Beautiful Image of Half Dome in Yosemite National Park, California

Our Team

The Cornerstone staff consists of committed and caring professional men and women who have been trained in how to work with families and individuals in crisis. All staff have appropriate credentials, licenses and certifications. They are a group of clinicians who have experienced being the client as well as the clinician and have passion for helping people become unstuck.


Click on any of the profile photos below of our staff to view their profile

Jolinda Thomas profile photo

Jolinda Thomas - Director & Licensed MFT

Greg Thomas profile photo

Greg Thomas - CAS, CAMF

Heidi Walle Profile Photo

Heidi Walle - Licensed MFT

Christina Tempesta Profile Photo

Christina Tempesta - Licensed MFT

Charles Peugh Profile Photo

Charles Peugh - Licensed MFT

Judith Young Profile Photo

Judith Young - Licensed MFT

John Johnson Profile Photo

John Johnson - M.Phil-DPS

Caleen Wieg Profile Photo

Caleen Wieg - Licensed MFT

Our Interns

Dawn Cardoza Profile Photo

Dawn Cardoza - LMFT Trainee

Shahna Duerksen Profile Photo

Shahna Duerksen - Pre-LMFT Intern

Krissy Franke Profile Photo

Krissy Franke - Drug/Alcohol Counselor Intern