Center for Family Development
Meet the Team
Tasha Berroa, MSW, LCSW
Tasha joined the CHS family in 2018 and has over six years of clinical experience. She obtained her MSW from Barry University. She has had training on Motivational Interviewing, domestic violence, substance abuse, and more. Tasha sees clients ages 5-21.
Tasha's clinical specialties include trauma/abuse, educational problems, depression, relationship issues, self-esteem, substance abuse, suicidal ideation, and working with victims of crime.
Languages spoken: English and Spanish
George Bistany, MSW, LICSW
George is the clinical director for all three of our sites. He has been serving as our clinical director since 2017 and has over 30 years of clinical experience. George attended Boston University for his degree, and belongs to NASW (National Association of Social Workers). He serves client from age 11 and up.
George's clinical specialties include treating conditions of depression, anxiety, and stress. He utilizes elements of CBT, supportive counseling, motivational interviewing, relational therapy, solution-focused therapy, motivational interviewing, and relaxation techniques. His hobbies include day trips, hiking, mountain biking, and time with his family.
Languages spoken: English
Jennifer Bowman, LCSW
Jennifer specializes in: abuse/trauma, anxiety, Autism spectrum disorder, child neglect, depression, developmental delays, mood disorders, relationship issues, self-esteem, self-harm, suicidal ideation, trauma focused CBT, and working with victims of crime. She sees clients ages 21 and over.
Mary Clouter, LCSW
Mary specializes in working with abuse/trauma (w/ adults), Alzheimer’s disease, anxiety, Bipolar disorder, bullying, depression, incarceration, mood disorders, relationship issues, self-esteem, self-harm, social anxiety, substance abuse, suicidal ideation, and victims of crime. She sees clients ages 16 and up.
Anzhela Grystyna, MSW, LCSW
Anzhela joined the Center for Family Development in 2017. She obtained her MSW from University of Texas at Arlington. Anzhela has over a year of clinical experience in social work. She belongs to NASW (National Association of Social Workers) and ASWB (Association of Social Work Boards). She sees clients ages 5 and up.
Anzhela’s clinical specialties include educational problems, substance abuse/addiction, Autism spectrum disorder, anxiety, body image issues, ADHD, coping skills, cognitive disorders, domestic violence/abuse, learning disabilities, mood disorders, parenting, stress, spirituality, and trauma.
Languages spoken: English, Greek, Russian, Ukranian
Colleen Kellner, LMHC
Colleen specializes in working with abuse, anxiety, depression, divorce, learning disorders, and self-esteem issues. She sees clients ages 21 and over.
Marlene Lederman-Davis, Ph.D.
Marlene specializes in working with abuse/trauma (w/ adults), stress, agoraphobia, anxiety, Bipolar disorder, depression, divorce (w/ adults), grief, insomnia, mood disorders, neuro-cognitive disorders, Obsessive compulsive disorder, panic disorders, personality disorders, relationship issues, self-esteem, self-harm, social anxiety, suicidal ideation, and victims of crime. She sees clients ages 16 and up.
Linda Littlefield, LICSW
Linda specializes in abuse/trauma, anxiety, ADHD, Bipolar disorder, depression, divorce, grief, homelessness, incarceration, learning disorders, relationships, schizophrenia, self-harm, and substance abuse. She sees clients ages 16 and up.
John McCord, LCSW
John specializes in working with abuse/trauma, phobias, substance abuse/addiction, relationship issues, grief, divorce, homelessness, incarceration, gender dysphoria, learning disorders, developmental delays, self-image issues, self-harm and suicidal ideation, and more. He sees clients ages 5 and up.
Nicole Nickerson, LICSW
Nicole specializes in working with stress, anxiety, depression, grief, homelessness, relationships, schizophrenia, self-esteem, social anxiety, and suicidal ideation. She sees clients ages 21 and up.
Ken Powers, MS
Ken Powers has been with the Center for Family Development since 2012, and has over 38 years of clinical experience. Ken has his M.S. in Gerontology, and has attended the University of New Hampshire, Boston College, and University of Southern New Hampshire. As well as being a part of the community at CFD, Ken has been the CEO of Lowell House, Inc. since 1989. He has also served as a professor and lecturer at Middlesex Community College and UMass Lowell, respectively.
Ken treats clients ages 18 and up. His clinical specialties are substance Abuse, CBT, group therapy; HIV/AIDS and related issues. When not at work, Ken enjoys Celtic acoustic guitar, writing fiction, flower gardening, and surf casting.
Languages spoken: English
Daphne Serwatka, MSW, LICSW
Daphne has been with the Center for Family Development since 2017 and has over 20 years of clinical experience. She obtained her M.S.W. from Boston University. Daphne belongs to NASW (National Association of Social Workers), and works with all clients across the lifespan.
Her clinical specialties include Cognitive-Behavioral, Solution-Focused, Relational, and Compassion-Focused therapies; treatment of depression and anxiety, grief and loss, self-harming behaviors; conflict resolution, stress management, promoting healthy self-esteem and personal growth. Daphne enjoys cooking, reading, nature, fitness.
Languages spoken: English
Althea Terrell, MSW
Althea specializes in working with abuse, anxiety, ADHD, Autism Spectrum Disorder, Bipolar disorder, Bullying, childhood neglect, depression, developmental delays, divorce, grief, hoarding, homelessness, learning disorders, Obsessive compulsive disorder, relationship issues, self-esteem, social anxiety, substance abuse, and trauma-focused CBT. She sees clients ages 10 and up.
Timothy Wight, LCSW
Timothy specializes in working with abuse/trauma, educational problems, stress, anxiety, ADHD, Autism spectrum disorder, Bipolar disorder, bullying, child neglect, depression, developmental coordinator disorder, developmental delays, gender dysphoria, grief, homelessness, incarceration, insomnia, kleptomania, learning disorders, mood disorders, motor/vocal tic disorders, neurocognitive disorders, nightmare disorder, Obsessive compulsive disorder, body image, panic disorder, personality disorders, pyromania, relationship issues, self-esteem, self-harm, schizophrenia, sex counseling, social anxiety, suicidal ideation, trauma focused CBT, and victims of crime. He sees clients ages 3 and up.
Irene Zen, BS, MA, MSN, PMHNP-BC
Irene has served as a Psychiatric Nurse Practitioner for Comprehensive Health Services since November 2016. She worked on-site in Lowell (Center for Family Development), Chelmsford (Stony Brook Counseling Center), and Needham (Charles River Counseling Center) during 2016-2017. In 2018, she moved to North Carolina, where she currently resides and treats patients via telepsychiatry. She specializes in children and adolescent psychiatry, but is trained and experienced in all age categories.
Irene received her B.S. in Psychology and Pre-Medicine from Duke University in 2003 as well as her M.A. in Medical Sciences from Boston University in 2006. Her thesis was published on "The Relative Efficacy of Atypical Antipsychotics among Schizophrenic Patients." She transitioned from clinical research to nursing and graduated with her M.S.N. from Northeastern University in 2016. She has served as a clinical nurse instructor for both Northeastern University and Boston College. When she is not practicing as a nurse practitioner, she enjoys fitness, walking her dog, and dancing.
Languages spoken: English