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About Us

img_2614Statewide Clinical Services–LLC (SCS) provides a full range of psychological services to a multi-ethnic, multicultural population of adults, adolescents, children, families, groups, and organizations in New Jersey. In spite of its reach and diversity, SCS still operates with the format, care, and detail of a small practice under the leadership of Luis A. Guerreiro, Psy.D., a practicing licensed psychologist and certified school psychologist who has dedicated thirty years of his life and career to helping patients and clients solve and overcome problems in life. Guerreiro Psychological Center, P.C. was launched in North Plainfield in 1993, becoming SCS in 2009. It has now become, a more geographically diffused provider of mental health services in Northern and Central New Jersey.

Dr. Luis A. Guerreiro obtained his  doctorate in psychology from the Graduate School of Applied and Professional Psychology (GSAPP) at Rutgers University, New Brunswick, New Jersey, in 1989.  He is a certified school psychologist since 1987 and a licensed psychologist since 1992. Dr. Guerreiro was a fellow at the New York University Medical Center, Rusk Institute of Medicine Rehabilitation, in 1987-1988 and, over the years, he has given his professional contribution to Children Specialized Hospital, Newark Public Schools, and, through GPC and SCS, to an array of private and state agencies.

Dr. Guerreiro is the author of The Explanation of Behavior: A Control Theory of Everything (2016), a landmark text in the understanding of behavior and motivation.

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