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Mental Health Services Providers

Elizabeth Kastelic, MD

Assistant Professor of Psychiatry and Behavioral Sciences

Everett Siegel, MD

Assistant Professor of Psychiatry

Everett Siegel is a staff psychiatrist at UHS.  Dr. Siegel earned his undergraduate degree at UC Berkeley, and his MD from Thomas Jefferson University, and his psychiatry residency at Johns Hopkins.  He also is a psychoanalyst, having received his training at the Baltimore Washington Center for Psychoanalysis.  He also is trained in ISTDP (intensive short-term dynamic therapy).  Prior to his current position, Dr. Siegel was an assistant professor in the department of psychiatry, and Dr. Siegel has worked at University Health since 1991.  His interests include psychopharmacology and psychodynamic psychotherapy, the problematic use of labels in mental health and methods for improving expertise in psychotherapy.

Paul Rivkin, MD

Assistant Professor of Psychiatry and Behavioral Sciences

Kathy Koski, LCSW-C

Licensed Clinical Social Worker

Kathy Koski, LCSW-C, is a graduate of The Johns Hopkins University.  She completed her graduate training at the Columbia University School of Social Work.  In clinical practice for over 20 years, Kathy has worked with children, adolescents, and adults.  She utilizes a number of trauma informed treatment approaches, including the following: Acceptance and Commitment Therapy, Cognitive Behavioral Therapy, Dialectical Behavior Therapy, Mindfulness Based Stress Reduction, and supportive therapy.  

Beth Surbeck, PhD

Licensed Psychologist

Dr. Surbeck is a Licensed Psychologist who joined the staff of UMH in 2012. She has served most of her career on the staff of various university counseling centers, including Bucknell University, Lehigh University, The Pennsylvania State University and Loyola University Maryland. While Dr. Surbeck treats a wide range of concerns, she specializes in treating anxiety disorders, particularly OCD. It is her privilege and joy to work with students. Dr. Surbeck earned her B.S in psychology at Juniata College and her M.S. in General/Experimental Psychology at Bucknell University. She received her Ph.D. in Counseling Psychology from The Pennsylvania State University. She is a member of the American Psychological Association, the Anxiety and Depression Association of America, the International OCD Foundation and the Association for Behavioral and Cognitive Therapies.

Roger Messick, LCSW-C

Licensed Clinical Social Worker

Michal Tsemach, LCSW-C

Licensed Clinical Social Worker