For more information or to schedule an appointment
please call 703-659-9900 or email us

Our Loudoun Staff

Dr. Cassandra McDonnell, Ph.D., Licensed Clinical Psychologist

Director Loudoun

I am a licensed clinical psychologist, and provide counseling and psychological assessment services to school-aged children, adolescents, and adults. I am originally from the Northern Virginia area, and received my Bachelor of Science in psychology from The College of William and Mary. I then went on to obtain Master and Doctoral degrees at University of Missouri St. Louis with specializations in Behavioral Medicine and Child Psychology. I completed my post-doctoral training at University of Virginia, and have been practicing within Loudoun County ever since. I have provided psychological services in residential, inpatient, community clinics, schools, and integrated primary care settings. I first learned about Youth for Tomorrow through my work with local teenagers and their families, and was excited to join the organization in July 2018, adding outpatient psychological assessment to their wide range of behavioral services.

Clinically, I work with a wide variety of presenting issues and concerns. My specific areas of specialization include anxiety disorders, posttraumatic stress, grief and loss, and behavioral medicine concerns (such as chronic pain, insomnia, and behavioral adjustment to chronic/major medical conditions). I have additional specialization and certification in working with children and adolescents with sexual reactivity and/or sexually abusive behaviors. In counseling, I utilize an integrative cognitive-behavioral approach that incorporates acceptance, mindfulness, and values work. I am passionate about working collaboratively with individuals and families to apply evidence based treatment concepts within the context of uniquely personal patient needs and goals.

Jennifer O'Bryan, LCSW Intake Coordinator/Outpatient Therapist

I am a Licensed Clinical Social Worker (LCSW) in the state of Virginia. I graduated from Radford University with both my graduate degree in Social Work and my undergraduate degree in Social Work with a minor is psychology. I have worked with children, adolescents, young adults and families using an eclectic approach tailored to the unique needs of each client. I have worked in the field for over 15 years in a variety of settings, including both long-term and brief interventions. My clinical experience with children and adolescent mental health disorders includes, but is not limited to: anxiety, depression, trauma, substance abuse, bipolar disorder, borderline personality disorder, attachment disorders, physical and sexual abuse, school problems, behavioral issues, and ADHD. The theoretical models that I use includes a combination of person-centered, cognitive-behavioral therapy, mode deactivation therapy, parent management training, and motivational interviewing techniques. I utilize and incorporate variety of mindfulness techniques, as well as art therapy techniques when working with clients. I provide play therapy, and currently under supervision to become a Registered Play Therapist.

 Kelly Davis, LCSW

I am a Licensed Clinical Social Worker (LCSW) in the state of Virginia and a Licensed Certified Social Worker – Clinical (LCSW-C) in Maryland. I received my Bachelor of Science Degree in Social Work from George Mason University and my Master Degree in Clinical Social Work from University of Maryland at Baltimore. My primary clinical focus has been working with at risk children, adolescents, young adults and families with emotional and behavioral disturbances, residing within the community and out of home residential placements. My clinical experience includes, but is not limited to treatment for anger management, anxiety, depression, attention deficit disorders, oppositional defiance and conduct disorders, substance use/misuse, trauma and attachment disorders, school problems and other mental health and behavioral challenges.

I utilize a holistic, strengths-based approach, to help individuals develop self-awareness and insight into their past and present experiences and remove obstacles to personal growth and healing. Clinically, I incorporate concepts of cognitive behavioral (CBT) and mode deactivation therapies (MDT) , with some elements of acceptance and commitment therapy (ACT) and dialectical behavior therapy (DBT). My overall approach is geared towards helping the individual identify, connect and bring about meaningful change, while also learning how to accept the pain that life unavoidably brings during different seasons of our lives. 

Aisha Thompson PhD, LCP
Clinical Psychologist and Substance Abuse Program Loudoun

Dr. Thompson is a Licensed Clinical Psychologist and Substance Abuse Program Coordinator. She has devoted her career to serving children, adolescents, and families. She is excited to be a part of the Youth for Tomorrow team. Dr. Thompson is passionate about empowering others to access their God-given potential, learn from their experiences, and grow to be the best version of themselves.

She received her Bachelor of Science degree in Psychology from The University of Mary Washington. She has a Masters of Education in Risk and Prevention from Harvard University and a Doctoral Degree in Clinical Psychology from the University of Virginia. She completed her postdoctoral residency at Virginia Commonwealth University Medical Center and has been working in the Northern Virginia area ever since.

Dr. Thompson has experience in a variety of clinical settings such as inpatient, intensive outpatient programs, partial hospital programs, community mental health, and residential care. She specializes in assessment and diagnostic services, substance use disorders, co-occurring disorders, developmental and complex trauma, and serving at-risk and underserved populations. She is committed to using evidenced-based practices and applies a strength-based and person center approach.
In her spare time, she enjoys spending time with family & friends, practicing yoga, art, and enjoying the outdoors.

Kathleen King, MSW, Supervisee for LCSW

Hi, I’m Kathleen. I received my Master’s Degree in Social Work at the University of Pennsylvania and my Bachelor’s Degree in Psychology at George Mason University. I am currently working under supervision toward becoming a Licensed Clinical Social Worker. I have experience working in a variety of settings including a correctional facility, school environment, and court setting with both adolescents and adults. My experiences have mainly consisted of providing emotional and behavioral support, psychotherapy, and case management to individuals within in the criminal justice system. Most of my work has been centered on providing trauma informed care and helping individuals develop healthy coping skills while focusing on individual strengths. My goal is to provide a welcoming and non-judgmental space filled with compassion and support to help individuals overcome obstacles. Outside of work I enjoy spending time with my family, reading, and being outdoors with my dog Sammy.