Understanding Your Child Starts Here

Comprehensive autism diagnostic assessments for children and adolescents in the Davis and Sacramento area, guided by a licensed psychologist with specialized training in developmental disabilities.

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Why Pinnacle Psychology

Specialized Autism Diagnostics

Gold-standard assessments administered by a psychologist with extensive experience evaluating young children.

Dual-Credentialed Expert

Dr. Guo holds both a doctorate in clinical psychology (PsyD) and Board Certified Behavior Analyst (BCBA) certification — a rare combination that brings deeper insight to every evaluation.

Bilingual Evaluations

Assessments and feedback sessions available in both English and Mandarin Chinese, ensuring families can communicate comfortably in their preferred language.

Our Services

Autism Diagnostic Assessments

Comprehensive autism evaluations for children and adolescents in Davis and Sacramento, including cognitive measures, caregiver interviews and questionnaires, autism-focused assessment tools, a detailed written report, and a feedback session.

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Ready to Take the Next Step?

We understand that seeking an evaluation for your child can feel overwhelming. Dr. Guo is here to guide your family through the process with care and expertise.

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