Our Team
Dr. Georgios Vissarakis, ΜDT. Kalloniatis, MDProf. S. Nanas, ΜDAthanasia Liozidou, BPsych, MPsych, MPHsEfthymia VagenaIlias Chrysovalantis

Dr. Georgios Vissarakis

Dr. G. Vissarakis, ΜD
Doctor in Physical Medicine & Rehabilitation
Medical Director


Fifteen years of experience in Physical Medicine & Rehabilitation, working in leading position as Medical Director in the biggest and most specialized centers in Greece. A broad spectrum of experience in the field of Medical Rehabilitation from Sports & Exercise medicine, Champions League level football team, to Spinal cord injuries and neurological degenerative conditions. Highly motivated, confident individual with exceptional multi-tasking and organizational skills. Able to communicate effectively and sensitively with patients and relatives. Able to maximize the rehabilitation of patients and to ensure understanding of often complex clinical issues impacting recovery. Excellent client facing skills coupled with the ability to work closely with other health care professionals to assess patients’ needs and devise suitable treatment plans for them.

Able to successfully lead a multidisciplinary team of rehabilitation professionals under quality management systems and high impact recovery protocols.

Ready and qualified for the next stage in a successful career and looking forward to making a significant contribution as a leading clinician in a multidisciplinary environment.


  • Musculoskeletal Rehabilitation, Orthopedics, Stroke management, Spinal Cord Injuries,
  • Sports Medicine
  • Neurodegenerative conditions, Multiple Sclerosis,
  • EMG (electromyography), NCS (nerve conduction studies)
  • Peripheral joint injections, Trigger point injections,
  • Interventional spinal therapeutics
  • Musculoskeletal Ultrasound, Botulinum Toxin and Spasticity clinic, Regenerative therapies (PRP, Stem cells), electromyography, pain management, ozone therapy
  • Multidisciplinary team organisation, Quality Management Systems planning and monitoring.


2003 Greek Board Certification
Specialist in Physical Medicine & Rehabilitation Full registration

2002 Master of Science in Sports and Exercise Medicine University Of London, University College London (UCL) Dynamic Electromyography of the Deltoideus Muscle

1994 Degree in Medicine & Surgery Dimocritus University, Thrace, Greece


Feb.02-May.03 Research Registrar in Spinal Injuries (15 Months) National Spinal Injuries Centre
Stoke Mandeville Hospital

Feb.01-Feb.02 Senior House Officer in Spinal Injuries (1 year) National Spinal Injuries Centre
Stoke Mandeville Hospital

Aug.00-Feb.01 Senior House Officer in Rehabilitation Medicine
(6 months) The Royal National Orthopaedic Hospital NHS Trust Rehabilitation Department

Aug.99-Aug.00 Senior House Officer in Rehabilitation Medicine
(1 year) Defence Services Medical Rehabilitation Centre (D.S.M.R.C.) Headley Court, Epsom Surrey

Feb.99-Aug.99 Senior House Officer in Rehabilitation Medicine (6 months) Southern General Hospital NHS Trust
Physically Disabled Rehabilitation Unit (P.D.R.U.)

Aug.98-Feb.99 Rotating Trainee in Orthopaedics
(6 months) “A. Fleming” District General Hospital
Department of Orthopaedics

Nov.97-Jul.98 Rotating Trainee in Neurology
(8 months) “K.A.T.” General and Accident Hospital
Department of Neurology

Feb.97-Oct.97 Rotating Trainee in Internal Medicine
(8 months) “Sotiria” General and Chest Diseases Hospital
Department of Respiratory and Critical Care Unit


Oct.95-Feb.97 Trainee in Accident and Emergency Medicine (16 months) Health Centre “Astros Kynouria”
Department of Accident & Emergency

Apr. 94-Oct. 95 Trainee in General Medicine
(18 months) Military Hospital, Rhode Island, Greece
National Service – Infantry Medical District

Apr. 93-Apr. 94 Medical Practice - HO equivalent
(12 months) University of Thrace Hospital. Rotating through:
Internal Medicine (3 months), General Surgery (3 months) Pediatrics (3 months), Orthopaedics (1.5 months) Obstetrics & Gynaecology (1.5 months)


Research Registrar in Spinal Injuries at the N.S.I.C. Stoke Mandeville Hospital. After completing my rotation as full time resident in the Stoke Mandeville National Spinal Injury Centre, I continued working as a clinical research registrar. My research focused on the effects of cannabinoids on spasticity in spinal cord injury patients. During the same period and under the supervision of Dr. Brian Andrews, I explored the effects of Functional Electrical stimulation – FES assisted rowing training on the lipid profile in patients with spinal cord injuries.

S.H.O. in Spinal Injuries at the N.S.I.C. Stoke Mandeville Hospital. Stoke Mandeville National Spinal Injury Centre is world-wide recognized for the high quality and innovative approach of spinal injuries. Part of my duties was the examination and initial treatment of patients with chronic or acute spinal cord injuries, attendance of the urodynamics sessions and operating theatre when required and assisting in the check-up and treatment plan of outpatients. There was also a strong emphasis in clinical education and research.

S.H.O. in Rehabilitation Medicine at the R.N.O.H. Trust. This post offered me experience in a wide range of soft tissue rheumatological, orthopaedic disorders, and obscure disabling disorders. There was a 16-care bed facility for intensive inpatient rehabilitation. Special interest of the Unit was back pain, particularly the problematic cases, chronic knee pain and peripheral nerve disorders, including causalgia, pain after avulsion injuries to the brachial plexus and Sudeck’s dystrophy as well as complex orthopaedic and neurological conditions.

S.H.O. in Rehabilitation Medicine at the RAF Rehabilitation Centre. The largest rehabilitation unit in the U.K., with 170 beds, specializing in musculoskeletal rehabilitation. There was also an active 20-bedded Neuro-Rehabilitation unit, which has an international reputation for its highly structured and innovative approach to traumatic brain injury. As part of my duties I was also attending the Rheumatology Outpatient Clinic both at the Centre as well at the Guys & St. Thomas’s Hospital.

S.H.O. in Rehabilitation Medicine at the Southern General Hospital. The Physically Disabled Rehabilitation Unit was a 30 bedded unit, providing short-term intensive assessment and rehabilitation for adults with neurological illnesses, injuries and disorders. When on call, I was covering admissions at the Queen Elizabeth National Spinal Injury Unit.

Rotation through Orthopaedics at “A. FLEMING” Hospital. The Orthopaedics Department was a 20-bed unit, providing comprehensive service in both acute and selective orthopaedic cases. I attended in theatre sessions twice a week as 1st or 2nd assistant in a wide variety of cases including total hip & knee replacement, and unassisted in numerous smaller operations.

Rotation through Neurology at “KAT” Hospital. The Neurology Department is a 20-bed unit covering all Neurological admissions for southern Greece. I was responsible for the day-to-day care of patients on the wards and also worked in coοperation with the Neurosurgical team managing patients in the Stroke Unit.

Rotation through Internal Medicine at “Sotiria” Teaching Hospital. The Department consists of a 40-bed unit with an Intensive Care Unit of 10 beds and a Respiratory Rehabilitation Department. During my rotation I was responsible for the day-to-day care of the inpatients presenting Respiratory and Intensive Care cases. I regularly presented cases in the monthly medical audit meetings.

General Training in Accident & Emergency at Health Centre “Astros”. This Centre is situated in a suburban area and provides full Accident and Emergency, Medical, Surgical and Orthopaedic care in adults and children. The duties of the post included primary and inpatient care within the Hospital and also provided primary care at incident sites.


2015 9th World Congress of the International Society of Physical and Rehabilitation Medicine International Society of Physical and Rehabilitation Medicine
Berlin, Germany

2015: 4th International Conference and Exhibition on Cell & Gene Therapy Chairing at Preconference Workshop
Athens, Greece

2014: XXII International Conference on Sports Rehabilitation & Traumatology Football Medicine Strategies,
Milan, Italy

2014: PRP & Regenerative Medicine Symposium TOBI Orthobiologic Institutes
Las Vegas, Nevada

2014: Masterclass in the Anatomy of Ultrasound Guided Intramuscular Injecting Royal Liverpool Hospital
Liverpool, United Kingdom

2014: IV Word Congress on Oxygen Ozone Therapy Scientific Oxygen Ozone Therapy Association
Roma, Italy

2013: Workshop in High Intensity Laser Therapy ASALaser
Florence, Italy

2012: Health Management, Interdisciplinary Team Chartered Society of Physiotherapy
London, Great Britain

2011: 6th Word Congress of the International Society of Physical & Rehabilitation Medicine International Society of Physical & Rehabilitation Medicine
San Juan, Puerto Rico

2011: Conservative Spinal Decompression Therapies SpineMed Therapy Association
Baltimore, USA

2010: Core Stability, Swiss Ball Exercise Protocols The Theraband Academy
London, United Kingdom


T. Kalloniatis, MD

T. Kalloniatis, MD

Dr. Theodoros Kalloniatis is a specialized Internist.

He completed his specialization at the 1st Clinic of General Hospital "EVANGELISMOS" with responsibilities in the Regular External Pathology Clinic, the Special Infectious Diseases Unit, the Intensive Care Unit, the 2nd Cardiology Clinic and Heart Attack Unit and the Department of Endocrinology, Diabetes and Metabolism.

He has participated in national and international conferences with oral and poster announcements and papers.

He maintains a private clinic in the suburb of Markopoulo, Attica.

Νανάς Σεραφείμ

Prof. Serafeim Nanas, MD
Internist, Intensivist
Director of High Dependency Unit
Professor at Medical School of National & Kapodestrial University of Athens

Oct 2011 – present Professor (Full)
National and Kapodistrian University of Athens, Division of Intensive Care I
Athens, Greece

Nov 2009 – Nov 2011 Chairman
National and Kapodistrian University of Athens, Division of Intensive Care I
Athens, Greece

Jan 1996 – present Laboratory Head
Evgenidio Hospital, Ergospirometry and Cardiopulmonary Rehabilitation
Athens, Greece

Jan 1984 – Oct 1993 Director in ICU
ALEXANDRA General Hospital, Departement of Clinical Therapeutics
Athens, Greece

Oct 2008 Award: Award clinical research – ESICM - Stoutenbeek Award 2008

Main research and educational interests are:Multidisciplinary Rehabilitation after Intensive Care, Clinical Ergospirometry, Rehabilitation of Post intensive Care Syndrome (PICS) , Cardiopulmonary rehabilitation, heart failure, cardiopulmonary exercise testing and rehabilitation in CHF patients,Pathophysiology of sepsis and microcirculation, NIRS-VOT, infections, sedation in ICU, and polyneuromyopathy of critically ill patients early mobilization and post ICU rehabilitation.


  • Professor
    Medical School of National & Kapodestrial University of Athens
    October 2011 – Present (6 years 7 months)
  • Professor of Critical Care Medicine,
    ICU Medical, rehabilitation after ICU, PIC syndrome, ICUaW, Dysphagia, exercise, clinical ergospri
    April 1986 – Present (32 years 1 month)


  • McGill University
    Critical Care Medicine, Intensive Care
    1989 – 1991
  • Northwestern University
    Clinical Epidemiology & Preventive Cardiology
    1979 – 1982
    Rehabilitation Programme, Cardiovascular Risks Factors, Suden Death
  • High school First Gymnasio Larissis, Greece
    Premedical School Education
    1966 – 1971

Volunteer Experience & Causes

  • Organizing Medical centers in Ouganta and North Tanzania, Viziting as Physician since 1999.
    ΚΕΔΑΣ: Κέντρο Διεθνούς Αλληλεγγύης & Συνεργασίας " Οι Αγιοι Ανάργυροι Κοσμάς & Δαμιανός"
  • Ιδρυτικό Μέλος, Πρώτος Προεδρος
    Helenic Society of Clinical Ergaspirometry, Exercise & Rehabilitation, ΕΛΕΕΡΓΑ
    Σκοπός της Εταιρείας να προάγει την εκπαίδευση στην Αποκατάσταση.
    Η διεπιστημονική προσέγγιση της αποκατάστασης ως μια απολύτως αναγκαια προυπόθεση για την ανάπτυξη των προγραμμάτων αποκατάστασης.
    Η εκπαίδευση στην πρόληψη και αντιμετώπιση του συνδρόμου μετα νοσηλεία στην ΜΕθ (POst Intensive Care Syndrome PICS).

Causes Serafeim cares about:

  • Education
  • Health
  • Disaster and Humanitarian Relief
  • Science and Technology
  • Social Services


  • Clinical Research
  • ICU
  • Hospitals
  • Critical Care Medicine
  • Laboratory
  • Research
  • Teaching
  • Education
  • Public Speaking
  • Microsoft Office
  • Critical Care Medicine, Exercise Science, Mechanical Ventilation, Intensive Care
  • Leadership
  • English
  • Rehabilitation
  • Cardiopulmary Rehabilitation


  • Clinical Epidemiology
    Northwestern University Medical School Chicago
    April 1982 – Present

Athanasia Liozidou

Athanasia Liozidou
BPsych, MPsych, MPHs

Athanasia Liozidou earned her 4 years Bachelors Degree in Psychology from the Aristotle University of Thessaloniki. In 2012, she obtained her 3 years Postgraduate Degree in Clinical Neuropsychology (joint program of Athens Medical School and the University of Texas Health Science Center in Houston, USA). In 2015 she was admitted to the Postgraduate Program for Public Health of the National School of Public Health of Greece.

She has been trained at the 1st Psychiatry Dpt and the 1st Neurology Dpt of the National and Kapodistrian University of Athens (NKUA) (Aeginitio Hospital-Greece) at the Department of Physical Medicine and Rehabilitation of Memorial Hermann Hospital, Texas Medical Center in Houston (USA) at the Baylor College of Medicine in Houston (USA), at the Cognitive Neuroscience Unit of McGill Neurological Institute and Hospital in Montreal (Canada), at the Johns Hopkins Bloomberg School of Public Health in Baltimore (USA) and at the Department of Epidemiology and Biostatistics at the National School of Public Health of Athens.

She is a researcher and has clinical and academic appointments with various Institutions and Units in Greece. She is a Founding Member and the Secretary General of the Hellenic Neuropsychological Society (2015-present), a Regular Member of the Association of Greek Psychologists and a Regular Member of the International Neuropsychological Society.

Δρ. Βαγενά Ευθυμία

Clinical Exercise Physiologist
Chief of Therapeutic Dpts

Efthymia Vagena has born in Nicosia, Cyprus at 1979. She had her bachelor degree in Exercise Science with specialization in Health and Diseases, in Athens University. In 2006 she completed her graduated studies in Boston (Northeastern University), USA on Clinical Exercise Physiology with Specialization in Rehabilitation.

Since 2006 she is working at Filoktitis Rehabilitation Hospital, in Athens, Greece as a Head of Aquatic Therapy Department. In 2011 she became Assistant Lecturer in International Aquatic Therapy Faculty in Water Specific therapy.

She is a Certified Pool Operator from NSPF (2010) and on 2015 became CPO Tutor with Swimming Teaching Association (UK).

In 2015 she was promoted as a Deputy Coordinator of Therapeutic Program at Filoktitis. She is now a PhD student in Athens Medical School in Aquatic Therapy.

Ilias Chrysovalantis

Ilias Chrysovalantis
Dietitian Nutritionist


Experienced Dietitian Nutritionistwith proven work experience in the field of health and well-being.Specialized in the implementation of nutritional plans both in normal/clinical cases and in cases of sportspeople, alwayswith a view totheir special needs;with experience in food supplements, nutrition counseling and sales, with a degree specialized in Nutrition and Dietetics from the Alexander Technological Educational Institute of Thessaloniki

Work experience

05/2006 – 11/2006
Dietitian Nutritionist
Hippokration General Hospital of Thessaloniki, Greece

  • Internship as an intern dietitian.
  • Support of cases of patients with metabolic diseases.
  • Provision of full dietary monitoring (includingmetabolism measurement and body composition analysis).
  • Design of dietary plan for the regulation of the body weightin a wide range of health conditions, as well as counseling for children and adults.

01/2007 – 11/2007
Volunteer Dietitian Nutritionist
General Hospital of Volos, Greece

  • Voluntary work as dietitian nutritionistin the Endocrinology and Diabetes Department.
  • Follow-up of patients with typeΙ/ΙΙ diabetes, renal diabetes,gestational diabetes, dyslipidemia, hypertension and combination of the above.
  • Design of personalized dietary plans based on the medication the patients took.
  • Measurements of glucose levels in the bloodusing monitors, arterial blood pressure and ketone levels in the blood.

01/2009 – 11/2009
Dietitian Nutritionist
Taste n’ Diet

  • Education and counseling of clients with various dietary disorders, so that they can improve their health by adopting healthy dietary habbits.
  • Calculation of the dietary requirements of the patients based on the assessment of their medical history, blood tests, physical activityand other relevant factors.
  • Organization of team meetings for the update among the colleagues.
  • Sales and promotion via telephone of meal packages topotential customers.

01/2010 – 04/2016
Dietitian Nutritionist

  • Cooperation with local gyms and sports clubs in Volos, Greece. Provision of services and counseling to sportspeople and potential customers.
  • Provision of personalized dietary plans, implementation of weeklybody and fat measurements.
  • Dietary plans for clinical and normal conditions, as well as for cases of dietary disorders (e.g. anorexia).

05/2016 – 10/2016
Dietitian Nutritionist
Dr. Prinou – Beauty Salon and Weight control Center

  • Assessment and monitoring of patients-customers (obese, overweightandunderweight) and implementation of special dietary plansfor the modification of the meals according to the goals set.
  • Performance of dietary tests for the determination of the customers’ needs.

06/2017 – 11/2017
Dietitian Nutritionist
Eonia Clinica

  • Work as chief of the dietary department of the clinic.
  • Assessmentof the cases and participation in the initial sale.
  • Preparation of dietary plans, weekly measurements-fat measurements and counseling of the customers informing them for the new weight loss and beauty methods.

01/2018 –
Dietitian Nutritionist
Filoktitis Rehabilitation Center


02/2000 – 10/2006
Bachelor’s Degree from the Alexander Technological Educational Institute (ATEITH) inNutrition and Dietetics
Four-year Technological Educational Institute in Thessaloniki, Greece.

Scientific Organization

  • EDDE (Greek Dieticians Association)