All specialties

Prof. Dr. med. Katrin Ivens
NephrologistDusseldorf, Germany
33+ years of experience
Senior Consultant
Works At: University Hospital Dusseldorf
4.7 (14 Ratings)
- Prof. Dr. med. Katrin Ivens is a nephrologist with 29+ years of experience.
- Her forte includes hemodialysis, peritoneal dialysis, kidney biopsy, kidney transplant, hypertension and nephrolithiasis.
- She is a member of esteemed medical organizations such as the German Society of Nephrology.
- Dr. Ivens has many publications under her name in the Journal of Clinical Nephrology.
- She did her training in nephrology from Universitätsklinikum Freiburg, Freiburg.
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- Prof. Dr. med. Katrin Ivens is a nephrologist with 29+ years of experience.
- Her forte includes hemodialysis, peritoneal dialysis, kidney biopsy, kidney transplant, hypertension and nephrolithiasis.
- She is a member of esteemed medical organizations such as the German Society of Nephrology.
- Dr. Ivens has many publications under her name in the Journal of Clinical Nephrology.
- She did her training in nephrology from Universitätsklinikum Freiburg, Freiburg.

Prof. Dr. med. Hans Peter Hartung
Neurologist
- With 26+ years of experience, Prof. Dr. med. Hans Peter Hartung is a world-renowned neurologist.
- His scientific interests have been in the field of translational neurology, especially in the area of diseases of the brain, nerves, spinal cord and muscles.
- To find new strategies for the treatment of diseases of nervous system, he has done studies on patients with normal and disturbed interaction between immune system and nervous system.
- Dr. Hartung has been involved in numerous steering committees for international and multicenter drug studies.
- He is a member of international research committees such as ECTRIMS (former President), WHO, Inflammatory Neuropathy Consortium and Peripheral Nerve Society.
- He is in medical advisory boards of patient associations such as the German Multiple Sclerosis Society and the German Paraplegia Foundation.
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- With 26+ years of experience, Prof. Dr. med. Hans Peter Hartung is a world-renowned neurologist.
- His scientific interests have been in the field of translational neurology, especially in the area of diseases of the brain, nerves, spinal cord and muscles.
- To find new strategies for the treatment of diseases of nervous system, he has done studies on patients with normal and disturbed interaction between immune system and nervous system.
- Dr. Hartung has been involved in numerous steering committees for international and multicenter drug studies.
- He is a member of international research committees such as ECTRIMS (former President), WHO, Inflammatory Neuropathy Consortium and Peripheral Nerve Society.
- He is in medical advisory boards of patient associations such as the German Multiple Sclerosis Society and the German Paraplegia Foundation.

Prof. Dr. med. Lorenz Sellin
Nephrologist
- Prof. Dr. med. Lorenz Sellin is a nephrologist with 24+ years of experience.
- His clinical interest lies in nephrectomy, treatment for chronic kidney disease, kidney infections, and kidney failure.
- He did graduation from Medical University of Lübeck, Germany.
- Dr. Sellin completed training in nephrology from University Hospital Heidelberg, Germany.
- He is a member of the German Society of Nephrology.
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- Prof. Dr. med. Lorenz Sellin is a nephrologist with 24+ years of experience.
- His clinical interest lies in nephrectomy, treatment for chronic kidney disease, kidney infections, and kidney failure.
- He did graduation from Medical University of Lübeck, Germany.
- Dr. Sellin completed training in nephrology from University Hospital Heidelberg, Germany.
- He is a member of the German Society of Nephrology.

Dr. med. Nora Dehina
Nephrologist
- Dr. med. Nora Dehina is a nephrologist with 12+ years of experience.
- Her clinical interest includes amyloidosis, kidney disorder, electrolyte disorders, Glomerulonephritis, Hypertension, and other kidney diseases.
- She is a member of The Society of Nephrology in Germany.
- Dr. Dehina did her training in nephrology at Charite University, Germany.
- She has several publications under her name in the Journal of Clinical Nephrology.
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- Dr. med. Nora Dehina is a nephrologist with 12+ years of experience.
- Her clinical interest includes amyloidosis, kidney disorder, electrolyte disorders, Glomerulonephritis, Hypertension, and other kidney diseases.
- She is a member of The Society of Nephrology in Germany.
- Dr. Dehina did her training in nephrology at Charite University, Germany.
- She has several publications under her name in the Journal of Clinical Nephrology.
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Prof. Dr. Sven Meuth
Neurologist
- With 16+ years of experience, Prof. Dr. Sven Meuth is a world-renowned neurologist.
- His clinical interest lies in Deep Brain Stimulation, Cerebral Palsy, Epilepsy, Meningitis, Multiple Sclerosis and Parkinson's disease.
- He did Graduation from the University of Magdeburg, Germany and post-graduation from the University of Magdeburg, Germany.
- Dr. Meuth has numerous publications under his name covering different topics of neurology diseases.
- He has won several awards and special recognitions, amongst them are:
- Dissertation award from Otto-von-Guericke University, Magdeburg
- Young-Talent-Award by Klaus-Felgenhauer Foundation
- Oppenheim Young-Talent-Award for Multiple sclerosis research
- Award granted by Maria Möller Foundation, Oncology
- PRO-SCIENTIA-Award granted by Eckhart-Buddecke-Association
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- Dissertation award from Otto-von-Guericke University, Magdeburg
- Young-Talent-Award by Klaus-Felgenhauer Foundation
- Oppenheim Young-Talent-Award for Multiple sclerosis research
- Award granted by Maria Möller Foundation, Oncology
- PRO-SCIENTIA-Award granted by Eckhart-Buddecke-Association
- With 16+ years of experience, Prof. Dr. Sven Meuth is a world-renowned neurologist.
- His clinical interest lies in Deep Brain Stimulation, Cerebral Palsy, Epilepsy, Meningitis, Multiple Sclerosis and Parkinson's disease.
- He did Graduation from the University of Magdeburg, Germany and post-graduation from the University of Magdeburg, Germany.
- Dr. Meuth has numerous publications under his name covering different topics of neurology diseases.
- He has won several awards and special recognitions, amongst them are:
- Dissertation award from Otto-von-Guericke University, Magdeburg
- Young-Talent-Award by Klaus-Felgenhauer Foundation
- Oppenheim Young-Talent-Award for Multiple sclerosis research
- Award granted by Maria Möller Foundation, Oncology
- PRO-SCIENTIA-Award granted by Eckhart-Buddecke-Association

Prof. Dr. Ertan Mayatepek
Paediatric Cardiologist
- Prof. Dr. Ertan Mayatepek is a well-known Pediatric Cardiologist, General Pediatrics, and Neonatology with 31+ years of experience in the field.
- He is the President of the German Society of Pediatrics and Adolescent Medicine (DGKJ), Deputy Dean of the Medical Faculty of the Heinrich Heine University Duesseldorf, and has also been on the board of the approximately 15,000 member scientific societies.
- He completed his study of medicine at the Heinrich Heine University Duesseldorf and Ohio Medical College, Toledo, Ohio, USA (Studienstiftung Cusanuswerk Foundation Scholarship).
- He also has a Postgraduate Scholarship from the German Research Foundation, Department of Tumor Biochemistry, German Cancer Research Center, Heidelberg in 1991, and a Diploma in Pediatric Infectology (German Society of Pediatric Infectiology) and Diabetology (German Society of Diabetology), additional qualifications in Pediatric Endocrinology, Diabetology, and Infectology.
- Dr. Mayatepek has a substantial and wide catalog of original publications in international journals, has authored several books, and been a member of the editorial board of various pediatric journals.
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- Prof. Dr. Ertan Mayatepek is a well-known Pediatric Cardiologist, General Pediatrics, and Neonatology with 31+ years of experience in the field.
- He is the President of the German Society of Pediatrics and Adolescent Medicine (DGKJ), Deputy Dean of the Medical Faculty of the Heinrich Heine University Duesseldorf, and has also been on the board of the approximately 15,000 member scientific societies.
- He completed his study of medicine at the Heinrich Heine University Duesseldorf and Ohio Medical College, Toledo, Ohio, USA (Studienstiftung Cusanuswerk Foundation Scholarship).
- He also has a Postgraduate Scholarship from the German Research Foundation, Department of Tumor Biochemistry, German Cancer Research Center, Heidelberg in 1991, and a Diploma in Pediatric Infectology (German Society of Pediatric Infectiology) and Diabetology (German Society of Diabetology), additional qualifications in Pediatric Endocrinology, Diabetology, and Infectology.
- Dr. Mayatepek has a substantial and wide catalog of original publications in international journals, has authored several books, and been a member of the editorial board of various pediatric journals.

Prof. Dr. Daniel Hanggi
NeurosurgeonDusseldorf, Germany
46+ years of experience
Head of Department
Works At: University Hospital Dusseldorf
- Prof. Dr. Daniel Hanggi is a Dusseldorf-based Neurosurgeon with over 42+ years of experience.
- He is a member of the German Society of Neurosurgery (DGNC), German Spine Society (DWG), and Association of German Neurosurgeons (BDNC).
- He completed his education at the Universities of Zurich and Geneva and additional 2 semesters of computer science at the Swiss Federal Institute of Technology Zurich from 1972 to 1978.
- He also has done clinical training for Neurosurgeons in Switzerland, the USA, and Canada from 1979 to 1984, and in 1985, he completed his Diploma in Neurosurgery from Switzerland.
- Dr. Hanggi has exceptional familiarity in dealing with spinal cord tumors, skull base, auditory nerve tumor, trigeminal neuralgia, Pituitary (endoscopic technique), Cerebral vascular malformation (aneurysm, AVM), Cranio-cervical junction, Complex spine (tumor, degeneration, anomaly, trauma), pediatric neurosurgery, etc.
- He has also penned and co-authored books and articles in national journals.
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- Prof. Dr. Daniel Hanggi is a Dusseldorf-based Neurosurgeon with over 42+ years of experience.
- He is a member of the German Society of Neurosurgery (DGNC), German Spine Society (DWG), and Association of German Neurosurgeons (BDNC).
- He completed his education at the Universities of Zurich and Geneva and additional 2 semesters of computer science at the Swiss Federal Institute of Technology Zurich from 1972 to 1978.
- He also has done clinical training for Neurosurgeons in Switzerland, the USA, and Canada from 1979 to 1984, and in 1985, he completed his Diploma in Neurosurgery from Switzerland.
- Dr. Hanggi has exceptional familiarity in dealing with spinal cord tumors, skull base, auditory nerve tumor, trigeminal neuralgia, Pituitary (endoscopic technique), Cerebral vascular malformation (aneurysm, AVM), Cranio-cervical junction, Complex spine (tumor, degeneration, anomaly, trauma), pediatric neurosurgery, etc.
- He has also penned and co-authored books and articles in national journals.

Prof. Dr. Dieter Haussinger
Medical GastroenterologistDusseldorf, Germany
48+ years of experience
Head of Department
Works At: University Hospital Dusseldorf
- Prof. Dr. Dieter Haussinger is a renowned Medical Gastroenterologist with experience of more than 44+ years in the field.
- He is the President of the German Association for the Study of the Liver (GASL), Presidium Member of the North-Rhine-Westphalian Academy of Sciences, Humanities and Arts (since 2016 Vice President), Council Member of the Medical Faculty of the Heinrich Heine University Duesseldorf, and Senate Member of the Gottfried Wilhelm Leibniz Scientific Community.
- He is also the Dean of the Medical Faculty at the Heinrich Heine University Duesseldorf and Board Member of the University Hospital Duesseldorf, Scientific Advisory Board Member of the Boehringer Ingelheim Foundation, Member of the Senate and Licensing Committee of the German Research Foundation for the Special Research Areas, and many more organizations.
- He has completed his Medical Studies at the Ludwig Maximilian University of Munich in 1970.
- He has a special interest in Endoscopic ultrasound, Longitudinal & Transversalscanner with puncture Gastroscopy, Diagnostic and interventional endoscopy, colonoscopy, Hemostasis (argon plasma coagulation clipping, Endoloop), Ultrathin-Endoscopy (e.g. nasal gastroscopy), Reflux disease & Gastrointestinal Motility measurements, etc.
- He has presented numerous papers in national as well as international conferences.
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- Prof. Dr. Dieter Haussinger is a renowned Medical Gastroenterologist with experience of more than 44+ years in the field.
- He is the President of the German Association for the Study of the Liver (GASL), Presidium Member of the North-Rhine-Westphalian Academy of Sciences, Humanities and Arts (since 2016 Vice President), Council Member of the Medical Faculty of the Heinrich Heine University Duesseldorf, and Senate Member of the Gottfried Wilhelm Leibniz Scientific Community.
- He is also the Dean of the Medical Faculty at the Heinrich Heine University Duesseldorf and Board Member of the University Hospital Duesseldorf, Scientific Advisory Board Member of the Boehringer Ingelheim Foundation, Member of the Senate and Licensing Committee of the German Research Foundation for the Special Research Areas, and many more organizations.
- He has completed his Medical Studies at the Ludwig Maximilian University of Munich in 1970.
- He has a special interest in Endoscopic ultrasound, Longitudinal & Transversalscanner with puncture Gastroscopy, Diagnostic and interventional endoscopy, colonoscopy, Hemostasis (argon plasma coagulation clipping, Endoloop), Ultrathin-Endoscopy (e.g. nasal gastroscopy), Reflux disease & Gastrointestinal Motility measurements, etc.
- He has presented numerous papers in national as well as international conferences.

Prof. Dr. Hans-Jacob Steiger
Neurosurgeon
- Prof. Dr. Hans-Jacob Steiger is a celebrated Neurosurgeon with over 41+ years of experience.
- He completed his education at the Universities of Zurich and Geneva and additional 2 semesters of computer science at the Swiss Federal Institute of Technology Zurich between 1972 to 1978.
- He also has done clinical training for neurosurgery from the USA and Canada, and later received his Research Grant from the Swiss National Science Foundation.
- Dr. Steiger is specialized in brain tumor surgery, cerebrovascular surgery, spinal surgery, treatment of movement disorders, and pain, as well as pediatric neurosurgery.
- He has published various national and international paper publications on neurosurgery and spinal surgery.
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- Prof. Dr. Hans-Jacob Steiger is a celebrated Neurosurgeon with over 41+ years of experience.
- He completed his education at the Universities of Zurich and Geneva and additional 2 semesters of computer science at the Swiss Federal Institute of Technology Zurich between 1972 to 1978.
- He also has done clinical training for neurosurgery from the USA and Canada, and later received his Research Grant from the Swiss National Science Foundation.
- Dr. Steiger is specialized in brain tumor surgery, cerebrovascular surgery, spinal surgery, treatment of movement disorders, and pain, as well as pediatric neurosurgery.
- He has published various national and international paper publications on neurosurgery and spinal surgery.

Dr. Mahdi Rezai
Surgical OncologistDusseldorf, Germany
37+ years of experience
Head of Department
Works At: University Hospital Dusseldorf
5.0 (12 Ratings)
- Dr. Mahdi Rezai is a Surgical Oncologist with experience of 33+ years in the field.
- He is a Founder of the West German Study Group Breast Cancer, a member of the North-Eastern German Society of Gynecologic Oncology, German Society of Plastic, Reconstructive and Aesthetic Surgeons, European Institute of Oncology, Austrian Society of Gynaecology and Obstetrics, and Turkish Academy of Senology.
- He completed his medical studies at the Medical Faculty of the Heinrich-Heine-University in 1975 and has a specialty in oncology.
- Dr. Rezai has exceptional knowledge in breast cancer, lung cancer staging, curative and palliative surgery, Surgery for mesothelioma, Laser surgery of lung metastases, intraoperative hyperthermic chemotherapy, minimally invasive thoracic surgery, Tracheal Surgery, Interventional bronchoscopy, stents, laser therapy, etc.
- He has published many articles in peer-reviewed national and international journals.
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- Dr. Mahdi Rezai is a Surgical Oncologist with experience of 33+ years in the field.
- He is a Founder of the West German Study Group Breast Cancer, a member of the North-Eastern German Society of Gynecologic Oncology, German Society of Plastic, Reconstructive and Aesthetic Surgeons, European Institute of Oncology, Austrian Society of Gynaecology and Obstetrics, and Turkish Academy of Senology.
- He completed his medical studies at the Medical Faculty of the Heinrich-Heine-University in 1975 and has a specialty in oncology.
- Dr. Rezai has exceptional knowledge in breast cancer, lung cancer staging, curative and palliative surgery, Surgery for mesothelioma, Laser surgery of lung metastases, intraoperative hyperthermic chemotherapy, minimally invasive thoracic surgery, Tracheal Surgery, Interventional bronchoscopy, stents, laser therapy, etc.
- He has published many articles in peer-reviewed national and international journals.

Prof. Dr. Malte Kelm
Interventional CardiologistDusseldorf, Germany
39+ years of experience
Head of Department
Works At: University Hospital Dusseldorf
- Prof. Dr. Malte Kelm is a well-known Interventional Cardiologist with 35+ years of experience in the field.
- He is a member of the American Heart Association (AHA), European Society of Cardiology (ESC), ESC Congress Programme Committee (CPC), German Cardiac Society (DGK), and Society of Nitric Oxide Research.
- He is also the Founding Member of the Heart Center Düsseldorf and Cardiovascular Research Institute Düsseldorf (CARID).
- He graduated from Universities Cologne in 1986 and further did his residency at the Department of Neurology, University Hospital Cologne, and Max-Planck-Institute for Brain Research from the same year.
- He also has a Postdoctoral Fellowship from the Department of Cardiovascular Physiology, University Düsseldorf and Clinical Research Centre, London in 1987, and a Fellowship, Division of Cardiology, University Hospital Düsseldorf in 1989.
- Dr. Kelm has extensive experience in Coronary artery disease, Myocardial infarction, Heart failure, Cardiac arrhythmias, Pacemaker- and ICD therapy, Interventional electrophysiology, etc.
- He has a large number of scientific awards and also on the editorial board of Basic Research in Cardiology, European Heart Journal, Clinical Research in Cardiology, and many more.
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- Prof. Dr. Malte Kelm is a well-known Interventional Cardiologist with 35+ years of experience in the field.
- He is a member of the American Heart Association (AHA), European Society of Cardiology (ESC), ESC Congress Programme Committee (CPC), German Cardiac Society (DGK), and Society of Nitric Oxide Research.
- He is also the Founding Member of the Heart Center Düsseldorf and Cardiovascular Research Institute Düsseldorf (CARID).
- He graduated from Universities Cologne in 1986 and further did his residency at the Department of Neurology, University Hospital Cologne, and Max-Planck-Institute for Brain Research from the same year.
- He also has a Postdoctoral Fellowship from the Department of Cardiovascular Physiology, University Düsseldorf and Clinical Research Centre, London in 1987, and a Fellowship, Division of Cardiology, University Hospital Düsseldorf in 1989.
- Dr. Kelm has extensive experience in Coronary artery disease, Myocardial infarction, Heart failure, Cardiac arrhythmias, Pacemaker- and ICD therapy, Interventional electrophysiology, etc.
- He has a large number of scientific awards and also on the editorial board of Basic Research in Cardiology, European Heart Journal, Clinical Research in Cardiology, and many more.

Prof. Dr. Rainer Haas
HematologistDusseldorf, Germany
42+ years of experience
Head of Department
Works At: University Hospital Dusseldorf
4.7 (13 Ratings)
- Prof. Dr. Rainer Haas is a Hematologist-Oncologist in Germany with experience of over 38+ years.
- After he received his medical education, he trained for the title of Doctor of Medicine at the Department of Hematology, Oncology, and Rheumatology at the University Hospital Heidelberg in 1984.
- Later, he did his Research Internship at the German Cancer Society, Ontario Institute for Cancer Research, Toronto, Canada in 1985 and also Habilitation and Venia Legendi, Internal Medicine in 1991.
- His areas of interest are the treatment of leukemia and lymphoma, Radiochemotherapy, stem cell transplant (autologous, allogenic & umbilical cord blood transplant), Antibody Therapy, Immunotherapy, anemia, etc.
- Dr. Haas has presented many papers in diverse conferences held nationally and internationally.
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- Prof. Dr. Rainer Haas is a Hematologist-Oncologist in Germany with experience of over 38+ years.
- After he received his medical education, he trained for the title of Doctor of Medicine at the Department of Hematology, Oncology, and Rheumatology at the University Hospital Heidelberg in 1984.
- Later, he did his Research Internship at the German Cancer Society, Ontario Institute for Cancer Research, Toronto, Canada in 1985 and also Habilitation and Venia Legendi, Internal Medicine in 1991.
- His areas of interest are the treatment of leukemia and lymphoma, Radiochemotherapy, stem cell transplant (autologous, allogenic & umbilical cord blood transplant), Antibody Therapy, Immunotherapy, anemia, etc.
- Dr. Haas has presented many papers in diverse conferences held nationally and internationally.
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