8300 Utica Ave, Suite 245 Rancho Cucamonga, CA 91730


Our Rancho Cucamonga office is located behind the Rancho Cucamonga Courthouse, southeast of the corner of Foothill Blvd and Haven Ave. We are in suite 245. There is plenty of free parking between the parking lots on the north side and south side of the building. For directions to the Rancho Cucamonga office from a specific address, please click here. For a virtual tour of the office, please click here.

The building can be a little tricky to find the first time that you come so we have included a few resources to help you locate the building. The videos below will provide a guided tour to navigate to our building from various directions.  







Click on the map above if you would like to type in your address and obtain step-by-step directions to our office. 

Hover the cursor over the screen and select the arrows (>) on the right or left of the screen to scroll through the options. You may also select the menu button (the three parallel lines just above this text) to view the video titles and select the one you need. 

Phone: 909-989-4055 (call or text message)

Fax: 909-989-8005

Email: info@gunnpsych.com


Official therapy provider for Battle Buddy 4 Life, LLC. 

Catch Dr. Gunn on Seasons 1 and 2 of

Lifetime Network's Child Genius.

Full episodes are available here.