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Dr. Dyanna Villesca Psychologist

Dr. Dyanna Villesca

Licensed Psychologist

 am a Licensed Psychologist (and also a child psychologist) currently practicing in Katy, Texas.  I earned my doctorate from the University of Houston, an evidenced-based program approved by the American Psychological Association. I have been practicing for over 15 years combined in both school districts and in private practice.  I specialize in conducting psychological evaluations and psychoeducational evaluations for children, adolescents, and adults.  I assess many areas including AD/HD, autism (ADOS-2 trained), oppositional defiant disorder, mood disorders (including bipolar), depression, and anxiety.   I conduct psychological evaluations for clients from toddlers (18 months for developmental delays) to adults.  I also provide therapy for these conditions, with expertise in Cognitive Behavioral Therapy (CBT), Dialectical Behavior Therapy (DBT), and Parent-Child Interaction Therapy (PCIT).  I have advanced training in testing for learning disabilities including dyslexia, dysgraphia, and dyscalculia (reading, writing, and math disorders).  My specialization also includes expertise in neuropsychological assessment which explores issues related to memory, attention, visual-spatial processing, language, and executive functioning.  I am also bilingual (English/Spanish).
A note about the LSSP
I am licensed as a school psychologist (called the LSSP in Texas).  The Licensed Specialist in School Psychology (LSSP) requires specialized training to work within the school system.  I am well-versed on school laws/regulations that are required by the Texas Education Agency (evaluations from outside professionals are not considered if they do not meet these standards).   I also conduct Independent Educational Evaluations (IEE's) for parents who want a second opinion from a school district evaluation. 

Doctor of Philosophy (Ph.D.) in 2009 from the University of Houston-APA Accredited (School Psychology)
Master's Degree (M.A.) in 2003 from Texas State University-NASP Accredited (School Psychology)
Bachelor's of Science (B.S) in 1999 from the University of Arizona (Psychology)

Professional Titles:
Licensed Psychologist (LP) 
School Psychologist (LSSP)
Diplomate of the American Board of School Neuropsychology (ABSNP)​

​Dr. Villesca is a Licensed Psychologist with the Texas State Board of Examiners of Psychologists (TX License #34550; Expires 2/2022). For information on how to verify a license, please go to  For information on how to file a complaint, please go to the following page:

ADHD kids playing with toys

About US

A Licensed Professional Here to Guide You

Imagine waking up every morning feeling like you can take on the world. How great does that feel? In 2000, I opened the doors to my practice to patients in the greater San Francisco area — offering them a wide range of counseling and psychological services to guide them through life’s challenges and most trying times.

Life can get difficult, and sometimes a little help from a professional Family Psychologist can make things better. I care about your well-being and provide you all the tools you need in order to seize the day and learn how to tackle even the most traumatic circumstances.

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