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About Kathrine

Kathrine (Kate) Sullivan is a licensed mental health counselor (LMHC) in the state of Massachusetts. She has worked diligently to achieve success in multiple mental health locations. She began her career as an intern in the Partial Hospital Program (PHP) at the Leonard Morse Hospital in Natick, MA. She worked with adults with a wide array of mental health conditions, primarily those with dual diagnosis disorders. While at the PHP she conducted individual therapy and psychoeducational groups on self-esteem, cognitive behavioral therapy techniques, substance use/abuse, and anger management.

After gaining experience at the PHP Kate transitioned her career to working with juvenile offenders in two very distinct settings. Initially, Kate spent approximately two years working with female offenders at the Girls Secure Detention Unit in Brockton, MA where she again provided individual and group therapy using Dialectical Behavioral Therapy (DBT). In this setting Kate was exposed to adolescent girls with significant mental health diagnoses, exposure to trauma, abandonment issues, self injurious behavior, violent behavior, prostitution, and gang involvement. Kate excelled in this environment because of her ability to remain calm but responsive in high crisis situations, build strong, empathetic relationships with the client’s served while adhering to excellent professional boundaries.

Kate was then promoted to the Clinical Director position at a transition to independent living program for the Department of Youth Services. Kate played an integral role in the development and execution of the clinical, behavioral, and educational components of the program. Furthermore, she developed strong community relationships with schools, employers, recreational venues, and community health and mental health agencies. In addition to providing individual and group therapy she assisted clients in securing housing, employment, education, transportation, and mental health services in the community prior to the discharge from the program. In this setting Kate was exposed to the struggles that the clients faced when transitioning back to the community after being in secured settings for months or even years. This struggle inspired Kate’s transition to the outpatient mental health field.

Kate has had continued success working with adolescents and adults in the outpatient field. She has further developed skills to help children struggling with a multitude of mental health diagnoses in this setting. She has worked outpatient at both a community mental health center and a small group practice in addition to her private practice.


Over the last year, Kate has also worked with the Department of Children and Families (DCF) through the Institute for Health and Recovery to address substance abuse issues in families serviced by DCF. Kate has excelled in helping individuals navigate difficult substance abuse issues and worked to reunify families.

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