Best General Surgeons in Bremen, Germany

•  Dr. Bernd Hertenstein is a well-known Clinical Oncologist with a career spanning 32 years of providing chemotherapy and radiotherapy to cancer patients. 
•  His areas of expertise include, performing Tumour Marker Blood Test, chemotherapy, Bone Marrow Transplant, Autologous bone marrow transplantation, Allogenic bone marrow transplantation from a related donor,  Allogenic bone marrow transplantation from an unrelated donor, radiofrequency ablation of the liver, chemotherapy for liver cancer, chemoembolization of the liver, chemotherapy for breast cancer, leukemia chemotherapy and stem cell transplantation. 
• He has contributed many scholarly articles to numerous publications.  

•    Dr.Alessandro Marra is an acclaimed Oncologist and Surgeon with a vast experience of 37 years of treating lung cancer and cardiothoracic ailments. 
•    Over his experience of several decades, he possesses the expertise of performing Lobectomy, lung cancer surgery and cardiothoracic surgery. 
•    He has to his repute, contributions of several articles in various publications. 
 

•    Dr. Dieter Ukena is a renowned Oncologist with an experience spanning across 37 years. Dr. Ukena has worked extensively in the field of treating lung cancer and respiratory ailments. 
•    He holds the professional membership of the German Society of Pulmonology and Respiratory Medicine (DGP).  
•    Dr. Ukena specialises in the treatment of pulmonary and pleural diseases. This also includes treating cancer and respiratory malfunctions during sleep and lung cancer with immunotherapy. He also offers immunotherapy with Keytruda (Pembolizumab) Clinics and radiotherapy for lung cancer. 
•    He has contributed many articles on obstructive airways disease and bronchial asthma to numerous publications. 

• Dr. Rainer Porschen is an ace Oncologist and a Gastroenterologist based in Bremen with a rich experience of 37 years in the field.  
• He is among the best-rated gastroenterologists in Europe and was ranked among the top 100 doctors of Germany by FOCUS magazine for the treatment of GI lesions. 
• He is a professional member of several medical societies of Germany that deal with the treatment of rectum and cancer, ulcerative colitis, pancreatic cancer, Barrett’s syndrome and reflux disease.   
• In 1973, he completed his graduation from the National University of Aachen and in 1980 received his doctorate from the Institute of Medicine of the Nuclear Research Center, Jülich.  
• His area of expertise is in the treatment of tumours of the gastrointestinal (GI) tract, X-ray diagnostics and in conducting colonoscopy.  He has also performed gastric bypass and Colectomy procedures. 
• He has authored several papers for various publications. 

• Dr. Mustafa Aydgodu is an Oncologist with experience of 25 years in treating cancers of the breast, ovaries and cervix.
• Dr. Aydogdu holds a certification by the German Cancer Society.
• His expertise includes, administering radiotherapy for breast cancer. He specialises in the reconstruction of the amputated breast. He holds a certificate of ‘Master in Senology’ and also performs cosmetic operations such as breast reduction, enlargement and correcting breast malformations.  

• Dr. Andreas Naumann is a reputed Oncologist with an experience spanning across 22 years. He is a specialist in ENT, Plastic Surgery and Special Pain. 
• He has held memberships of, the German Society for ENT medicine, ear and head surgery (1992), the Spanish-German Society for ENT medicine, ear and head surgery (1997), the European Tissue Engineering Society (2000), German Society for Plastic and Reconstructive Surgery eV (DGPW) (2002), Working Group on Plastic, Reconstructive and Aesthetic Head and Neck Surgery (APKO) (2003), European Academy of Facial Plastic Surgery (EAFPS) (2004) and the Guideline Commission "Auricular Surgery" of the German Society for ear, nose and throat medicine, ear and head surgery (2008).   
• He has also served as a Board member of the Otorhinolaryngologische Gesellschaft zu München eV (2001) and of the Working Group for Plastic, Reconstructive and Aesthetic Head and Neck Surgery (APKO) (2007). 
• He was the Presidium member, as a non-permanent advisory board for ENT medicine (2007). He was the Chairman of the Working Group for Plastic, Reconstructive and Aesthetic Head and Neck Surgery (APKO) of the German Society for Ear, Nose and Throat Medicine, Head and Neck Surgery (2014).
• He completed his study of Human Medicine at Ludwig Maximilians University, Munich, 1987-94. From July 1994 to December 1995, he underwent internship at the clinic and polyclinic for ENT patients at Ludwig Maximilians University, Munich.
• He earned a doctoral thesis in 1995 and a Postdoctoral qualification in 2005.  
• Dr. Naumann is an expert in general and special conservative/operative ENT medicine, neck and head cancer surgery, skull base surgery and endoscopic nasal and sinus surgery, restorative and hearing-improving surgery of the ear, Reconstructive neck and head and plastic surgeries.  
• He is also a qualified medical professional of Allergology and laser protection.
• He has contributed several scholarly articles to publications and written books and book contributions.  

• Dr. Huseyin Bektas is a Surgical Oncologist. He is Professor, Doctor of Medical Sciences. 
• Dr. Bektas is a member of The Association of Hepatobiliary and Pancreatic Surgery, German Society for Surgery, Association of Northwest German Surgeons, Association of German Surgeons, International College of Surgeon, Regenerative Medicine and Experimental Surgery (ReMediES).  He is also a   Board Member of SAZ Children’s Fund.
• Dr.Bektas studied medicine at Medizinische Hochschule Hanover (MHH, Hanover) where he teaches too.
• His areas of interest are, performing liver resection procedures and treating pancreatic cancer and transplant, Hepatocellular carcinoma and Gastric cancer.
• He has contributed significantly to many scientific publications. 

•  Dr. Johann Ockenga is a Surgical Oncologist and a Gastrointestinal Surgeon at Bremen-Mitte Clinic with an experience of 20 years. 
•  He was the Secretary of the German Society of Nutritional Medicine (2012). He has worked on several projects to develop guidelines for nutritional medicine. He has also contributed to the review of the World Journal of Gastroenterology. 
•  He possesses expertise in treating Sigmoid adenocarcinoma, Hepatocellular Carcinoma, Hepatitis B, Liver Diseases, Immunology and Colon cancer. 
•  He has contributed several papers to various publications over his career of two decades.