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Shannon Cantillano, LCSW

Hi! I am the Owner and Clinical Director of Inner Expansions. Specializing in psychotherapy for individuals, I'm a Licensed Clinical Social Worker with the Board of Behavioral Sciences. I maintain offices in San Luis Obispo, CA, and Atascadero, CA, offering both in-person and virtual appointments.

I work with a broad spectrum of clients though I consider my specialty to be working with new moms, young adults and adult women. Among my areas of expertise are survivors of trauma and abuse, self-esteem and identity, depression, anxiety, adult ADHD and interpersonal relationship skills.

I am primarily an EMDR (Eye Movement Desensitization and Reprocessing) therapist. EMDR is a wonderful tool for healing emotional pain quickly. My therapeutic approach also includes providing support and practical feedback to help clients effectively address personal life challenges from a client-centered perspective. I integrate complementary methodologies and techniques to offer a highly personalized approach tailored to each client. With compassion and understanding, I work with each individual to help them build on their strengths and attain the personal growth they are committed to accomplishing.


I completed my Bachelor’s of Science Degree in Psychology in 2004 at Cal Poly, San Luis Obispo, earning minors in Child Development and Gender Studies. I earned my Master’s of Social Work Degree in 2009 from California State University, Fresno with a concentration in Public Mental Health. I continue to take educational course work and I have a genuine love of learning.

Licenses and Certifications

I became Licensed as a Clinical Social Worker in 2012 after completing 3,200 hours as an Associate Clinical Social Worker under supervision. 

I completed my training in EMDR in 2018 and became a Certified EMDR Therapist through EMDRIA in 2023.

I completed training as a Domestic Violence Crisis Counselor in 2005 as well as a Sexual Assault Crisis Counselor in 2003.

I also became a Certified Psychiatric Rehabilitation Practitioner in 2011.