Adult Outpatient Staff
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Antoinette Diamante Licensed Therapist-Central Access; Williamsburg-Main Office Education and Credentials
Specialty/Area of Expertise Ms. Diamante's area of expertise includes the treatment of anxiety, depression and co-occurring disorders. She takes a client-focused, strength-based approach to all care provided. |
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Additional Information Ms. Diamante has worked in a variety of settings including inpatient hospitals, domesti violence and family and child advocacy, school-based intervention services and outpatient counseling settings. |
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Diane Green Licensed Therapist-IOP; Williamsburg-Main Office Education and Credentials
Specialty/Area of Expertise Ms. Green has worked primarily with individuals and families with substance use disorders, co-occurring mental health and substance use disorders, and individuals involved in the criminal justice system. She facilitates the intensive outpatient program at the Williamsburg Office. |
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Additional Information Ms. Green has worked for Colonial Behavioral Health since 1998. She has extensive training in substance use research and experience providing individual, group, and family counseling in outpatient and correctional settings. |
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Philippa Matheson Licensed Therapist; York-Poquoson Office Education and Credentials
Specialty/Area of Expertise Ms. Matheson has worked primarily with adults with substance use disorders, mental health disorders and co-occurring disorders. She has worked in the field of counseling since 2011. She currently facilitates the relapse prevention and co-occurring disorders groups at the York-Poquoson Office. |
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Additional Information Ms. Matheson has worked for Colonial Behavioral Health in adult outpatient care since 2016, providing individual and group therapy. She previously worked in a residential substance use disorder program, and completed her internship in a psychiatric hospital. |
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Dr. Kristen A. McLean Adult Outpatient Coordinator; Williamsburg Education and Credentials
Specialty/Area of Expertise Dr. McLean has experience with children and adolescents, adults, and geriatric patients and has provided individual, group, family, couple’s therapy, and psychological assessment. She has served in various treatment settings including trauma-1 medical centers, a correctional setting, community mental, and school settings. Dr. McLean’s specialty is Primary Care Integration and expertise includes Affective Disorders, Anxiety disorders, Severe Mental Illness, and Chronic PTSD. She uses a variety of treatment modalities to specifically assess and treat clients with comprehensive care as her overall focus. |
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Additional Information Dr. McLean is a member of the American Psychological Association-Society for Health Psychology (Division 38) and the Society of Pediatric Psychology (Division 54). |
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Janice Stewart Licensed Therapist-Central Access; York-Poquoson Office Education and Credentials
Specialty/Area of Expertise Ms. Stewart is experienced in treating depression and anxiety disorders, bipolar disorder, thought disorders, personality disorders, and trauma and stress-related disorders. Her specialties include working with clients who are seeking assistance with LGBTQ-related issues and with those seeking therapy related to past sexual abuse. |
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Additional Information Ms. Stewart has experience working in a variety of settings, including outpatient therapy, inpatient treatment, and public health. Her counseling style and ideology emphasize cognitive behavioral therapy and existential psychotherapy. |
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Hillary Zaneveld Licensed Therapist-Lead Clinician; York-Poquoson Office Education and Credentials
Specialty/Area of Expertise Ms. Zaneveld primarily works with adults in the outpatient counseling setting, providing individual and group therapy. Her style of services is based on the cognitive behavioral perspective as well as utilizing an infusion of different theoretical practices that will complement the individual's treatment goals. Additionally, she utilizes mindfulness, meditation and yoga practices to facilitate an individual’s road to recovery. |
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Additional Information Ms. Zaneveld has worked in the field of mental health and substance use at the inpatient and outpatient levels since 1999. She has previous experience working as a Crisis Intervention Trainer for the City of Chesapeake and gained military experience through eight years of service in the U.S. Army Reserves Medical Service Corps. Ms. Zaneveld facilitates the intensive outpatient program at the York-Poquoson Office. |
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