Dr. Timothy Gunn

Psychologist , PsyD

(626) 593-1153
I offer psychological assessment services for individuals from birth through 25 years of age. I provide some testing for adults over 25 as well depending on the reason for they are seeking testing. My assessments include neuropsychological, psychoeducational, diagnostic and developmental evaluations. I have experience providing Independent Educational Evaluations for parents of children who dispute the findings of an assessment conducted by the local public school district. I am able to modify my fee to accommodate families as best as I can and am usually able to develop creative options to help families get the testing they need.
I specialize in neuropsychological testing of minor children who are struggling academically as a result of long-standing factors or as a result of acute factors such as concussion/traumatic brain injury. I also specialize in evaluation of children suspected of having learning disorders or being on the Autism spectrum.
I believe all children have great potential and some of our most gifted students are in the special education system. My evaluations uncover the child's strengths and weaknesses in order to help these students and their families obtain the accommodations to help them reach their potential.
Call or Email Dr. Timothy Gunn for a free phone consultation now - (626) 593-1153


  • Years in Practice: 4 Years
  • School: Azusa Pacific University
  • Year Graduated: 2008
  • License No. and State: PSY23190 California


  • Avg Cost (per session): $50 - $150
  • Sliding Scale: Yes
Accepted Payment Methods: Cash, Check, Mastercard, Visa

Accepted Insurance Plans:

  • Aetna
  • Cigna
  • MHN
  • Out of Network
  • BlueCross and BlueShield
  • Health Net
  • Magellan Behavioral Health

Verify your health insurance coverage when you arrange your first visit .


Gunn Psychological Services
10470 Foothill Blvd #116
Rancho CucamongaCalifornia 91730
(626) 593-1153
Email Me

Additional Location

2400 E Katella Ave, Ste 800, Anaheim, CA
AnaheimCalifornia 92806
(855) 699-1202


  • Testing and Evaluation
  • Autism
  • Learning Disabilities


  • ADHD
  • Anxiety
  • Behavioral Issues
  • Coping Skills
  • Developmental Disorders
  • Intellectual Disability
  • Parenting
  • Self Esteem
  • Traumatic Brain Injury
  • Anger Management
  • Asperger's Syndrome
  • Child or Adolescent
  • Depression
  • Emotional Disturbance
  • Oppositional Defiance
  • Peer Relationships
  • Trauma and PTSD

Client Focus

Alternative Languages: Spanish
Religious Orientation: Christian


  • Toddlers / Preschoolers (0 to 6)
  • Children (6 to 10)
  • Preteens / Tweens (11 to 13)
  • Adolescents / Teenagers (14 to 19)

Treatment Approach

Treatment Orientation:

  • Cognitive Behavioral (CBT)
  • Interpersonal
  • Psychological Testing and Evaluation


  • Individuals
  • Family

Professional Connections

Dr. Hannah Lee, PsyD

Dr. Hannah Lee, PsyD

Colleague, known for 5 years
Dr. Larry Kuhn, PsyD, HSPP

Dr. Larry Kuhn, PsyD, HSPP

Classmate, known for 10 years
Dr. Cecilia Duenas, PsyD, MA

Dr. Cecilia Duenas, PsyD, MA

Colleague, known for 8 years

Nearby Areas

This location is easily accessible from:
Last Modified: 27 Jun 2015