About Us

We established ISIS - the Interdisciplinary Center for Weight Management, Nutrition and Wellness with a dedicated, experienced and professional staff. We all do our job with a sincere desire to be there for you, listen, offer consulting services, support you, and help you make a change in your lives and proceed in a new direction. It is our belief that caring, listening and dedication are the most vital tools we possess. We have all undergone extensive professional training in addition to formal academic training, and we also possess expertise in treating adults, as well as children, adolescents and young people. All these skills, along with our vast and longtime professional experience, allow us to provide you with the best treatment, accompaniment and consulting services.

Dr. Sharon Iron-Segev
ISIS Center Director

Dr. Sharon Iron-Segev is a certified clinical dietician and Doctor of Public Health, with vast experience in treating children, adolescents and young people suffering from obesity and eating disorders. She is the director and founder of ISIS - the Interdisciplinary Center for Weight Management, Nutrition and Wellness - a center for the treatment and prevention of obesity and eating disorders.

Dr. Iron-Segev boasts over 15 years of extensive professional experience as a clinical dietician, of which she served for over a decade as the Head Dietician of the Lily Safra Children's Hospital at Sheba Medical Center, Tel Hashomer. She was one of the founders of Israel's first ward for the admittance and treatment of children and adolescents suffering from eating disorders and morbid obesity (Sheba Hospital, Tel Hashomer).

Dr. Sharon Iron-Segev obtained her Sc.D. from the Harvard School of Public Health, Boston, United States.

Dr. Shai Posmanik Consultant and Moderator at ISIS Clinical Psychologist
Dr. Shai Posmanik is a clinical psychologist specializing in the treatment of eating disorders among children, adolescents and adults. Shai boasts extensive professional experience as a clinical psychologist in mental health inpatient settings, in the pediatric departments of Geha Mental Health Center and Sheba Medical Center, as well as in public clinics, including the Wellness Center in Ramat Chen, the Child and Adolescent Psychiatry Unit outpatient clinic at Sheba Medical Center, Tel Hashomer, the Adolescent Inpatient Department for the treatment of eating disorders at Sheba Medical Center, Tel Hashomer, and Agam Institute – an institute for the treatment of eating disorders of Reut Hospital. Shai holds a Ph.D. in Clinical Psychology from the University of Tel Aviv.
Yael Birman Head of Nutrition at ISIS Clinical Dietician
Yael Birman is a clinical dietician, and an expert in the treatment of eating disorders among children and adolescents. She leads programs which promote health and nutrition at schools, with the aim of raising awareness among parents, teaching staff and the youth themselves, of the importance of a healthy diet, and a healthy lifestyle during adolescence. Her professional experience includes work as a clinical dietician at public and private medical centers, at the Agam Institute - a rehabilitation center for treating eating disorders, and at Clalit healthcare services as a clinical dietician specializing in treating children, adolescents, adults and elderly people who suffer from eating disorders. She holds a B.Sc. from the School of Nutritional Sciences at the Hebrew University of
Omer Manor Certified fitness trainer
Omer Manor is a seasoned personal fitness trainer. His professional experience encompasses work as a coach in leading gyms, and instructing unique groups including weight loss fitness groups, women groups, senior citizens groups, children and adolescent groups and personal trainer. Additionally, Omer has served as a fitness instructor for individuals who require a custom tailored training program, including osteoporosis patient, herniated disc patients, pregnant women and people suffering from extreme obesity. He is a graduate of a gym instructor course at the School for Coaches and Instructors, Wingate Institute and a BA in media studies from The Open University of Israel.
Merav Baranes Certified fitness trainer
Merav Baranes is a seasoned personal fitness trainer. Her professional experience encompasses work as a coach in leading gyms, and instructing unique groups including weight loss fitness groups, senior citizens groups, children and adolescent groups and more. Additionally, Merav has served as a fitness instructor for individuals who require a custom tailored training program, including osteoporosis patient, herniated disc patients, pregnant women and people suffering from extreme obesity. She is a graduate of a gym instructor course at the Seminar Hakibbutzim College and a senior gym instructor course at the School for Coaches and Instructors, Siim Campus, Tel Aviv University.
Ran Kleinman Head of Physical Activity at ISIS Certified fitness trainer
Ran Kleinman is a seasoned personal fitness trainer. His professional experience encompasses work as a coach in leading gyms, and instructing unique groups including weight loss fitness groups, groups for diabetics, senior citizens groups, youth groups and more. Additionally, Ran has served as a fitness instructor for individuals and groups who require a custom tailored training program, including osteoporosis patients, CP patients, herniated disc patients, pregnant women and people suffering from extreme obesity. He is a graduate of a gym instructor course and a senior gym instructor course, the School for Coaches and Instructors, Wingate Institute.
Elad Chaupin Clinical Psychology
Elad Chaupin is a clinical psychologist, specializing in the treatment of adolescents suffering from eating disorders and in the treatment of parents and family members of these teens. His professional experience encompasses work as a psychologist at an inpatient department for the treatment of eating disorders among adolescents, at Sheba Medical Center, Tel Hashomer, and at the Adult Clinic at the Mental Health Center in Jaffa, and as a consultant for counseling centers for youth of Elem Society – a support organization for youth at risk and in distress in Israel. Elad graduated with a B.A. cum laude in Behavioral Sciences from Ben-Gurion University, and an M.A. cum laude in Clinical Psychology from Tel Aviv University. He is a graduate of the group leader course under the auspices of the School of Social Work, Tel Aviv University.
Ran Perlman Clinical Psychologist
Ran Perlman is a clinical psychologist and an expert in treating children, adolescents and special needs populations. In his work, Ran employs advanced and diverse tools, including dynamic psychotherapy, private psychotherapy, group psychotherapy and psycho-diagnostics. His professional experience encompasses treatment at a private clinic, treating children, adolescents and adults coping with sexual abuse, as well as work as a psychologist in rehabilitation settings of schools, boarding schools, hostels and in other settings. Ran serves as the leader of an interpersonal relations group for NATAL trauma center for victims of war and terror, in addition to other posts. Ran holds a B.A. in psychology and education and an M.A. in Clinical-Educational Psychology from the University of Haifa. He is a graduate of the continuing education studies program for group leaders and the group psychotherapy program of Tel Aviv University. Ran instructs teachers in the psychotherapy track at Ridman College.
Yael Nitzan-Carmel Clinical Psychologist
Yael Nitzan-Carmel is a clinical psychologist specializing in psychotherapy for adults suffering from eating disorders. Yael possesses vast experience in the treatment, diagnosis, and rehabilitation of special needs populations. She leads therapy groups and is certified to perform psychotherapy and psycho-diagnostic examinations among children, adolescents, and adults. Her professional activity also encompassed a position as a psychotherapist in a private clinic and at Agam Institute – a rehabilitation institution for the treatment of eating disorders. Yael holds a B.A. from the Department of Psychology and Sociology, Tel Aviv University and an M.A. from the Department of Clinical Psychology, Tel Aviv University. Graduate of continuing studies at the School of Psychotherapy of Tel Aviv University.
Shiri Mendelovitz Clinical Dietician
Shiri Mendelovitz is a clinical dietician, specializing in the treatment of eating disorders among children and youth. Her professional experience includes work as a clinical dietician at the Department for Eating Disorders for Children and Youth at the Sheba Medical Center Tel Hashomer (since 2004), work as a clinical dietician leading therapeutic groups for children who suffer from obesity at the Endocrine Clinic at Sheba Medical Center Tel Hashomer, and she was also involved in the set up and supervision of the “Wise Nutrition” workshop for children at risk and their parents, under the auspices of the Municipality of Givatayim. In the past Shiri conducted research in diabetes at the Endocrine Institute at Rambam Hospital in Haifa. She holds a B.Sc. cum laude from the School of Nutritional Sciences of the Hebrew University of Jerusalem and obtained her M.Sc. cum laude from the Dept. of Biochemistry and Human Nutrition, Faculty of Agriculture, the Hebrew University of Jerusalem.
Efrat Zuk Clinical Dietician
Efrat Zuk is a clinical dietician, boasting over 15 years of experience. She specializes in treating obesity and diseases that are influenced by severe obesity, including diabetes, high blood pressure, digestive system disorders, respiratory diseases and other disorders. She is also an expert on combining behavioral change and medical treatment among those who suffer from obesity and eating disorders. Efrat's professional experience also encompasses work as a clinical dietician at Agam Institute - a rehabilitation institute for the treatment of eating disorders, and she has served as a clinical dietician at the Children's Health Center Ramat Aviv Gimmel - Clalit Healthcare Services, and other institutions. Efrat holds a B.Sc. cum laude from the School of Nutritional Sciences of the Hebrew University, Jerusalem, and obtained her M.Sc. from the Department of Pharmacology and Physiology, under the auspices of the Faculty of Medicine at Tel Aviv University.