Pastor leading the staff and ministry programs at the Walnut Creek campus. He grew up in the SF Bay area, and has a strange love for this place! Adrian loves when people discover God’s love for them. Adrian lives in Pleasant Hill with his wife Tonya, his son Nico, and daughter Mia.

Jeff Maitlen

Jeff Maitlen - Associate Pastor

Jeff joined the staff at Cornerstone Walnut Creek as the Associate Pastor in March 2016. He originally hails from Buffalo, NY and is very happy to be out of the snow. After graduating from Penn State, he moved to the Bay Area and has not looked back since. Since committing his life to the Lord in 1992, he has been passionate about helping people to grow in the grace and knowledge of Jesus Christ. He has served congregations in both Concord and Walnut Creek for the past twenty years. Jeff and his beautiful wife Connie have two grown children, Kelly and Josie, and an irritating cat appropriately named Magpie. Jeff and Connie enjoy living in Concord and can be seen regularly at Half Price Books, Music in the Park, and Off the Grid.

Enoch Chang

Enoch Chang - Worship Leader

Enoch is the Worship Leader at the Walnut Creek campus. He was born and raised in Charlotte, NC and graduated from Georgia Tech with a degree in Biomedical Engineering before getting his Masters in Divinity from Columbia Theological Seminary. Enoch is passionate about being a pastor on the stage and off. He is a foodie at heart and is a diehard Carolina Tarheels fan. He lives in Pleasant Hill with his cat, Jerkface.

Demetrius Starks

Demetrius "3D" Starks - Students Pastor

Demetrius, with the nickname “3D,” oversees the Middle School and High School communities at CF Walnut Creek.  He grew up in Virginia Beach, Virginia and felt called to move out West in 2011. His passion is to care, train, develop and empower students to impact their communities with the love of Christ. In his free time, he enjoys going to theme parks and playing Catan.

Amber Kotowski

Amber Kotowski - Kids Leader

Amber is the Kid’s Ministry Lead for the Walnut Creek campus.  Growing up in Livermore, she attended Cornerstone Fellowship starting in high school.  Amber has served in Kid’s Ministry ever since then!  Prior to leading the kids in Walnut Creek, she was an elementary teacher for 9 years in Livermore.  Amber has always loved working with kids, and doesn’t think that will ever change! Amber lives in Walnut Creek with her wonderful husband Matt and their adorable son Hudson.

Lauren Strom

Lauren Strom - Administrative Team Lead

Lauren serves as the Campus Administrative Team Lead, which is a fancy name for keeping the Walnut Creek office from catching on fire and helping other Ministry Leads get stuff done. Lauren was born and raised in the suburbs of Chicago, Illinois and is a proud alumnus of the University of Illinois-Urbana Champaign. Lauren is married to her techie husband, Matt and has one furry child, Benny the beagle.