Dr. Kai Wiemer
Specialist in Gastroenterology and Internal Medicine in Recklinghausen
Knappschaft Kliniken Westfalen GmbH - Standort Recklinghausen· Dorstener Str. 151, 45657 Recklinghausen

Dr. Kai Wiemer is a specialist in Internal Medicine and Gastroenterology and heads the Department of Medicine II – Clinic for Gastroenterology at the Knappschaft Kliniken in Recklinghausen. With extensive expertise in endoscopy and the treatment of gastrointestinal diseases as well as chronic inflammatory bowel diseases, he has earned an excellent reputation. In addition to his clinical work, Dr. Wiemer is actively involved in medical research and continuing education.
Areas of focus
- Colorectal Cancer Screening – Regional Representative of the Lebensblicke Foundation
- Interventional Endoscopy
- Endoscopic Ultrasound (EUS)
- Nutritional Medicine
- ERCP and Cholangioscopy
About Dr. Kai Wiemer
Dr. Kai Wiemer is an experienced specialist in Internal Medicine and Gastroenterology, currently serving as Chief of Gastroenterology in the Department of Medicine II at the Knappschaft Kliniken in Recklinghausen. He has extensive expertise in the diagnosis and treatment of gastrointestinal as well as liver and pancreatic diseases. Dr. Wiemer is known for his holistic approach to patient care and emphasizes close collaboration with his team to ensure the best possible treatment.
Dr. Wiemer completed his medical studies at Goethe University in Frankfurt am Main and gained comprehensive experience in various clinical fields during his training. After obtaining his medical license, he pursued numerous advanced trainings that led him to become a specialist in gastroenterology. He is particularly distinguished by his expertise in endoscopy, the diagnosis of gastrointestinal cancers, and the treatment of chronic inflammatory bowel diseases.
Throughout his career, Dr. Wiemer has overseen and published several research projects that have contributed to the advancement of gastroenterological therapies. In addition, he is regularly involved in the education and training of medical professionals and actively promotes continuing medical education in the field of gastroenterology.
Alongside his clinical work, Dr. Wiemer is active in various scientific societies and has participated in numerous national and international congresses. He is co-author of the S1 guideline on functional dyspepsia (“irritable stomach”) of the German Society for Neurogastroenterology and Motility. His medical commitment and passion for gastroenterology make him a recognized expert in his field.
Dr. Wiemer completed his medical studies at Goethe University in Frankfurt am Main and gained comprehensive experience in various clinical fields during his training. After obtaining his medical license, he pursued numerous advanced trainings that led him to become a specialist in gastroenterology. He is particularly distinguished by his expertise in endoscopy, the diagnosis of gastrointestinal cancers, and the treatment of chronic inflammatory bowel diseases.
Throughout his career, Dr. Wiemer has overseen and published several research projects that have contributed to the advancement of gastroenterological therapies. In addition, he is regularly involved in the education and training of medical professionals and actively promotes continuing medical education in the field of gastroenterology.
Alongside his clinical work, Dr. Wiemer is active in various scientific societies and has participated in numerous national and international congresses. He is co-author of the S1 guideline on functional dyspepsia (“irritable stomach”) of the German Society for Neurogastroenterology and Motility. His medical commitment and passion for gastroenterology make him a recognized expert in his field.
Expert interviews
Location
How to reach Dr. Kai Wiemer
Knappschaft Kliniken Westfalen GmbH - Standort Recklinghausen
Dorstener Str. 15145657 RecklinghausenGermany
Specialisation
The medical spectrum of Dr. Kai Wiemer
Diseases
- Gastroenteritis (opens in a new tab)
- Ascites (opens in a new tab)
- Abdominal pain (opens in a new tab)
- Flatulence (opens in a new tab)
- hiccup (opens in a new tab)
- Heartburn (opens in a new tab)
- Nausea and Vomiting (opens in a new tab)
- Lactose Intolerance (opens in a new tab)
- Metabolic Syndrome (opens in a new tab)
- Metabolic disorder (opens in a new tab)
- Barrett's esophagus (opens in a new tab)
- Pancreatic Diseases (opens in a new tab)
- Appendicitis (opens in a new tab)
- Blood in the stool (opens in a new tab)
- Cholangitis (opens in a new tab)
- Chronic Inflammatory Bowel Diseases (opens in a new tab)
- Diarrhea (opens in a new tab)
- Diverticula - Diverticulosis (opens in a new tab)
- Diverticulitis (opens in a new tab)
- Gastritis (opens in a new tab)
- Stomach Disorders (opens in a new tab)
- Stomach ulcer (opens in a new tab)
- Food Intolerance (opens in a new tab)
- Pancreatitis (opens in a new tab)
- Reflux Disease (opens in a new tab)
- Irritable Bowel Syndrome (opens in a new tab)
- Esophageal disease (opens in a new tab)
- Celiac Disease (opens in a new tab)
- Duodenal ulcer (opens in a new tab)
- Histamine Intolerance (opens in a new tab)
- Microscopic colitis (opens in a new tab)
- Indeterminate colitis (opens in a new tab)
- Echinococcosis (opens in a new tab)
- Irritable Stomach Syndrome
- Constipation
Treatments
Diagnostics
- Endosonography (opens in a new tab)
- H2 Breath Test (opens in a new tab)
- Fecal Occult Blood Test (Hemoccult) (opens in a new tab)
- Helicobacter Test (opens in a new tab)
- Colonoscopy (opens in a new tab)
- Long-Term pH Measurement (opens in a new tab)
- Gastroscopy (opens in a new tab)
- Esophageal manometry (opens in a new tab)
Areas of Expertise
Dr. Kai Wiemer
Specialist in Gastroenterology and Internal Medicine in Recklinghausen

