Founding Partners & Co-Directors
ASDI's founding partners each has more than 35 years of experience in treating anxiety disorders.
Sally Winston, PsyD
Dr. Winston is recognized regionally and nationally for her expertise in the treatment of anxiety disorders. After working at Sheppard Pratt Hospital for 17 years, she co-founded The Anxiety and Stress Disorders Institute of Maryland in 1992. She has served multiple roles including Chair of the Clinical Advisory Board of the Anxiety and Depression Association of America and was honored with the first Jerilyn Ross Clinician Advocate Award in 2011. She is co-author of What Every Therapist Needs to Know About Anxiety Disorders: Key Concepts, Insights and Interventions (Routledge, 2014).
Steven Shearer, PhD
Dr. Shearer specializes in treatment of the anxiety disorders, OCD, stress-related conditions, and mood disorders. After working at Sheppard Pratt Hospital for 13 years, he co-founded The Anxiety and Stress Disorders Institute of Maryland in 1992. For 23 years he served as a half-time faculty member in the Family Medicine Residency Training Program at Franklin Square Hospital Center. He has lectured and published on each of the anxiety disorders, OCD, depression, personality disorders, mental health care policy and physician stress.
Michael Heady, MA, LCPC
Mr. Heady specializes in evidence informed treatment of OCD, OC-related issues, panic, agoraphobia, social anxiety and generalized anxiety. He utilizes acceptance-based behavior therapies including CBT, ERP, and ACT. Mr. Heady is a board-approved supervisor and provides individual and group supervision.
Sarah Crawley, Ph.D. Associate Director
Dr. Crawley earned her Ph.D. at Temple University, followed by a fellowship at Kennedy Krieger and work experience at The Forbush School. She provides individual and family therapy to children, adolescents and young adults. She has experience working with anxiety disorders, PANS/PANDAS, OCD, mood disorders, autism spectrum disorders, ADHD, school refusal, and behavioral difficulties. She specializes in cognitive behavioral treatment of anxiety disorders.
Director of Training
Carl Robbins, MSEd, MS, LCPC
Director of Training
Mr. Robbins has over 30 years of experience in treating anxiety disorders and co-occurring mood and substance abuse disorders. His primary approach is cognitive-behavioral with extensive use of "Third Wave" approaches including Acceptance and Commitment Therapy and Mindfulness-Based Cognitive Therapy. Subspecialties include health anxiety, paruresis, and performance anxiety, including public-speaking and sports-related difficulties.
ASDI's associates all have special expertise in treating anxiety disorders.
Cynthia Browne, LCSW-C
Ms. Browne has provided therapy for children, adolescents, adults, couples, and families for 25 years. She is a graduate of Smith College School for Social Work and has taught at Towson University. She specializes in cognitive-behavioral therapy for anxiety disorders and mood disorders particularly in children and adolescents. She also practices ERP for OCD and DBT as indicated.
Michael Checknoff, LCSW-C
Mr. Checknoff provides psychotherapy for people who have anxiety disorders and other problems. He has special interests in the treatment of OCD and of school anxiety. While he focuses on working with children, teens, young adults and families, he also works with adults of all ages. He holds two degrees from the University of Virginia and an MSW from Smith College School for Social Work.
Mary Davin, MA, RYT
Ms. Davin is an experienced instructor of a variety of contemplative practices and a registered yoga teacher. For over 15 years she has taught therapeutic yoga coupled with meditative practices to diverse populations. She specializes in supporting those living with anxiety and depression in finding emotional balance through embodiment, as well as healing addictions, easing and transforming chronic pain and illness, and vibrant aging.
David Epstein, Ph.D.
Dr. Epstein provides psychotherapy to older children, adolescents, adults and couples. His areas of specialty include mood and anxiety disorders with particular focus on the behavioral problems often manifested in children and adolescents struggling with these conditions. Treatment is drawn from a variety of perspectives including psychodynamic, cognitive-behavioral and systemic.
Lisa Jordan, PhD
Dr. Jordan is a Clinical Psychologist with 15+ years of experience treating adults with anxiety, mood disorders, and psychological trauma. She has a special interest in working with substance abuse and co-occurring conditions. She provides individual psychotherapy using an integrative approach including Psychodynamic, Cognitive Behavioral, and Motivational approaches.
Jonathan Mattanah, PhD
Dr. Mattanah specializes in the treatment of anxiety and mood disorders using a combination of cognitive-behavioral and psychodynamic techniques. He also works with adolescents and adults experiencing challenging or significant life transitions. Dr. Mattanah is Professor of Psychology at Towson University.
Teri Rich, JD, MSW, LCSW-C
Ms. Rich specializes in treating adults with mood and anxiety disorders, grief, and post-traumatic stress, with an emphasis on survivors of sexual abuse and assault. She integrates a variety of treatment perspectives, including psychodynamic, humanistic existential, cognitive behavioral and dialectical behavior therapies to create distinctive therapeutic interventions rooted in personal connection. Ms. Rich holds degrees in social work and law from University of Maryland Baltimore.
Elise Rittler, MS, LCPC
Ms. Rittler provides individual therapy for adults with anxiety. She is a 2012 graduate from Loyola University of Maryland with a masters in Pastoral Counseling. Ms. Rittler works with anxiety and stress related disorders using in vivo exposure and cognitive-behavioral therapy.
Julie Samuelson, LGSW
Ms. Samuelson provides therapy for adults. She has a clinical social work degree and treats anxiety/OCD, trauma, and mood disorders. She employs a strengths-based approach that is primarily cognitive-behavioral and mindfulness-based, with an emphasis on exposure therapy when indicated. She has years of experience counseling people with chronic physical illness, addressing the broad range of challenges that can develop.
Beth Surbeck, PhD
Dr. Surbeck works with adults and has considerable experience working with undergraduate and graduate students, most recently at University Mental Health Services at Johns Hopkins School of Medicine. She particularly enjoys working with people with OCD, GAD, perfectionism and social anxiety. She employs evidence-based cognitive behavioral therapies, including exposure therapy, ERP for OCD, and Acceptance and Commitment Therapy. She has advanced training in the behavioral treatment of OCD.
Jeffrey Taulbee, MA, LCPC
Mr. Taulbee provides treatment for clients suffering from anxiety and mood disorders, with an emphasis on helping those with social anxiety and OCD. He works with adults and adolescents using a combination of Cognitive Behavioral Therapy, Exposure and Response Prevention, as well as mindfulness-based approaches. Mr. Taulbee graduated from Towson University with an MA in Clinical Psychology.
Stephnie Thomas, MS, LCPC
Mrs. Thomas provides psychotherapy to older children, adolescents and adults, utilizing mindfulness-based cognitive behavioral therapy. She specializes in utilizing exposure therapy for anxiety spectrum disorders. She offers group and individual therapy for fear of flying. She is a graduate of Loyola College in Maryland's Pastoral Counseling Program.
Veronica Tilden, PsyD
Dr. Tilden provides individual and family therapy services to children, adolescents, and young adults, and has experience with anxiety disorders, mood disorders, ADHD, disruptive behaviors/noncompliance, parent training, and family conflict. She utilizes a combination of cognitive-behavioral and family systems interventions, with a focus on acceptance and mindfulness-based techniques. Dr. Tilden is a graduate from Nova Southeastern University and previously worked at the Kennedy Krieger Institute.
Shawn Costello Whooley, PsyD
Dr. Whooley provides psychotherapy to older adolescents and adults. She specializes in cognitive-behavioral and mindfulness-based approaches for trauma and anxiety disorders, mood disorders, stress-related conditions and grief and loss.
Kimberly Welch, MEd, PhD
Dr. Welch helps young people and families navigate anxiety, OCD, depression, stress, emotional dysregulation, and social challenges. She customizes treatment using CBT, ERP, interpersonal, trauma-informed, DBT-informed, and Social Thinking interventions, and is experienced in adapting these for preschoolers and those with special education needs. Dr. Welch has degrees in Educational (M.Ed.) and Clinical (Ph.D.) psychology from UVA, completed postdoctoral fellowships at Kennedy Krieger Institute and Sheppard Pratt, and worked for many years as the supervising psychologist at a K-8 special education program (Forbush School at Glyndon/Sheppard Pratt.)
Doctoral Student Intern
Ariana Simonelli, MS
Registered Psychology Associate
Ms. Simonelli is a Doctoral Intern at ASDI and a fourth year Doctoral Candidate pursuing her Psy.D. at Loyola University Maryland. She provides individual and group therapeutic services for children and adults experiencing behavioral and emotional challenges, including anxiety, depression, emotion dysregulation, and stress-related challenges. She provides mindfulness and acceptance-based therapy, cognitive-behavioral therapy, and in vivo exposure therapy with a person-centered, multicultural approach.
Megan English, MA, LGPC
Ms. English has a Masters degree in Clinical Psychology from Towson University. She works with adults suffering from anxiety and mood disorders, with a particular interest in working with those experiencing social anxiety and OCD. She tailors treatment to each client using a combination of exposure and cognitive-behavioral therapies, with acceptance and mindfulness-based techniques.
Gittel Rifkind, MA, LGPC
Ms. Rifkind provides individual therapy for children, adolescents and adults with anxiety, OCD and stress-related disorders. She attained a master’s in counseling from Johns Hopkins University after many years as a teacher. She utilizes cognitive behavioral therapy (CBT), Acceptance and Commitment Therapy (ACT), mindfulness-based cognitive behavioral therapy (MBCT) and exposure and response prevention (ERP), all within the framework of a person-centered, strength-based approach which focuses on connection and appreciating the potential of her clients.