We now offer online scheduling for cash pay sessions and for sessions through some insurance plans. If you would like to self-schedule online using your insurance or by cash pay, please click below:

Online scheduling currently down for maintenance -

Returning Soon!

Note - online scheduling is for individuals who are scheduling their first appointment with us. Follow up appointments are scheduled with your provider during the first/intake session. If you need to schedule a follow up appointment, you may contact our office or email your provider directly

If you would like information on psychotherapy,

counseling, personal growth/life coaching,

or group therapy, please click here:

If you would like to request an appointment for services that would be billed to your insurance provider, please submit your insurance information using the following form:

If you would prefer to submit this information by other means, please feel free to email us at info@gunnpsych.com, or contact us via phone at (909) 989-4055. If you would like to download and complete a physical version of this survey, you may do so here and fax it to us at 909-989-8005.

If you would like information on psychological assessment, please click here:

Thank you for visiting Gunn Psychological Services. We are a group of professionals dedicated to providing the highest quality psychological services and referrals. We can assist you with whatever you may need to reach your highest potential. We are also very knowledgeable about the psychological community at large and can provide you with a referral to the appropriate service provider if we cannot help you ourselves. Many people may not know exactly the type of service that they require. For that reason, we are dedicated to consulting with you to join our expertise with your life experience and put you in touch with the person, group of people, service and/or organization to help you overcome any life obstacle and/or assist in general personal growth.



Gunn Psychological Services provides the following services: 


Individual, family, couples and group therapy

Developmental Assessment

Psychoeducational Assessment

Psychodiagnostic Assessment

Intellectual Giftedness Assessment

Autism Assessment

ADHD Assessment

Learning Disorder Assessment

College and Career Assessment

Independent Educational Evaluations




For your convenience, we have offices in Rancho Cucamonga and Pasadena. 



To learn more about our team, schedule an appointment or for more information please click on the link below, email or call us at 909-989-4055.  

Phone: 909-989-4055

Fax: 909-989-8005


Catch Dr. Gunn on Seasons 1 and 2 of

Lifetime Network's Child Genius.

Full episodes are available here.

Official therapy provider for Battle Buddy 4 Life, LLC.