Guiding You with
Compassion
About Katy Psychological Services — Expert Psychologists in Katy, TX
Founded in 2014, Katy Psychological Services, PLLC began with a simple yet powerful mission: to provide compassionate, personalized psychological care that empowers individuals and families in Katy, Texas to navigate life's challenges with confidence. What started as a small practice has grown into a trusted resource for those seeking therapy, psychological evaluations, and expert mental health support across Katy, Fulshear, Cinco Ranch, and the greater Houston area.
Our journey has been shaped by a deep commitment to our clients and a dedication to continuous learning. Over the years, we have helped countless children, teens, and adults find clarity, resilience, and strength in the face of adversity.
Credentials & Professional Affiliations
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Doctor of Philosophy (Ph.D.) – University of Houston (APA Accredited)
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Master’s Degree (M.A.) – Texas State University (NASP Accredited)
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Bachelor’s Degree (B.S.) – University of Arizona
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Licensed Psychologist (LP) – Texas State Board of Examiners of Psychologists
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Licensed Specialist in School Psychology (LSSP)
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Diplomate – American Board of School Neuropsychology (ABSNP)
For license verification, visit: www.tsbep.texas.gov
For information on filing a complaint, visit: TSBEP Enforcement Page
Bilingual Care & Personalized Approach
Dr. Villesca is bilingual in English and Spanish, allowing her to provide culturally sensitive and accessible psychological services for a diverse range of clients. She believes in a personalized, compassionate approach, ensuring that every client receives tailored support to navigate their unique challenges.
Specialized School Psychology & Independent Evaluations
As a Licensed Specialist in School Psychology (LSSP) in Texas, Dr. Villesca is highly knowledgeable about school laws and regulations set by the Texas Education Agency (TEA). She conducts Independent Educational Evaluations (IEEs) for families seeking a second opinion on school district evaluations, ensuring that assessments align with educational standards.
Education & Expertise
Dr. Villesca earned her Doctorate in School Psychology from the University of Houston, an APA-accredited, evidence-based program. She also holds a Master’s Degree in School Psychology from Texas State University and a Bachelor’s Degree in Psychology from the University of Arizona.
As a Licensed Psychologist (LP) and Licensed Specialist in School Psychology (LSSP), she has extensive experience conducting comprehensive psychological evaluations for a range of concerns, including:
✔ ADHD & Executive Functioning Challenges
✔ Autism Spectrum Disorder (ADOS-2 trained)
✔ Oppositional Defiant Disorder (ODD)
✔ Mood Disorders (including Bipolar Disorder, Depression, & Anxiety)
✔ Learning Disabilities (Dyslexia, Dysgraphia, Dyscalculia)
✔ Neuropsychological Testing (Memory, Attention, Visual-Spatial Processing, Language, & Executive Functioning)
Dr. Villesca also provides evidence-based therapy, incorporating Cognitive Behavioral Therapy (CBT), Dialectical Behavior Therapy (DBT), and Parent-Child Interaction Therapy (PCIT) to support individuals in managing and overcoming mental health challenges.
Meet
Dr. Dyanna Villesca, Ph.D.
Licensed Psychologist | School Psychologist | Neuropsychological Assessment Specialist
With over 23 years of experience in both school districts and private practice, Dr. Dyanna Villesca is a dedicated psychologist committed to providing expert psychological care and evaluations for children, adolescents, and adults. Practicing in Katy, Texas, she specializes in psychological and psychoeducational assessments, therapy, and neuropsychological evaluations to help individuals better understand their cognitive, emotional, and behavioral needs.
The Heart of Our Care
Our Holistic Approach
Blending Science and Compassion for Meaningful Change
At Katy Psychology Services LLC, we believe that true healing comes from a balance of evidence-based science and genuine human connection. Our practice is built on the foundation of empathy, understanding, and the unwavering belief that everyone deserves to live a fulfilling life.
What Sets Katy's Psychologists Apart
We go beyond traditional therapy by integrating a holistic approach tailored to each individual. Whether you're facing anxiety, depression, trauma, ADHD, or relationship difficulties, our licensed psychologists and therapists are here to help. We don't just address symptoms — we focus on long-term strategies for growth and healing.
Our practice stands out for:
✔ Personalized Treatment Plans — Every journey is unique, and so is our approach.
✔ Evidence-Based Methods — Using proven techniques including CBT, DBT, ACT, PCIT, and EMDR to foster real, lasting change.
✔ Comprehensive Psychological Evaluations — ADHD testing, autism assessments, dyslexia evaluations, and neuropsychological testing for all ages.
✔ A Safe, Supportive Environment – A place where you are heard, understood, and valued.
Our Mission & Values
At Katy Psychology Services LLC, we are driven by a passion for helping others achieve mental and emotional wellness.
Our core values include:
🔹 Empathy & Understanding – Every client’s experience is valid and respected.
🔹 Integrity & Trust – Confidentiality and professionalism are at the heart of our work.
🔹 Empowerment & Growth – Helping individuals build resilience and reclaim control over their lives.
Our Outstanding Team
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Your Path to Healing Starts Here
We know that taking the first step toward therapy can be daunting, but you don't have to do it alone. Whether you're looking for guidance, healing, or simply someone to listen, Katy Psychological Services is here to support you. Together, we can turn challenges into opportunities for growth and create a future filled with hope.
Call us at (832) 913-8747 or text (281) 306-3068 to request an appointment today.
