Clinicians

Heather Powell, Ph.D.

Dr. Powell is a licensed psychologist who specializes in the neurocognitive assessment and treatment of children and adolescents with attention deficit disorders (ADHD), learning disabilities, psychiatric illness, and emotional and/or behavioral issues. She also has experience working with gifted and talented as well as twice exceptional (i.e., gifted students with learning challenges) students.

In addition to psychological evaluations, Dr. Powell provides psychological and behavioral treatments for children and adolescents who may be struggling with a variety of issues, including anxiety, depression, and anger problems. She utilizes a strengths-based approach, helping children and families identify strengths and learn to use them to address their challenges. Dr. Powell's treatment style relies mainly on cognitive and behavioral strategies to increase coping skills, and decrease maladaptive responses to stress. She also specializes in gradual exposure techniques to address anxiety.

Dr. Powell has worked in a variety of mental health and educational settings, including psychiatric hospitals, residental treatment centers, children's hospitals, public schools, and community private practice. She holds a Masters in Psychology from American University in Washington D.C. and a Ph.D. in School Psychology from the University of South Florida. She completed a clinical internship at the Kennedy Krieger Institute/Johns Hopkins School of Medicine, and a two-year post-doctoral fellowship at the Johns Hopkins School of Medicine. She then served as a staff psychologist at the Johns Hopkins Hospital for a number of years before opening Jones Falls Psych Associates in 2012.

Dr. Powell is a member of the American Psychological Association and the Maryland Psychological Association, and serves on the Board of Directors of the Maryland branch of the International Dyslexia Association.

Dr. Powell is originally from the Midwest, but has lived in the Baltimore area since 2006. She currently lives in Towson with her husband and three children.

Megan Williams, M.S., LCPC

Megan is a Licensed Clinical Professional Counselor serving children of all ages and their families. She uses a strengths-based approach to build resilience in the face of challenge and change, tailored to each individual situation.

Megan specializes in the treatment of traumatic stress and has advanced training in Trauma-Focused Cognitive Behavioral Therapy and Eye Movement Desensitization and Reprocessing (EMDR). She also supports clients to manage anxiety, depression, grief, adjustment stress, ADHD, oppositional behaviors, and more. She uses engaging methods to help children and parents explore their experiences, develop coping skills and strategies, change difficult behaviors, and develop lasting solutions. Her integrative therapeutic approach includes play therapy, attachment-focused interventions, behavioral therapy, and parent-child interaction therapy. She views parents and caregivers as essential partners in the healing process.

Megan holds a Masters degree in Counseling Psychology from Loyola University Maryland. She worked as a therapist in a community mental health center in northeast Baltimore, treating a wide range of clinical concerns in children and adults as well as leading the child therapy team and serving as the assistant director of the outpatient clinic. Megan has also served as a staff care therapist at the U.S. Agency for International Development. She is a Licensed Clinical Professional Counselor and Approved Supervisor in Maryland and a Licensed Professional Counselor in the District of Columbia.

Megan’s interest in mental health was inspired by the first half of her career working in international relief and development. She spent more than a decade supporting child development and child protection programs, primarily in post-conflict contexts in East and West Africa, and more recently mental health programs in Ukraine. Focusing on family and community-based interventions has instilled a deep appreciation for resiliency across cultures. Megan has experience supporting families who are living in challenging contexts, including people working with the U.S. Foreign Service and NGO communities. This includes helping “third-culture kids” navigate their changing circumstances.

Megan has lived in Baltimore for more than 20 years. Outside of work, she enjoys kayaking, spending time with friends and family, and reading science fiction.

David Wilton, M.S.

David is a Registered Psychology Associate who has experience providing therapy for children, adolescents, and adults across a variety of settings. His experience includes treating mood disorders such as anxiety and depression, attention-deficit/hyperactivity disorder, trauma, substance abuse disorders, psychotic disorders, as well as addressing identity exploration, relationship conflicts, and life transitions. David also has experience working with families experiencing divorce, supervising visitations between non-custodial parents and their children. He utilizes techniques from Cognitive Behavioral Therapy (CBT), Dialectical Behavioral Therapy (DBT), Psychodynamic Therapy, and mindfulness practices to meet the unique needs of his clients.

David has earned both Bachelors and Masters degrees in Psychology. He is currently pursuing a doctoral degree in Clinical Psychology at Loyola University Maryland. He is also completing two clinical externships at Clifton T. Perkins Hospital Center in Jessup, Maryland, and The Child Guidance Clinic within the D.C. Superior Courts.

David currently serves as the President of the Maryland Psychology Association of Graduate Students. He is a member of the American Psychological Association, American Psychology-Law Society, Association of Family and Conciliation Courts, Society for the Advancement of Psychotherapy, Association for the Treatment and Prevention of Sexual Abuse, and the National Academy of Neuropsychology. He is also a Teaching Assistant for Loyola’s doctoral Clinical Psychology program, where he supports students in their ability to practice psychotherapeutic interventions, conduct psychodiagnostic evaluations with adult clients, and administer personality assessments to clients of all ages.

David is originally from Saint Paul, Minnesota, and moved to Baltimore in 2021 to attend graduate school. In his free time, David enjoys rock climbing, cooking, and playing with his two cats.

As a Registered Psychology Associate, David practices under the license and supervision of Dr. Powell.

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Ariel Martin, M.S.

Ariel is a Registered Psychology Associate who has experience providing therapy for children,
adolescents, and adults in outpatient settings. Her experience includes treating
neurodevelopmental disorders such as attention-deficit/hyperactivity disorder, mood and
anxiety-related disorders and post-traumatic stress disorder. She also supports clients with
personal development through identity exploration, coping with life transitions, and managing
interpersonal relationships. She utilizes an integrative approach in her therapeutic work, which
includes Cognitive Behavioral Therapy (CBT), Dialectical Behavioral Therapy (DBT), Person-
Centered Therapy, Psychodynamic Therapy, and mindfulness techniques tailored to suit the
individual client.

Ariel also has experience engaging in milieu therapy with adolescents and adults in residential
treatment settings. In addition to therapy, Ariel conducts psychoeducational assessments for
clients who seek diagnostic clarity regarding cognitive functioning.

Ariel has earned both Bachelors and Masters degrees in Psychology. She is currently pursuing a
doctoral degree in Clinical Psychology at Loyola University Maryland. She is also completing her
clinical externship at the University of Maryland Care Clinic. Ariel is a graduate clinician and supervisee within the Loyola Clinical Center’s religion and spirituality therapy track. She is a member of Psi Chi, the Maryland Psychological Association of Graduate Students, the American Psychological Association, and the Society for the Advancement of Psychology.

Ariel was born in Trinidad and grew up in Boston, Massachusetts where she moved from in
2021 to attend graduate school. She lives in Mount Washington and enjoys dancing, singing,
and caring for her plants during her free time.

As a Registered Psychology Associate, Ariel practices under the license and supervision of Dr.
Powell.

Holly Cochran, M.S.

Holly is a Registered Psychology Associate who has experience providing psychotherapy for children, adolescents, and adults in outpatient settings. Her experience includes treating neurodevelopmental disorders such as attention-deficit hyperactivity disorder, autism spectrum disorder, mood and anxiety-related disorders, as well as helping individuals cope with neurodivergence. Holly also has experience addressing identity exploration, interpersonal conflicts, and life transitions. She utilizes an integrative approach in her therapeutic work, which includes Cognitive Behavioral Therapy (CBT), Dialectical Behavioral Therapy (DBT), Person-Centered Therapy, Interpersonal Process Therapy, and mindfulness techniques tailored to suit the individual client. In addition to therapy, Ariel conducts psychoeducational assessments for clients who seek diagnostic clarity regarding cognitive functioning.

Holly has earned both Bachelors and Masters degrees in Psychology. She is currently pursuing a doctoral degree in Clinical Psychology at Loyola University Maryland. She is also completing a clinical externship at the University of Maryland, School of Medicine in Baltimore, MD. She is a member of Division 12 of the American Psychological Association, and the Maryland Psychological Association of Graduate Students. She has also served as a Teaching Assistant for Loyola’s doctoral Clinical Psychology program, where she supported students in their ability to critically analyze and use psychological measurements.

Holly is originally from Ellicott City, MD and moved to Baltimore in 2023 to attend graduate school. In her free time, Holly enjoys cooking, baking, theatre, and cheering on the Baltimore Orioles and Ravens.

As a Registered Psychology Associate, Holly practices under the license and supervision of Dr. Powell.

Catherine Carpenter, M.S.

Catie is a Registered Psychology Associate who has experience providing therapy for adolescents and adults in outpatient settings. Her experience includes treating a wide range of mental health concerns, including attention-deficit/hyperactivity disorder, depression, anxiety-related disorders, trauma, and obsessive-compulsive disorder. She also offers clients a supportive space that promotes self-exploration, healing, and growth. Her therapeutic approach is integrative and tailored to each client's unique needs but primarily rooted in evidence-based practices from cognitive behavioral therapy (CBT), dialectical behavioral therapy (DBT), acceptance and commitment therapy (ACT), humanistic, and psychodynamic modalities. In addition, Catie conducts psychoeducational assessments for adults who seek diagnostic clarity regarding cognitive functioning.

Catie has earned both her Bachelors and Masters degrees in Psychology from the Loyola University of Maryland, where she is currently pursuing a doctoral degree in Clinical Psychology. She is also completing her clinical externship at the Bethesda Group Psychological Services. Before graduate school, she spent two years working for the National Center for School Mental Health in Baltimore, conducting research and trainings alongside the Maryland State Department of Education and American Academy of Pediatrics.

Catie was born and raised in Newtown Square, Pennsylvania. She lives in Fells Point and enjoys walking her dog, hiking, and playing the guitar during her free time.

As a Registered Psychology Associate, Catie practices under the license and supervision of Dr. Powell.