Our Team
Erica L. Wagner-Heimann, PsyD
Clinical Psychologist
Co-Founder & Director
Dr. Wagner completed her Doctoral internship at the University of Notre Dame where she specialized in evidence-based treatment for anxiety, depression, and related disorders. She earned her Doctorate in Clinical Psychology at The Chicago School of Professional Psychology with a concentration on Cognitive Behavioral Therapy (CBT) and trained under the mentorship of Dr. Arthur Freeman, an internationally recognized leader in the field. Dr. Wagner established an early foundation in her specialty as a Practicum Trainee, Post-Doctoral Fellow, Clinical Psychologist, and Co-Director of Doctoral Practicum Training at the Anxiety Treatment Center of Greater Chicago before opening the doors of the Center for Anxiety & OCD. She is also a graduate of the Behavior Therapy Institutes for Obsessive-Compulsive Disorder (OCD) and Body-Focused Repetitive Behaviors (BFRBs), and has extensive training in Applied Behavior Analysis (ABA), Behavior Modification, and Parent Management Training. Dr. Wagner has further expertise in treating athletes with anxiety and helping individuals enhance their mental game to reach peak performance levels.
Dr. Wagner presents at regional and international conferences, community events, and doctoral training programs. She is an active member of the American Psychological Association (APA), Association for Behavioral and Cognitive Therapies (ABCT), Beyond OCD, and the Anxiety and Depression Association of America (ADAA), where she has also served as a committee member and speaker at the national conference.
Dr. Wagner’s roots and love for the city of Chicago run deep. She thrives on time with her husband and two active children, and is an avid athlete and sports fan (go Cubbies!).
Andrea Barmish Mazza, PhD
Clinical Psychologist
Co-Founder & Director
Dr. Mazza graduated from Temple University in 2008 with a Doctorate in Clinical Psychology where she trained under the direct mentorship of Philip C. Kendall, Ph.D., an internationally recognized leader in the research and treatment of youth anxiety disorders. Dr. Mazza worked as a diagnostician and therapist on the largest multi-site pediatric anxiety treatment outcome study (Child / Adolescent Multimodal Anxiety Study (CAMS)), laying early roots in her specialty. Dr. Mazza completed her clinical internship and postdoctoral fellowship at Lurie Children’s Hospital in Chicago where she conducted individual, family, and group therapy with children and adolescents, with a continued emphasis on Cognitive Behavioral Therapy for anxiety and depressive disorders. Following her post-doctoral fellowship, Dr. Mazza worked as a Clinical Psychologist and Co-Director of Doctoral Practicum Training at the Anxiety Treatment Center of Greater Chicago, where she spent three-and-a-half years before founding the Center for Anxiety & OCD.
Dr. Mazza has presented at national research and clinical conferences and has co-authored several book chapters and peer-reviewed journal articles in the field of Anxiety Disorders in youth. She is a member of Beyond OCD (formerly OCD Chicago), the American Psychological Association (APA), and the Anxiety and Depression Association of America (ADAA).
When she is not in the office, Dr. Mazza can be found having dance parties with her two young children, trying new restaurants with her husband, catching up with family and friends, and cheering on the Cubs!
Jennifer C. Keller, PhD
Clinical Psychologist
Director
Dr. Keller completed her doctoral internship at UCLA, a nationally acclaimed program for the evaluation and cognitive behavioral treatment of anxiety, OCD, and related disorders in children, adolescents, and adults. While at UCLA, Dr. Keller provided treatment at both the UCLA Childhood OCD, Anxiety, & Tic Disorders Program and the Pediatric OCD Intensive Outpatient Program, and received direct training and mentorship from leaders in the field of anxiety. Dr. Keller earned her Doctorate in Clinical Psychology at Northwestern University, where she worked at Lurie Children’s Hospital providing empirically supported treatments to children, adolescents, and young adults with anxiety, depressive, and behavioral disorders. Recognizing her passion for the treatment of anxiety across the lifespan, Dr. Keller completed her post-doctoral training at the Anxiety Treatment Center of Greater Chicago, before opening her own thriving practice, and subsequently joining forces with long-time colleagues and friends at the Center for Anxiety & OCD.
Dr. Keller has published in professional journals and has co-written book chapters on the subject of anxiety disorders in children and adolescents. She presents at national and regional conferences, community events, and graduate training programs. She is a member of the American Psychological Association (APA), Association for Behavioral and Cognitive Therapies (ABCT), Beyond OCD, and the Anxiety and Depression Association of America (ADAA).
Dr. Keller loves the outdoors, live music, and traveling the world. She grew up on the East Coast outside of Boston, and has lived on the West Coast in both San Francisco and Los Angeles. These days, she could not be prouder to call Chicago home, and loves to explore the city with her two small children and husband.
Mary McClafferty, LCSW
Senior Staff Clinician
Ms. McClafferty earned a Masters of Social Work in mental health from the University of Illinois at Urbana-Champaign where she received training in empirically-supported care across social service, crisis intervention, and specialized hospital settings. She honed her expertise in anxiety, OCD, and related disorders at the Intensive Outpatient and Partial Hospitalization Programs at Rogers Behavioral Health, a nationally recognized facility in the treatment of anxiety and OCD, for over five years. Ms. McClafferty also provided effective treatment at outpatient specialty clinics broadening her experience in the provision of individualized, evidence-based treatment including Cognitive-Behavioral Therapy (CBT) and Exposure and Response Prevention (ERP) across the lifespan. She also has specialized experience working with parents.
Ms. McClafferty is a member of the Anxiety and Depression Association of America (ADAA).
Ms. McClafferty likes to spend time with friends and family, explore new restaurants throughout the Chicagoland area, attend live music events, and cheer on the Chicago Cubs and Bears.
William Ziolo, LCPC
Staff Clinician
Mr. Ziolo earned a Master of Arts in Counseling with a focus on sport and health from Adler University. He received training in empirically-supported care across community, therapeutic and university settings. He also engaged in specialized training in the treatment of anxiety, OCD, and substance abuse at the Intensive Outpatient (IOP) and Partial Hospitalization Programs (PHP) at Rogers Behavioral Health, a nationally recognized facility in the treatment of anxiety and OCD. Through his experience providing effective care as a treatment counselor, residential support specialist and mental skills coach, Mr. Ziolo honed his skills in the provision of individualized, evidence-based treatment including Cognitive-Behavioral Therapy (CBT) and Exposure and Response Prevention (ERP) across the lifespan. He also enjoys working with athletes.
Mr. Ziolo is a member of the Anxiety and Depression Association of America (ADAA) and American Counseling Association (ACA).
Mr. Ziolo loves adventures with his wife and two young daughters. He is an enthusiastic sports fan and likes to stay active. Go Cubs and Bears!
Kalyna Kolomayets, LCPC
Staff Clinician
Ms. Kolomayets earned her Master’s Degree from Marquette University Graduate School with a specialization in Clinical Mental Health Counseling. During her clinical training, she gained experience providing Cognitive Behavioral Therapy (CBT) to individuals and groups in outpatient settings. Ms. Kolomayets furthered her specialized training as a behavior specialist and family therapist at Rogers Behavioral Health, a nationally recognized facility in the treatment of anxiety and OCD. While working in the Intensive Outpatient (IOP) and Partial Hospitalization Programs (PHP) at Rogers, she also provided presentations to schools and community organizations as well as education and support groups to patients and patient families.
Ms. Kolomayets is a member of the Anxiety and Depression Association of America (ADAA).
Ms. Kolomayets enjoys spending time with her husband and friends, exploring new areas including national parks, and, while remaining loyal to the Buffalo Bills, she has been convinced to root for the Chicago Cubs during baseball season since moving to the Midwest.
Sarah Anita Melton, LCSW
Staff Clinician
Ms. Melton earned her Master of Social Work from Temple University serving patients with a wide range of behavioral health needs. Throughout her training, she gained extensive experience in evidence based treatment across many levels of care including outpatient, intensive outpatient/partial hospitalization (IOP/PHP), and residential treatment programs. She further developed a specialization in Cognitive Behavioral Therapy (CBT) and exposure and response prevention (ERP) for anxiety, obsessive compulsive disorder (OCD) and related concerns. Ms Melton also has experience and training in the provision of Acceptance and Commitment Therapy (ACT) and Dialectical Behavior Therapy (DBT) for a wide range of presenting concerns in both individual and group treatment settings.
Ms. Melton is a member of the Anxiety and Depression Association of America (ADAA) and National Association of Social Workers. She has also served as a panelist, presenter and support group facilitator for community events and professional conferences.
While Ms. Melton hails from Pennsylvania, she was excited to transition to the Midwest. She is a lover of all things creative from crocheting and jewelry making to expressing herself through writing. She also enjoys training for and running marathons with her husband.