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Hiking in Nature


Mark Becker, LCSW-C

Director and Founder of The DBT Center

Mark specializes in treatment with adolescents and adults.  Mark has 20 years of experience working in the field of mental health and has been practicing DBT for the past 10 years.  Mark started his career working in an adolescent group home at Chestnut Lodge Hospital.  In 2006, he graduated with a Master's degree in Social Work from the University of Maryland School of Social Work.  Mark has worked in a variety of settings including a psychiatric hospital, a university health center, a community mental health center, special education high schools, and private practice.  After many years in private practice, Mark founded The DBT Center.  He is passionate about comprehensive DBT and is thrilled to offer this vital service to the community.

In his free time, Mark enjoys cooking, playing games, being outdoors, and spending time with his family and friends.

Clinicians: About Me
Dandelion Parachute Seed

Ariana Beldoch, LCSW-C

Ariana is a graduate from the University of Maryland School of Social Work. Ariana has provided therapy to adolescents and adults in group home, outpatient, and private practice settings. She has worked as a DBT therapist in an intensive outpatient setting and was the Program Manager of the DBT Mental Health Intensive Outpatient Program (IOP) at Potomac Pathways. She utilizes a strengths-based approach to work collaboratively with clients struggling with issues such as depression, self-harm, anxiety, interpersonal conflict, and addictive behaviors.

Calm Sea

Marian Hwang Schill, LCSW-C

Marian is a graduate from Columbia University School of Social Work in Advanced Clinical Practice, with a specialization in Dialectical Behavioral Therapy (DBT).  While in graduate school, she was part of the Columbia University DBT Training Program, which consisted of intensive training and research in DBT with suicidal adults, adolescents, and the correctional population.  She has also worked as a DBT therapist in an intensive outpatient program and was DBT clinical director at Potomac Pathways, providing supervision and clinical services to individuals with substance use and trauma.

Spring Branches

Fangyu (Hope) Qi, LCSW-C

Hope Qi, LCSW-C, graduated from Columbia School of Social Work with a Master of Science in Social Work and completed the DBT Training Program. Hope has additional training in motivational interviewing, prolonged exposure therapy, and cognitive behavioral therapy for advanced suicide risk assessments.

Hope previously worked in a public school where she utilized evidence-based clinical practice to address school and family-related stresses.  In addition, she has provided DBT in an adult outpatient hospital psychiatry department for patients with borderline personality disorder and other mental health . Hope was also the program manager at a local intensive outpatient substance abuse treatment center for adolescents and young adults, where she provided DBT individual treatment and DBT skills training to help clients achieve their life-worth-living goals. 

Having the experience of growing up and studying in both China and the United States, Hope developed a unique understanding in how cultural differences and family of origin issues impact clients’ growth. She is able to provide treatment in both English and Mandarin.  She is currently independently licensed in both Maryland and Virginia.

Dandelion Fields

Erin Robbins, LCPC

Erin is a graduate of Clemson University and a Licensed Clinical Professional Counselor. Erin has experience working with adolescents and young adults in several settings, including community based care, school environments, and mental health clinics. Erin has provided DBT services at both intensive outpatient (IOP) and partial hospitalization (PHP) levels of care and was a team lead for the day treatment program at Potomac Programs.

Two Dried Leaves

Erin Reddinger, LCSW-C

Erin Reddinger earned a Master's degree in Social Work from the State University of New York at Buffalo. She has worked with families and adolescents providing therapy at in-home, residential, and day treatment programs.  Erin is trained in DBT and has been practicing and applying the DBT concepts to support families with managing difficult emotions and improving relationships.  Erin previously worked in a residential setting for at-risk youth and their families utilizing DBT as the primary mode of treatment for both the individual and their families. In addition to being trained in DBT, Erin is also trained in Functional Family Therapy and Trauma-Focused Cognitive Behavioral Therapy (TF-CBT).

Erin is originally from Western New York and enjoys spending time visiting family and friends, exploring the DC area, walking her dog, reading, and traveling.

Forest Trees

Betty Bae, LCSW-C

Betty Bae is a licensed clinical social worker who specializes in working with adolescents. She graduated from Columbia University School of Social Work and obtained her bachelor’s from Colgate University. Ms. Bae has experience in providing treatment services to adolescents with problematic behaviors resulting from intense emotions in inpatient residential treatment care and juvenile justice detention settings. She has experience working with various disciplines in coordinating therapeutic treatment involving different systems. She also has worked with adolescents that have experienced trauma and abuse while working in therapeutic foster care and an outpatient practice servicing children in domestic violence situations. 

She is intensely trained in DBT-PE (prolonged exposure), a gold standard treatment for those with chronic and complex presentations and severe trauma history. She also provides parent coaching services. Ms. Bae has over 10 years experience providing comprehensive DBT individual therapy and skills training in the private practice setting.  She specializes in clients who have long mental health histories and have not found the desired relief.


Ruth Williams, LGPC

Ruth Williams has a Master's degree in Professional Counseling from Cairn University and is currently a Licensed Graduate Professional Counselor.  Ruth has provided individual, group, and family therapy to children, adolescents, and adults in community outpatient mental health and private practice settings.  She works collaboratively with clients and families who are struggling with anxiety, depression, eating disorders, and self-harm behaviors.  Ruth uses goal-oriented therapy and DBT to help clients develop new skills in order to cope and change unhealthy behaviors.

Forest Trees

Meage Clements, LCSW-C

Meage earned a Master's degree in Social Work from the University of Maryland, School of Social Work. She has experience providing both individual and family therapy with children, adolescents, and adults in home-based, community-based, schools, and outpatient mental health clinic settings.  Most recently, Meage served in the role of a DBT family therapist at an intensive outpatient mental health clinic where she utilized DBT-informed family therapy techniques to support clients and their families.  In addition to her training in DBT, she has training in TF-CBT and Child-Parent Psychotherapy (CPP). 

Meage is a Maryland native and, in her free time, she enjoys reading, trying new restaurants, and exploring the Washington D.C. metro area.

Rock Balancing

Ilene Marto Atiyah, LCSW-C

Ilene is a graduate of the Columbia University School of Social Work with a focus on Advanced Clinical Practice. Her experience includes supporting adolescents, young adults, and their families with their mental and behavioral health challenges, including co-occurring substance use.  Ilene worked in an IOP setting for the past three years and most recently served as DBT Program Director for Potomac Programs (previously Potomac Pathways). Ilene is DBT trained and believes in a warm, collaborative, and strengths-based approach to support her clients to live their life worth living. Prior to entering the social work field, Ilene worked in international financial services and nonprofit leadership. She is married with two teens of her own and enjoys cooking, reading, being outdoors, spending time with family and friends, and traveling near and far.


Brianna Wilson, LGPC

Brianna earned her Masters of Science in Clinical Mental Health Counseling from Johns Hopkins University.  Brianna is trained in DBT and trauma-focused cognitive behavioral therapy (TF-CBT).  She is passionate about incorporating experiential activities into the DBT framework as a way of engaging with presenting concerns in a new way.  She has worked with adolescents and young adults in residential, PHP, and IOP settings.  She has experience supporting clients with trauma disorders, varying mood disorders, self-harming behaviors, suicidal ideation, and addictive patterns.  Outside of work, Brianna enjoys catching up on her reading list, trying new recipes, and spending time outdoors.

Landscape Site Consultation

Beth Lawler, LMSW

Beth works part-time at the DBT Center.  She believes that providing therapeutic support for individuals and families is a calling and that change happens when individuals and families are ready.  She helps her clients set goals based on their wants and needs, meeting each person where they are, helping them to move to where they want to be. 


Beth received her Bachelor’s degree in Management from The Johns Hopkins University and her Masters in Social Work from the University of Maryland, Baltimore. Her focus during her clinical program was on mental and behavioral health.


She has experience working in community-based residential inpatient programs, adolescent substance use intensive outpatient programs, mental health intensive outpatient programs, and private practice.


Outside of work, Beth is a mom to three wonderful persons and a dog mom to two quirky and fun four-legged babies. She enjoys reading and soccer and her very large extended family.

Jennifer Wilder, LCPC, NCC 

Jennifer holds her Masters of Science in Clinical Mental Health Counseling from Johns Hopkins University.  She previously served as DBT Therapist in a partial hospitalization program and intensive outpatient program and has worked in hospitals, community organizations, schools, and universities.  Her passion includes helping adolescents, adults, and families navigate the challenges of building lives worth living. 


Jennifer brings cross-discipline professional experience helping catalyze transformation in the lives of individuals and communities. She has worked as a community organizer, pastor, leader in conflict mediation, spiritual director, and advocate for high-quality affordable mental health care.  In addition to DBT, Jennifer is trained in TF-CBT, Bowen Family Systems theory, Self-Management and Recovery Training (SMART), and Animal-Assisted Therapy.  


For fun, Jennifer enjoys hiking, farming, reading, spending time with family and friends, and exploring near and far.

Image by Brandon LeClaire

Call Trevenen (They/Them), LGPC

Call earned their Masters of Science in Clinical Mental Health Counseling from Johns Hopkins University.  They have practiced DBT with adolescents and adults in multiple settings, and they believe deeply in DBT's ability to expand all humans' ways of responding to life's difficulties. 


Call is president of Maryland’s Counseling Association for Sexual, Affectional, Intersex, and Gender Expansive Persons and is passionate about practicing therapy in a personalized, affirming manner.


When not in session, Call enjoys reading, rock climbing, and philosophical conversations.

Image by Aaron Burden

Christina Fox, LCSW-C

Christina has experience practicing DBT with a range of ages, cultures, and concerns in an outpatient setting.  In session, she balances a playful attitude with a very serious commitment to helping people change their lives. 


A Colorado-native, Christina attended her undergraduate in Vermont, where she earned a major in theatre and a minor in Arabic.  After settling in the DC area, she earned her Master’s in Social Work from the Catholic University of America.   Christina practices Contextually-focused DBT (C-DBT), which incorporates the psychological flexibility model from Acceptance and Commitment Therapy (ACT) into the structure and format of DBT.


Outside of sessions, Christina is the proud human to a very adorable bunny (named Bunny) as well as two lizards.

Ray of Light

Valentina Ross, LMSW

Valentina is passionate about working with clients who are in the LGBTQ+ community, who have experienced complex trauma, or who have symptoms of borderline personality disorder. Valentina views therapy as a collaborative process and looks forward to utilizing the life-changing principles of DBT to help clients reach their goals.


Valentina earned her Master of Social Work from the University of Maryland, Baltimore, and her Bachelor of Science in Music Education from Towson University.

In her free time, Valentina enjoys writing music, visiting art museums, and implementing DBT skills in her own life.


Amanda Lewis, LMSW

Amanda (she/her/hers) earned her Master’s in Social Work at Simmons University.  She trained in DBT through Behavioral Tech.  Amanda chose to specialize in DBT for its effectiveness in helping people reach their life-worth-living goals through practical skills and mindfulness.  Her approach to therapy is also informed by feminist and social justice perspectives.  Amanda has worked with adults and adolescents in outpatient and community settings and has experience supporting clients with trauma histories, mood disorders, self-harm, and suicidal ideation.  Before entering the social work field, Amanda worked in humanitarian aid and international development. 

Amanda enjoys being outside, walking, biking, reading, and spending time with friends and family.


Jake Hollander, LMSW

Jake believes everyone deserves to live a full and meaningful life. This belief informs his person-and-environment, empathetic approach. Jake assists clients in detecting how specific patterns in emotions, behaviors, thoughts, and environments may hold us back from our true potential. In doing so, he also empowers clients to identify and implement skills and strategies that engage strengths, solve problems, and generate meaning.


Prior to joining the practice, Jake served adolescents and adults on the inpatient units of Shady Grove Medical Center. Additionally, he provided evidence-based care to young adults and adolescents in intensive-outpatient and partial-hospitalization programs for substance use and mental health at Sandstone Care. Before his social work career, he worked with nonprofits and nonpartisan public policy. Jake earned his Masters of Social Work at the University of Maryland, Baltimore and is a Licensed Master Social Worker in Maryland.


In his free time, Jake enjoys spending time with his wife and their two dogs, creating music, watching hockey, and discussing philosophy.

Foggy Forest

Mark Garrett, LMSW

Mark earned his Master of Social Work from the University of Maryland, Baltimore.  He is passionate
about guiding his clients through the stages of change and acceptance into their personal breakthroughs.
Mark enjoys working with people across various ages, especially young adults through older adults.


Mark brings a cross-disciplinary experience to the therapy session as a clinical therapist.  He also holds a Master of Divinity degree and conducted pastoral counseling with individuals, couples, and families for many years.

Finally, Mark enjoys getting outdoors to enjoy nature through hiking, camping, kayaking, and spending
time with family and friends.

Image by Brandon LeClaire

Rebecca Miller, LGPC, MEd

Becky (she/her/hers) is a graduate from  Lesley University’s program in Clinical Mental Health Counseling and Expressive Arts Therapy.  Becky has experience providing individual and group therapy in a variety of settings, including inpatient, residential, and schools. 


In addition to being a licensed counselor (LGPC), Becky is also trained as an expressive arts therapist and is passionate about integrating the arts into her sessions (as appropriate)  to create a middle path between the cognitive behavioral approaches of DBT and the more kinesthetic, creative, focused work found in expressive arts therapy. 

In her free time, Becky enjoys throwing pottery, spending time with her family, and flying trapeze.

Gentle Stream

Margaret (Lindsay) Koosed, MSW

A native of Virginia Beach and a resident of Maryland, Lindsay self-identifies as a New Yorker. As a graduate of University of Maryland’s School of Social Work,  Lindsay came to DBT after a long and varied career that started with attending New York University’s Tisch School of the Arts. After spending several years as a rehearsal director of a modern dance company in NYC- while also founding the Pilates business for the Equinox chain of gyms- Lindsay began volunteering as a crisis counselor. This led her to consider a career in social work which she pursued in earnest after her two children were born.  Upon moving to Maryland, Lindsay began work as a crisis counselor, assisted in training and supervising other crisis counselors, and helped establish the local chapter of the National 988 Suicide and Crisis Hotline.  She has extensive training in crisis prevention and intervention services. 


Lindsay works with adolescents and adults who want to better understand emotion regulation and create their life worth living.


Interested in joining our team?  Send a letter of interest and CV to our Director, Mark Becker

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