Dr. Jan Sebastian Balleisen, an esteemed oncologist hailing from Germany, brings a wealth of experience in the field of oncology and hematology. With numerous successful years in his repertoire, Dr. Balleisen currently holds the distinguished position of Head of the Oncology and Hematology Department at the Sana Hospital in Duisburg, Germany. His educational journey began in the city of Munster, shaping the foundation of his medical expertise. Throughout his illustrious career, Dr. Balleisen has demonstrated his commitment to advancing patient care and medical knowledge. From his early roles as a Junior Doctor and Specialist Registrar to his consultant appointments at Dusseldorf University Hospital and Evangelisches Krankenhaus Mülheim Hospital, he has continually contributed to the fields of Hematology, Oncology, and Clinical Immunology. Since 2017, Dr. Balleisen has held the pivotal role of Head of the Oncology, Hematology, and Palliative Medicine Department at the Johanniter Krankenhaus Rheinhausen Hospital, further solidifying his standing in the medical community. In 2021, he embarked on a new chapter as the Head of the Oncology and Hematology Department at Sana Hospitals in Duisburg, symbolizing his ongoing dedication to advancing cancer care. As an influential member of key medical societies, Dr. Jan Sebastian Balleisen actively participates in the German Society of Hematology and Medical Oncology, the German Society of Palliative Medicine, the German Nutrition Society, and the European Society for Medical Oncology.
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