Katalyst Psychological Family Center
Dr. Katerina (Kat) Tolstikova and her professional associates provide mental health services for children, adolescents, and adults. Services are by appointment only. In addition to cash, check, and credit card payments, the following insurances are accepted: Blue Cross/Blue Shield, Cigna, Harvard Pilgrim, NH Healthy Families, Optum United Behavioral Health, Tufts, United Healthcare, and Well Sense (Beacon Health Strategies).
Katerina Tolstikova, PhD
I am a New Hampshire and Massachusetts Licensed Psychologist with a special interest in neuropsychological evaluation and psychological therapy. I have almost 30 years of professional experience from across the globe, from Russia to Canada to the US. My experience in neuropsychological assessment issues includes ADHD, learning disability, autism spectrum disorder, fetal alcohol spectrum disorder, acquired brain injury, and geriatric neuropsychology assessments. In individual and family therapy, I use a positive psychology approach to help people feel competent, fulfilled, and to make life most worth living.
Linda E. Powers, LCMHC, RN
I am a licensed clinical mental health counselor (LCMHC) in NH. I have many years of experience working with children, adolescents, and families, both in an outpatient mental health setting, and as a former pediatric and triage nurse. Life is filled with challenges throughout our journey of life, and working with individuals and families to find the best way to cope with these challenges is rewarding to me. >> Read more about Linda
Daniel Angell, Psy. D.
I am a New Hampshire Licensed Psychologist specializing in neuropsychological evaluations for children and adults. I have more than twenty years of experience working in schools in both New Hampshire and Massachusetts, where I conducted numerous psychological and academic assessments. >>Read more about Dan
Divina Girouard MS, LCMHC, MLDAC
Balance is one of the key components in our life. No matter how chaotic life can be, we strive to keep ourselves grounded but during challenging times that can be tough to do. My passion is to help you work through your challenges so that you can accomplish your goals in life. I provide a compassionate, engaging, warm, and non-judgmental space.
Divina is a New Hampshire Licensed Clinical Mental Health Counselor and Master Licensed Drug and Alcohol Counselor. >>Read more about Divina
Sandra Ackerman Psy. D.
I am a New Hampshire Licensed Psychologist specializing in compassionate and comprehensive neuropsychological evaluation for both neurodevelopmental disorders (i.e., Autism Spectrum Disorder and ADHD) and neurocognitive disorders (i.e., Alzheimer’s, Parkinson’s, Lewy Body, Frontotemporal Degeneration, stroke) in adolescents and adults. I utilize informed, data-driven case conceptualizations and provide practical recommendations that are relevant in school, medical, and/or home environments. >>Read more about Sandra
Bonnie Barlow, PhD
I am a licensed psychologist and psychotherapist. I treat every person as a unique individual and tailor treatment to your needs by using your strengths and helping you improve areas of weakness. I also consider your preferences in style of therapy. I am grounded in Jungian Informed Psychodynamic Psychotherapy, which emphasizes the development of the whole person as a means to wellness. Since I tailor therapy to each person’s needs and strengths, therapy can be different for different people. >>Read more about Bonnie
Tawnie Arnold B.A.
I am a neuropsychological examiner and office manager, working under the supervision of Dr. Katerina Tolstikova, Ph.D. I am also a doctoral student at Rivier University. >>Read more about Tawnie
Meghan Deneen, Psy.D.
I received my doctorate in clinical psychology from William James College in Newton Massachusetts, with a concentration in Children and Families of Adversity and Resilience. Before joining the Katalyst team, I worked with Boston Public Schools for several years, providing therapy and support to students, families, and educators. >>Read more about Meghan
Brooke Dumont, M.S.
I have experience working with children and adults with autism spectrum disorder, ADHD, ODD, anxiety, depression, intellectual disability, and PTSD. I received my master’s degree in mental health counseling from New England College in 2022. >>Read more about Brooke
James Whalen, M.S.Ed
I have my Master’s Degree of Science in Education from the University of Pennsylvania and am currently pursuing a doctoral degree in clinical psychology at Antioch University in Keene, New Hampshire. >>Read more about James
Dr. Vargas Lowy, Child Neurology
Dr. Vargas Lowy Child Neurology is a pediatric and adult neurologist licensed in New Hampshire, Massachusetts, Maine, and New York. >>Read more about Dr. Vargas Lowy