Provider Bios

Tammy A. Ouellette, Psy.D.
Clinical Health and Neuropsychologist

Dr. Tammy Ouellette has a private practice in Fullerton, California where she has been focusing on Health and Neuropsychology since she acquired her Psychology License in 2005. Dr. Ouellette holds a bachelor’s degree in Psychology from California State University, Fullerton: with Honors, a master’s degree in Psychology, and a Doctorate in Clinical Psychology, Health emphasis 

Andy Del Castillo, M.A.
Registered Associate Marriage and Family Therapist
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Life is complicated. Emotions can be overwhelming. Feeling helpless, stressed, misunderstood, and lost can be frightening. This is okay, you are not alone. Let's work together to help you find the best version of yourself.

Darlene Valdez-Olguin, LMFT, Ph.D.
 Licensed Marriage and Family Therapist

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Darlene Valdez-Olguin, LMFT, Ph.D. is a Licensed Marriage, Family Therapist with a Ph.D. in Psychology. She has training and experience in treating patients with psychiatric disorders, specializing in grief counseling, eating disorders, mood disorders and Alzheimer’s Disease and other dementias. Her therapeutic approaches focus on Cognitive-Behavioral

Kaylea Philobos, M.S.
Health and Wellness Coach

Kaylea Philobos is our Health Promotion and Wellness director who has experience collaborating with allied health professionals focusing on injury prevention, rehabilitation, and health promotion. She earned her bachelor’s degree in Experimental Psychology in 2017 from the ...