The Gestalt Institute of Cleveland

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Gestalt Institute of Cleveland Board

Mark Cheren, EdD

has worked in the field of continuing medical education (continuing professional education in healthcare) for the past seventeen years, including six as Director of Continuing Medical Education at the Case Western Reserve University School of Medicine. He currently serves as president of Improvement Learning, LLC, where his work supports the improvement efforts of healthcare professionals. Mark is Editor in Chief for the web-based Healthcare Improvement Skills Center (HISC) (, and has faculty appointments at the Case Western Reserve University School of Medicine, and the Institute for Healthcare Improvement (IHI). Over the years he has also been active in the fields of higher education administration, organizational development and performance improvement. Other roles have included Administrative Coordinator (CEO), Campus-Free College, and Assistant Director, National Office of Personnel Training and Development, American Red Cross. Publications include: Learning Management, Emerging Directions for Learning to Learn in the Workplace. for the National Clearinghouse for Adult, Career and Vocational Education at the Ohio State University; A Manual for Program Advisors. for Campus Free College; and The Self-Directed Educator. for the Council for Adult and Experiential Learning.

Edward A. Erbach, AIA

Principal and co founder of Erbach Waddell Architects, has over 40 years experience in the field of architecture and interior design. A registered architect since 1979, he was a founding Principal and Architect-in-charge of The Arris Group, an interior architectural firm founded in 1989. With a staff at times of over 20 people, Ed was responsible for the management and design of over 3 million square feet of corporate office space. In 2000 he merged the Arris Group with Weber Murphy Fox out of Erie Pennsylvania, and for 4 years was a Prinicipal / Owner in charge of their Corporate Design Studio. In 2004 Ed left WMF to start his own firm again which thrived for over 10 years until 2015 when he connected with John Waddell AIA to form Erbach Waddell Architects. With Ed's passion and focus on interior environments and John's diverse talents in all aspects of architecture EWA provides a winning combination!

Amy Eugene, MSOD

has over ten years experience working with and in organizations supporting team effectiveness, strategic planning, cultural competency, and knowledge sharing capacities. Amy's interests and practices are in spirituality, nature, parenting, embodiment, energy and holistic perspectives. Amy is co-author of Knowledge Management in Practice.

Paul T. Hamerly

is a marketer, certified coach, entrepreneur, and father. He completed the Gestalt Coach Program in June, 2014. Paul started Novus Energy LLC in August 2014, a company dedicated to capitalizing on a high efficiency, low emission internal combustion technology. He served in marketing and strategic planning positions with Heinz, Nestle and Beecham Products. Paul started Kitchen Basics Inc. in his basement, the first ever commercial cooking stock company sold on supermarket shelves. The company was sold to McCormick, the spice company in Hunt Valley Maryland in 2011. He holds an MBA, and BA in Management Science and Math from Carnegie Mellon University. Paul played professional basketball in his Mother's native country of Belgium. Paul has three children, Katie, Andrew and Sarah. He looks forward to assisting Gestalt define and fulfill its mission.

C. Wesley Jackson, Jr., PhD, ABPP

is a clinical psychologist in private practice and specializes in working with couples and individual adults. He has a special interest in measuring the positive behavioral changes resulting from couples therapy, and has developed a method for assessing these changes. He offers retirement issue workshops for those in pre-retirement, retirement, and of an age to retire but still working. Wes served as the Chair of GIC's Couple and Family and Small Systems Training Program for 25 years, and served as a member of GIC's Board of Governors, also for 25 years. He was a Professor of Psychology in the School of Nursing, Case Western Reserve University for 10 years. He is Faculty Emeritus at GIC. Wes is a Diplomate in Clinical Psychology from the American Board of Clinical Psychology (ABPP), is a Certified Health Service Provider, Council for the National Register of Health Service Providers in Psychology, and is a Fellow in the Academy of Clinical Psychology.

David M. Liebenthal, PhD, JD

Dr. Liebenthal graduated from Western Reserve University with a B.B.A. in 1962, followed by graduation from The University of Chicago Law School in 1965. After working as a tax attorney for 9 years, first with a large Cleveland law firm, then at the U.S. Treasury Department, and then a large corporation, he realized that his interests were taking him in a different direction. He returned to school at Cleveland State University, picking up sufficient undergraduate Psychology classes to enter the graduate program, graduating with his M.A. degree in Community/Clinical Psychology from Cleveland State in 1976, and his Ph.D. in Clinical Psychology from Northwestern University in 1980. After working a few years for the Hines VAMC near Chicago, he returned to his home in Cleveland, and joined the Cleveland VAMC as Director of Group Therapies for the National Center for PTSD at Brecksville, known as the Center for Stress Recovery. In 1990 he established a program at Brecksville for patients with co-occurring disorders (psychiatric and substance use) in the Veterans Addiction Recovery Center (VARC). After a number of years, Dr. Liebenthal became a Program Manager in VARC, supervising a number of VARC's programs, both at Brecksville and at Wade Park. During that time, in 2000, Dr. Liebenthal and Dr. Christina Delos Reyes developed the first Group Therapy didactic, and the first Resident process group, for Psychiatry Residents at University Hospitals Case Medical Center. He continues with these activities as an Assistant Professor at the Medical School of Case Western Reserve University. In 2007 Dr. Liebenthal retired from the Cleveland VAMC and in 2008 joined the Department of Psychiatry of University Hospitals Case Medical Center, where he currently provides psychotherapeutic services (individual and group) to patients. He also maintains a private practice that he began in 1985.

Alex S Tomoff, CPA, LPC

Has wide range of experience over 30 years in financial accounting. His career includes "Big 4" public accounting and senior-level finance positions in private industry. He is a licensed professional counselor and also a graduate of the Gestalt Training Program, Gestalt Institute of Cleveland. Alex has a private practice in Rocky River, Ohio specializing in nonprofit organizations and taxation.