Health professionals for Obesity

Konstantoulaki Eleni MSc, MA is a licensed Psychologist - Systemic Psychotherapist specialized in the Systemic - Existential approach, with experience in the treatment of adolescents, young adults, adults, couples (EFT | Emotionally Focused Therapy) and families. She provides psychotherapy both individually and in group settings, with sessions available online. Her goal is to create a safe therapeutic environment where each individual or group can feel acceptance and trust, having the space to explore thoughts, feelings, and relationships, progressing with awareness towards a more conscious, meaningful, and authentic life.

Dr. Xatzinaki Kalliopi, MD, MSc, is a Specialist in General - Family Medicine and maintains her private practice within the "Mesogeios-Diagnostic Centers," located at Chryssostomou 74 and Knosou Avenue 69 in Heraklion, Crete. She graduated from the Medical School of the University of Patras and completed her specialization in General - Family Medicine at Venizeleio - Pananio Regional Hospital of Heraklion. She holds a postgraduate diploma specializing in "Vaccinations and Infection Prevention" and has extensive clinical experience in managing emergency and chronic cases. In her private practice, she provides high-level medical services, focusing on prevention, early diagnosis, and treatment of primary healthcare conditions affecting the entire family: management of infections, injuries, surgical and pathological cases, prevention and management of Diabetes Mellitus, Arterial Hypertension, Dyslipidemia, Osteoporosis, Obesity, Asthma, Chronic Obstructive Pulmonary Disease, Depression, Anxiety Disorder, and other chronic diseases, smoking cessation, issuance of medical certificates and attestations, and a holistic approach to the geriatric patient. Additionally, she conducts home visits when deemed necessary. Finally, she actively participates in scientific conferences and educational programs, aiming at her continuous professional development and provision of optimal care to her patients.

Makrogianni Vitalioti Mariantzela is a Psychologist - Psychotherapist specializing in Cognitive Behavioral Therapy (CBT) as well as in Biothymia Clinical Hypnosis. She maintains a private practice in Peristeri. She is certified by the Center for Applied Psychotherapy and Counseling. She is the Director of the Damala Foundation, a contributing writer, and has worked at KETHEA in action and street work, gaining extensive experience in Anxiety Disorders and addictions. Additionally, she attends numerous seminars on eating disorders, anxiety disorders, and holistic medicine as part of her continuous professional development.

Marianne Najm, MSc, is a dedicated psychologist practicing privately in Athens. She earned her Psychology degree from the University of Paris and holds a Master's degree in Organizational and CyberPsychology. Currently, she is undergoing specialized training in Psychoanalysis. Marianne is deeply committed to her profession, regularly attending seminars and conferences that focus on psychoanalytic approaches. She volunteers her expertise to provide invaluable psychological support services. She has actively contributed to various psychotherapeutic projects in Athens, with a particular emphasis on assisting individuals struggling with addiction and supporting the foreigner population, including children and adults. Her contributions extend beyond clinical work. As one of the esteemed scientific collaborators of Ecole Française de Cyberpsychologie, Marianne actively contributes to research exploring the effects of new technologies on mental health. Her areas of expertise include clinical psychology, neuropsychology, and social psychology. Marianne extends her influence to educational and corporate settings. She frequently conducts workshops, helping schools and businesses navigate the use of New Technologies in the workplace and promoting their responsible recreational use. Originally from France, Marianne Najm has been a resident of Athens since 2006, proficient in Greek, French, and English.

Kritsini Olga is a Dietitian - Nutritionist and maintains a private practice in Chalandri. She is a graduate of the University of Crete and contributes articles to various scientific websites on topics of nutrition and wellness. She has extensive experience in a Dietetic Unit and an Endocrinology Clinic in Athens. Additionally, she has participated in and attended numerous conferences, workshops, and seminars.

Aleksaki Sofia is an Endocrinologist - Diabetologist and a PhD candidate at École des Ponts ParisTech in France, with a private practice in Agia Paraskevi. She specialized in Endocrinology, Diabetes Mellitus, and Metabolism at Venizeleio General Hospital of Heraklion, where she further specialized in Diabetology. She also has many years of clinical and research experience in Greece, the United Kingdom, France, and Belgium.

Andreas Thomopoulos is an Endocrinologist - Diabetologist with a private practice in Marousi. He holds a degree from the Faculty of Medicine and Surgery at the University of Naples, Italy, and specialized in Internal Medicine at the General Hospital of Attica "Amalia Fleming," in Endocrinology at the Endocrinology Department of the General Hospital "Elena Venizelou," and in Endocrinology and Diabetology at the Endocrinology and Diabetology Department of the Regional General Hospital of Athens "G. Gennimatas." Additionally, he specialized in ultrasound imaging of endocrine glands at the Radiology Department of the Specialized Anti-Cancer Hospital of Piraeus "Metaxas." He is the head of the Endocrinology Department at the Bioclinic of Athens and has served as the head of the Endocrinology - Diabetology Department at IKA Marousi. He regularly attends numerous postgraduate seminars and conferences as part of his continuous education and has published papers in both Greek and international scientific journals. He is a member of European and Greek associations, as well as scientific societies.

Kalatzopoulou Garyfalia Liana MD, MSc is a Specialist in Internal Medicine and maintains a private practice in Neo Psychiko. She is a graduate of the Athens College and holds a medical degree from the Medical School of the National and Kapodistrian University of Athens. She completed a postgraduate program in Immunology and Infectious Diseases at the University of Birmingham in the United Kingdom, specialized in Internal Medicine at the General Hospital of Athens "G. Gennimatas," and has extensive experience in the management of obesity, having handled hundreds of cases to date. Dr. Kalatzopoulou is an external associate of Metropolitan General Hospital and serves as the attending Internist at the Outpatient Clinics of the same hospital.

Florou Athina is a Dietitian - Nutritionist and maintains a private practice in the Zografou area. She graduated from the Department of Dietetics and Nutrition Science at Harokopio University of Athens in 2022, successfully completing her undergraduate studies. During her internship at the 251 General Airforce Hospital, she gained valuable knowledge and experience in nutrition support, designing personalized diet plans, nutritional counseling, and assessing patients' nutritional status. She continued her studies at University College London (UCL), where she obtained a master's degree in Eating Disorders and Clinical Nutrition with distinction. As part of her postgraduate education, she worked at St Ann’s Hospital/Eating Disorder Service, making a significant contribution to the rehabilitation of patients with eating disorders. Athina is a member of the Panhellenic Association of Dietitians-Nutritionists (PSDΔD), the European Society for Clinical Nutrition and Metabolism (ESPEN), and the Association for Nutrition (AfN) in the UK. She has experience in managing clinical cases through collaboration with physicians of various specialties in both hospital and private settings. She applies individualized nutritional interventions based on scientific evidence, aiming for the holistic support of health.

As part of her active involvement in international scientific networks, she participates as a member of the Working Group of the European project HEALTH UP! of EFAD (European Federation of the Associations of Dietitians), contributing to the scientifically substantiated evaluation and updating of the Guide on Eating Disorders, aiming to enhance dietetic care practice at the European level.

Ioannis Litsas is an Endocrinologist - Diabetologist who maintains a private practice in Evosmos, Thessaloniki. He is a graduate of the Medical School of the National and Kapodistrian University of Athens and specializes in diabetes mellitus, thyroid disorders, menstrual irregularities, osteoporosis, obesity and metabolism, and gynecological endocrinology. Additionally, Dr. Litsas is a scientific collaborator of the Pregnancy Endocrinology Unit of the 1st Obstetrics - Gynecology Clinic of Aristotle University at the General Hospital of Thessaloniki "Papageorgiou." In his private practice, he provides services across the full spectrum of endocrinology tailored to the specific needs of his patients. Finally, Dr. Litsas is a member of the Hellenic Endocrinological Society.

Pagourtzi Euanthia MSc is a Dietitian - Nutritionist and the scientific director of the licensed dietetic office "Nutritional Intelligence" in the Aigaleo area since 2011. She graduated from Harokopio University in 2010, where she continued her studies by completing the postgraduate program "Applied Dietetics and Nutrition" with a specialization in "Nutrition and Exercise," in which she was awarded twice for academic excellence. Additionally, she holds a diploma from the educational program "Evidence-Based Medical Nutrition" of AUTH. She has specialized in eating disorders and adult obesity through KEADD and has completed the training cycle "Lifestyle and Cardiovascular Disease" within the framework of the ELIDEK project. In her private practice, she manages a wide range of cases including obesity, overweight, cardiovascular diseases, dyslipidemias (high cholesterol, hypertriglyceridemia), hypertension, type 2 diabetes mellitus, insulin resistance (hyperinsulinemia), polycystic ovaries, gastrointestinal problems, anemia, autoimmune diseases, thyroid disorders, women and men of reproductive age, pregnant women, breastfeeding mothers, menopausal women, as well as cases involving exercisers, recreational athletes, and professional athletes. During her studies, she participated in various research projects and completed her internship in several hospitals of Attica, where she dealt with numerous clinical cases. In the past, she has worked as an instructor in public Vocational Training Institutes (IEK) and concurrently collaborates with sports teams and fitness centers. She is a member of the Sports Nutrition Working Group of the Panhellenic Association of Dietitians - Nutritionists. Over the years, she has delivered presentations at scientific conferences on topics related to preventive medicine, nutrition, and exercise.

Dr. Margaritopoulos Dimitrios is an Endocrinologist - Diabetologist and maintains a private practice in Petralona. He graduated from the Medical School of Aristotle University of Thessaloniki and completed postgraduate studies in Applied Dietetics - Nutrition at Harokopio University of Athens. Additionally, he is a PhD candidate at the National and Kapodistrian University of Athens and has received training in Gestational Diabetes at the General Hospital of Athens "Alexandra". He possesses significant clinical experience having worked as an Endocrinologist - Diabetologist at the General Hospital of Athens "Evangelismos", at the 2nd University Internal Medicine Clinic of the General Hospital of Athens "Hippocration", as well as at the Centre Hospitalier du Centre du Valais in Switzerland. Finally, the physician specializes in diabetes mellitus, thyroid and parathyroid glands, and osteoporosis.

Dr. Kouveletsou Marina, MD, MSc, PhDc, is a Military Physician, Specialist in Internal Medicine – Diabetology, and maintains a private practice in Kallithea, while also serving as a Consultant at the 251 Air Force General Hospital. She is a PhD candidate at the Medical School of the National and Kapodistrian University of Athens and holds a Medical Degree from the Aristotle University of Thessaloniki Medical School and the Military School of Corps Officers (SSAS).

She specialized in Internal Medicine at the 1st University Teaching Internal Medicine Clinic of the General Hospital of Athens “Laiko” and at the 251 Air Force General Hospital. She holds a Master’s Degree (MSc) in “Diabetes Mellitus and Obesity” from the Medical School of the University of Athens with distinction (“Excellent”) and is specialized in diabetes mellitus and its complications at the Diabetology Center of the General Hospital of Athens “Laiko.”

She has completed certified training in Emergency Management (Advanced Life Support – ALS Provider) from the European Resuscitation Council, as well as emergency medicine training programs (Advanced Trauma Life Support – ATLS, Prehospital Trauma Life Support – PHTLS, Basic Life Support – BLS).

In her clinic, she manages cases of diabetes mellitus, obesity, arterial hypertension, elevated cholesterol, lipid disorders, metabolic syndrome, prediabetes, as well as general internal medicine conditions, approaching each patient individually with emphasis on prevention and early diagnosis.

She is a member of the Athens Medical Association, the Hellenic Society of Internal Medicine, the Hellenic Diabetes Association, as well as the Hellenic and European Atherosclerosis Societies. She has an extensive research background with published papers in international medical journals and presentations at Greek and international scientific conferences.

Marilena Nikolidaki RD BSc cMSc is a Dietitian - Nutritionist and maintains a private practice in Rethymno. She is a graduate of the Department of Nutrition and Dietetics of the School of Health Sciences at the Hellenic Mediterranean University, and she is also pursuing a postgraduate program in "Nutrition & Public Health" at the Medical School of Aristotle University of Thessaloniki. She has attended numerous educational programs and seminars, acquiring further knowledge in clinical nutrition, sports nutrition, diabetes mellitus and obesity, endocrinological issues in children and adolescents related to weight management. Additionally, she has completed practical training seminars at the Nutrition Department of the General Hospital of Athens "Evangelismos." Concurrently, the Nutritionist is an active member of the Panhellenic Association of Dietitians - Nutritionists, as well as the Hellenic Society of Clinical Nutrition and Metabolism (GrEspen). Since 2024, she has maintained her private dietetic office at 30 Emmanouil Portaliou Street in the center of Rethymno.

Panagiotou Maria - Anna is a Psychologist (BSc) and Psychotherapist specializing in Cognitive-Behavioral Psychotherapy. She graduated from the National and Kapodistrian University of Athens and holds a professional practice license valid nationwide (License No: 1401991). She has worked as a Psychologist at the Elderly Care Unit "Rodi" in Filothei, as well as an external collaborator in a Medical Clinic and an English tutoring center to support employees and students. Additionally, she has volunteered in various settings, including public elderly care units and telephone support platforms. She has been trained in the Behavioral-Cognitive approach (higher education) at KEPSYSY in areas such as anxiety, phobias, panic attacks, psychosomatic disorders, depression, traumatic experiences, relationship issues, and has specialized in the non-pharmacological management of geriatric issues and caregivers, including dementia, grief, and anxiety at the National and Kapodistrian University of Athens. She works with both adults and adolescents on family matters, crisis management, school performance, and violence-related issues. Her approach is based, among others, on the Rational Emotive Behavior Therapy model by Ellis, Beck's Cognitive Therapy model, as well as Meichenbaum's Cognitive-Behavioral Modification. Finally, the specialist is a member of the Hellenic Psychological Society (SEPS). Guided by empathy, authenticity, and scientific practices, individuals will progressively be able to manage life situations effectively. For optimal service provision, she is supervised and participates in personal psychotherapy.

Memi Eleni MD, MSc, PhD is an Endocrinologist who maintains a private practice in Nea Smyrni. She also serves as a Scientific Collaborator at the Palaiou Faliro Clinic of the Athens Medical Center and as an Academic Fellow in the 2nd Obstetrics and Gynecology Clinic of the "Aretaieio" Hospital. She holds a Doctorate in Medicine from Aristotle University of Thessaloniki, where she also earned her medical degree and a postgraduate specialization in "Medical Research Technology." She specialized in Endocrinology and worked as a resident physician in the Metabolic and Endocrine Diseases Department at the University Hospital "Carémeau" in France, as well as in the Bone Diseases Department at the University Hospital of Geneva, Switzerland. Furthermore, she received training in the Endocrinology, Diabetes, and Metabolism Department at the University Hospital of Lausanne, Switzerland, and completed her endocrinology training at the Endocrinology Department - Diabetology Center of the General Hospital of Athens "Evangelismos." Finally, she has attended numerous conferences and postgraduate seminars in Greece and abroad and has contributed to multiple research projects that were presented at Greek and international conferences and published in scientific journals.