Dr. Kelly Ann Colby, Psy.D.
Licensed Clinical Psychologist
Licensed Clinical Psychologist
Dr. Kelly Ann Colby is a child and adolescent psychologist specializing in the treatment of anxiety disorders, OCD, phobias, and panic in children, adolescents, and transitional age youth.
She completed her APA-accredited internship at The Guidance Center, Inc. in Leavenworth, KS, where she trained in child and family services alongside neuropsychological assessment, and was accepted to a postdoctoral fellowship at CBTeam in Lexington, MA, where she received training and supervision from experts who helped lead McLean's OCDI and Boston Children's Hospital in CBT and ERP. Dr. Colby also completed a clerkship in neuropsychology at NAC Clinic (Previously NP Evaluation) in Brookline, MA. Prior to starting her private practice, Dr. Colby was employed as the clinical psychologist and consultant for Groton School, supporting students while working alongside a multidisciplinary health care team.
Dr. Colby holds a masters in professional psychology and a doctorate in clinical psychology with a concentration in health psychology. She has published work on the psychological and physiological impacts of exposure to chronic stress and enjoys treating health-related concerns such as health anxiety and needle phobias. Her approach is warm, collaborative, and grounded in evidence-based care. She believes therapy should function as a space where clients can reflect on their concerns, explore new solutions, and learn skills that truly make life feel more manageable.
Certificates and Trainings
Curious how Dr. Colby is staying up to date and able to provide the highest level of care? Below are her upcoming and most recently earned certificates, workshops, trainings, and conferences.
Psychiatric Evaluations for Bariatic Surgery by Dr. Southey F. Saul, Ph.D. (12/3/2025)
Communal Music and Well Being/Mental Health by Dr. Mayron Piccolo, Ph.D. (12/10/2025)
Coming Together for the Holidays: A Fireside Chat for Parents, Guardians, and Caregivers hosted by the Tourette Association of America (12/15/2025)
2025 Faith and OCD Conference hosted by the IOCDF (11/19/2025)
Anxiety and Depression Association (AADA): Managing the Invisible Load, Letting Go of Perfection and Finding Realistic Ways to Reset Under Pressure by Dr. Rachel Busman, PsyD, ABPP; Dr. Lynne Siqueland, PhD; Abigail Powers Lott, PhD; Dr. Devon LoParo, PhD (11/12/2025)
American Psychiatric Association: Difficult Conversations by Dr. Mena Mirhom, MD and W. Kamau Bell (11/5/2025)
Evergreen ADHD Clinical Service Provider (ADHD-CCSP) Certification Course: Strength-based Interventions to Thrive with ADHD from Childhood to Adulthood (10/30/2025)
Evidence-Based Assessment and Psychotherapeutic Interventions for PTSD: Clinical, Cultural, and Multidisciplinary Perspectives by Dr. Daniella Furey, Psy.D. (10/08/2025)
Professional Memberships & Affiliations
International Obsessive Compulsive Disorder Foundation (IOCDF)
Anxiety and Depression Association (AADA)
Massachusettes Psychological Association (MPA)
American Psycholoigcal Association (APA)
Want to learn more? You can find us on IG @colbyandcopsychservices
114 Waltham St. Suite 25, Lexington, MA 02421
Colby & Co. Psychological Services, PLLC. Est. November, 2024
Website established November, 2025
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