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Shannon McWilliams, MSW, LCSW

Provides individual and family therapy to children, adolescents, and adults and utilizes a strength-based, solution-focused framework to collaboratively with and support clients through life’s challenges and struggles.


Prior to Neighborhood Health, Ms. McWilliams practiced in a variety of settings gaining experience with a diverse range of populations and issues.  She worked as a School-Based Mental Health Therapist in a school for children with emotional and behavioral challenges.  Ms. McWilliams worked as a Psychiatric Crisis Intervention Therapist helping clients safely prevent the need for hospitalization.  She also worked as an Outpatient Therapist in a mental health clinic and as an Intensive Family Preservation Therapist helping clients to better meet the challenges of raising children.  In graduate school she completed clinical internships providing therapy to those affected by HIV/AIDS as well as providing trauma therapy to survivors of sexual abuse and domestic violence.  


​Ms. McWilliams holds a Master of Social Work degree from Syracuse University specializing in clinical social work.  She also holds a Bachelor of Arts in Psychology, a Bachelor of Arts in Women’s Studies, and a Certificate of Advanced Studies in Women’s Studies. In 2012, she obtained her clinical licensure in Virginia and is a member in good standing of National Association of Social Workers.    

Adam Prestegord, MSW, LCSW, CSAC-A

Provides individual and family therapy to adults, adolescents, and children.  Using a client-centered approach, he supports clients from diverse cultures in processing concerns such as depression, panic, anxiety, self-esteem, substance abuse, and domestic violence.  


Prior to Neighborhood Health, Mr. Prestegord worked as a Clinical Case Manager for Cornerstones in Reston, Virginia. In that position, he provided therapy, education, and referral services to low-income families transitioning out of homelessness in Fairfax County. He also completed placements at the Inova Juniper Program and the Inova Employee Assistance Program as part of his master’s program. At the Juniper Program, he provided therapy to individuals diagnosed with HIV and assisted them in processing their diagnoses and developing coping skills.  At the Employee Assistance Program, he utilized short-term solution-focused counseling and crisis intervention with various client populations. 


​Mr. Prestegord holds a Master of Social Work Degree from George Mason University and is certified in Virginia as a Substance Abuse Counselor Assistant. He has completed additional training in psychodynamic family therapy at the Washington Center for Psychoanalysis  and substance abuse counseling at Northern Virginia Community College.​

​​Molly Milgrom, MSW, LCSW 

Provides social-emotional therapy services to individuals and families of all ages in both Spanish and English.  She supports clients with a variety of challenges including depression, anxiety, life transitions, trauma and abuse, self esteem, and family relationships.


Prior to her work at Neighborhood Health, Ms. Milgrom completed internships as a clinical social worker and psychotherapist at the Catholic University Counseling  Center and The Frost School, part of Sheppard-Pratt Health Systems, while completing her Master of Social Work at the National School of Social Service at Catholic University of America. Molly provided weekly individual counseling to undergraduate and graduate students for brief or longer-term treatment for a range of presenting issues at the Catholic  University Counseling  Center.  At Frost, Molly co-facilitated group therapy and group family therapy for high school students suffering from emotional disturbance. During the summer between these internships, Molly worked at a technical high school in Managua, Nicaragua where she initiated a comprehensive support program for the students and faculty.


Molly’s previous experience includes 10 years as a meeting and event planner for trade associations and corporate groups across the United  States and abroad. Molly is an avid world traveler and has spent significant time in Southeast Asia, Europe, and Central America.  

Courtney Riggle-van Schagen, MSW, LCSW

Provides individual and family therapy to children, adolescents and adults in the community health care setting in English and Spanish, both of which she is fluent in. She has significant expertise working with the Latino community and strong multicultural competency and experience working with diverse client populations. She also regularly collaborates with the City of Alexandria Public Schools to provide mental health services and facilitate trainings for parents and other child care providers within the community.  Ms. Riggle-van Schagen has collaborated with the City of Alexandria’s Domestic Violence Intervention project, and in October of 2007 was recognized for outstanding service to survivors of domestic violence. She is also an alumnus of the National Health Service Corps, and a member in good standing of the National Association of Social Worker’s. 


​Ms. Riggle-van Schagen holds a Master’s in Social Work from the University of Maryland, Baltimore, with a specialization in Clinical Mental Health. She also holds a Bachelor’s of Science in Human Development and Psychological Services from Northwestern University. In 2008 she obtained her clinical licensure in the state of Virginia and in 2012 completed training to provide clinical supervision toward licensure, recognized by the Virginia Board of Social Work. 

Behavioral Health Therapists